Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 23
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
J Exp Zool B Mol Dev Evol ; 336(3): 191-197, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33819384

RESUMO

The developmental and evolutionary principles of coloniality in marine animals remain largely unexplored. Although many common traits have evolved independently in different groups of colonial animals, questions about their significance for colonial life histories remain unanswered. In 2018 (Nov. 25 - Dec. 8), the inaugural course on the Evolution of Coloniality and Modularity took place at the Center for Marine Biology of the University of São Paulo (CEBIMAR-USP), Brazil. During the intensive two-week graduate-level course, we addressed some of the historical ideas about animal coloniality by focal studies in bryozoans, tunicates, cnidarians, and sponges. We discussed many historical hypotheses and ways to test these using both extant and paleontological data, and we carried direct observations of animal colonies in the different phyla to address questions about coloniality. We covered topics related to multi-level selection theory and studied colonial traits, including modular miniaturization, polymorphism, brooding, and allorecognition. Course participants carried out short research projects using local species of animals to address questions on allorecognition and regeneration in ascidians and sponges, fusion and chimerism in anthoathecate hydrozoans, and evolution of polymorphism in bryozoans. Although many questions remain unanswered, this course served as a foundation to continue to develop a developmental and evolutionary synthesis of clonal and modular development in colonial marine organisms.

2.
Mar Pollut Bull ; 167: 112310, 2021 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-33831702

RESUMO

Artificial habitats, such as harbours and marinas, are entry doors for the introduction and dispersal of species. Surveys on fouling community in these habitats help to understand preventing environmental impacts and management of invasive species. Thus, a survey on fouling bryozoan fauna was carried out along 17 artificial habitats (eight harbours and nine marinas) from three coastal stretches in Southwestern Atlantic. A total of 55 species were identified, including 13 non-native, 33 cryptogenic and nine native taxa. Only five bryozoan species were found in more than 75% of sampled sites. Our analysis revealed that bryozoan fouling communities in artificial habitats do not vary significantly between commercial and recreational localities. However, we also found that faunal assemblages varied significantly along Brazilian coastal stretches that are distinguished by environmental conditions, such as salinity and temperature.

3.
Zootaxa ; 4933(1): zootaxa.4933.1.2, 2021 Feb 18.
Artigo em Inglês | MEDLINE | ID: mdl-33756803

RESUMO

Free-living bryozoans, unlike most cheilostomes, live unattached from the substratum on or within soft sedimentary bottoms. Bryozoans of the family Cupuladriidae Lagaaij, 1952 are probably the best-studied free-living representatives. In Brazil, eight species of cupuladriids have been reported to date, including some regarded as species complexes. This paper documents cupuladriid taxa from northeastern and northern Brazil based on the examination of 1236 colonies. Three species previously reported from Brazil are described: Cupuladria monotrema (Busk, 1884), Discoporella gemmulifera Winston Vieira, 2013 and Discoporella salvadorensis Winston, Vieira Woollacott, 2014. A new species, Cupuladria minuta n. sp., is erected; it differs from its congeners in having small, flat discoid colonies, with the central area up to the fifth astogenetic generation composed of vicarious avicularia with an auriform opesia, and quadrangular to rectangular basal sectors with 1-6 small openings per sector. Our results suggest that four species previously recorded from Brazil are doubtful-Cupuladria canariensis (Busk, 1859), Cupuladria biporosa Canu Bassler, 1923, Discoporella umbellata (Defrance, 1923) and Discoporella depressa (Conrad, 1841). Some Brazilian specimens previously assigned to Discoporella umbellata var. conica are re-assigned to D. salvadorensis. The species studied here frequently co-occur on mainly sandy and muddy bottoms at 8-130 m depth, as it is typical of most living populations of cupuladriids. The sedimentation rate, and thus the bottom composition, likely influence the distribution of cupuladriids in Brazil, with Cupuladria species being more common in stabler and coarser sea bottoms than Discoporella species, which tend to be more broadly distributed.


Assuntos
Briozoários , Animais , Brasil
4.
An Acad Bras Cienc ; 92(3): e20191096, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33263662

RESUMO

Biological and abiotic processes influence ecosystem structure and species distribution. For bryozoan assemblages, depth, substratum and habitat structure are among the main factors influencing their distribution. Ecological studies on bryozoan fauna from Brazil are scarce and factors affecting the distribution and/or diversity of this common group are obscure. Here we attempted to verify the influence of bathymetry on bryozoan richness on the north shore of Bahia State, north-eastern Brazil. We identified 57 bryozoan taxa, comprising 35 families and 50 genera, all belonging to the Cheilostomata. Retevirgula multipunctata Winston, Vieira & Woollacott, 2014 and Tetraplaria dichotoma (Osburn, 1914) and the genus Aimulosia Jullien, 1888 were recorded for the first time from Bahia State. Species growing as encrusting sheets were dominant at all depths. There was a significant difference in richness among samples at different depths, with highest values of richness at 40 meters (Kruskal-Wallis Test). Analysis of similarities revealed a significant difference among the bryozoan assemblages, mainly when comparing assemblages from 10 and 20 meters with deeper ones. Also, shallower assemblages composition varied much than assemblages from 30 and 40 meters. Since depth is a proxy for several environmental parameters, further studies are needed to identify other factors influencing bryozoan distribution.

5.
Zootaxa ; 4890(3): zootaxa.4890.3.3, 2020 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-33311117

RESUMO

Epibiosis is a common phenomenon, found in different taxa of aquatic animals. This relationship could occur as hyperepibiosis, when a basibiont being also an epibiont, providing a stable substrate for the hypersymbiont. Here we reported a ciliate-bryozoan-crustacean hyperepibiosis in Mandovi River mouth, Goa, West coast of India. We provided descriptions and characterization of the crab Atergatis sp., serving as basibiont for the bryozoan Triticella pedicellata (Alder, 1857), in turn colonized with (hyperepibionts) the ciliates Paracineta saifulae (Mereschkowsky, 1877) and Cothurnia ceramicola Kahl, 1933. Paracineta saifulae and Cothurnia ceramicola are reported here for first time from the Indian Ocean.


Assuntos
Braquiúros , Briozoários , Cilióforos , Animais , Índia
6.
Zootaxa ; 4786(4): zootaxa.4786.4.4, 2020 Jun 04.
Artigo em Inglês | MEDLINE | ID: mdl-33056461

RESUMO

At date, seven species of Stylopoma Levinsen, 1909 are reported from the Brazilian coast, five of which are known from Bahia State in the northeastern region. Here we describe four new species of Stylopoma, all from Bahia State: Stylopoma corallinum n. sp., Stylopoma faceluciae n. sp., Stylopoma multiavicularia n. sp. and Stylopoma sinuata n. sp. Unlike the Caribbean species of Stylopoma, that mainly have rounded primary orifice and slit-like sinus, the morphology of the primary orifice of Brazilian taxa, including the new species presented here, is quite variable. In the newly described taxa, the sinus is drop-shaped in S. corallinum n. sp. and S. faceluciae n. sp., U-shaped in S. multiavicularia n. sp. and V-shaped in S. sinuata n. sp. Like congeners from the Caribe, S. corallinum n. sp., S. faceluciae n. sp. and S. multiavicularia n. sp. have avicularia on the surface of the ooecia. Remarks on the morphological characters currently used in Stylopoma taxonomy are provided, including a comparative table of all living species worldwide.


Assuntos
Briozoários , Aranhas , Animais , Brasil
7.
Mar Drugs ; 18(4)2020 Apr 09.
Artigo em Inglês | MEDLINE | ID: mdl-32283669

RESUMO

Less than one percent of marine natural products characterized since 1963 have been obtained from the phylum Bryozoa which, therefore, still represents a huge reservoir for the discovery of bioactive metabolites with its ~6000 described species. The current review is designed to highlight how bryozoans use sophisticated chemical defenses against their numerous predators and competitors, and which can be harbored for medicinal uses. This review collates all currently available chemoecological data about bryozoans and lists potential applications/benefits for human health. The core of the current review relates to the potential of bryozoan metabolites in human diseases with particular attention to viral, brain, and parasitic diseases. It additionally weighs the pros and cons of total syntheses of some bryozoan metabolites versus the synthesis of non-natural analogues, and explores the hopes put into the development of biotechnological approaches to provide sustainable amounts of bryozoan metabolites without harming the natural environment.

8.
BMC Evol Biol ; 19(1): 235, 2019 12 27.
Artigo em Inglês | MEDLINE | ID: mdl-31881939

RESUMO

BACKGROUND: Understanding the phylogenetic relationships among species is one of the main goals of systematic biology. Simultaneously, credible phylogenetic hypotheses are often the first requirement for unveiling the evolutionary history of traits and for modelling macroevolutionary processes. However, many non-model taxa have not yet been sequenced to an extent such that statistically well-supported molecular phylogenies can be constructed for these purposes. Here, we use a genome-skimming approach to extract sequence information for 15 mitochondrial and 2 ribosomal operon genes from the cheilostome bryozoan family, Adeonidae, Busk, 1884, whose current systematics is based purely on morphological traits. The members of the Adeonidae are, like all cheilostome bryozoans, benthic, colonial, marine organisms. Adeonids are also geographically widely-distributed, often locally common, and are sometimes important habitat-builders. RESULTS: We successfully genome-skimmed 35 adeonid colonies representing 6 genera (Adeona, Adeonellopsis, Bracebridgia, Adeonella, Laminopora and Cucullipora). We also contributed 16 new, circularised mitochondrial genomes to the eight previously published for cheilostome bryozoans. Using the aforementioned mitochondrial and ribosomal genes, we inferred the relationships among these 35 samples. Contrary to some previous suggestions, the Adeonidae is a robustly supported monophyletic clade. However, the genera Adeonella and Laminopora are in need of revision: Adeonella is polyphyletic and Laminopora paraphyletically forms a clade with some Adeonella species. Additionally, we assign a sequence clustering identity using cox1 barcoding region of 99% at the species and 83% at the genus level. CONCLUSIONS: We provide sequence data, obtained via genome-skimming, that greatly increases the resolution of the phylogenetic relationships within the adeonids. We present a highly-supported topology based on 17 genes and substantially increase availability of circularised cheilostome mitochondrial genomes, and highlight how we can extend our pipeline to other bryozoans.


Assuntos
Briozoários/classificação , Briozoários/genética , Animais , Evolução Biológica , Evolução Molecular , Genoma Mitocondrial , Filogenia , Análise de Sequência de DNA , Óperon de RNAr
9.
Mar Pollut Bull ; 146: 884-892, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31426232

RESUMO

Human occupation of coastal areas promotes the establishment of non-native species but information on bioinvasions is usually biased toward the Northern Hemisphere. We assessed non-native species' importance in sessile communities at six marinas along the most urbanized area of the Southwestern Atlantic coastline. We found 67 species, of which 19 are exotic. The most frequent species was the exotic polychaete Branchiomma luctuosum, while the most abundant was the exotic bryozoan Schizoporella errata that monopolized the substrata in three marinas. Along with S. errata, the exotic polychaete Hydroides elegans and ascidian Styela plicata dominated space in the three remaining marinas, while native species were in general rare. We show that communities associated with artificial substrata along this Brazilian urbanized area are dominated by exotic species and that using abundance data along with species identity can improve our understanding of the importance of exotic species for the dynamics of biological communities.


Assuntos
Organismos Aquáticos/crescimento & desenvolvimento , Animais , Organismos Aquáticos/classificação , Oceano Atlântico , Biota , Brasil , Briozoários/classificação , Briozoários/crescimento & desenvolvimento , Ecossistema , Atividades Humanas , Humanos , Espécies Introduzidas , Poliquetos/classificação , Poliquetos/crescimento & desenvolvimento , Dinâmica Populacional , Urocordados/classificação , Urocordados/crescimento & desenvolvimento
10.
Mar Biodivers ; 49(3): 1505-1518, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31258814

RESUMO

New research on bryozoans has determined that formerly widespread species are in many cases complexes of similar, but distinct, species with more restricted distributions. Notwithstanding, the limits of distribution are still unresolved for many taxa, and occasionally a wide distribution is confirmed. Beania magellanica has been considered a widespread species, distributed throughout the Southern Hemisphere, parts of northern Pacific and Atlantic Oceans and the Mediterranean Sea. This study examines the Magellanic-type material, together with other historic samples and new specimens collected in the western Mediterranean and Adriatic, and for the first time, presents specimens from the European North Atlantic. Morphological comparisons and biometric analysis show the existence of three different species among the specimens studied. A redescription of B. magellanica based on the type specimen is presented, and two new species are described: B. serrata sp. nov. from the Northeast Atlantic and B. mediterranea sp. nov. from the Mediterranean Sea. These results indicate that B. magellanica s.l. is a large complex of species and that most specimens from different parts of the world must be revised.

11.
Zootaxa ; 4434(3): 401-428, 2018 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-30313171

RESUMO

As sessile organisms, bryozoans are among the commonest components of the encrusting communities on hard substrata. On unconsolidated bottoms, benthic animals and their carapaces, including mollusk shells, represent potential surfaces for encrustation. Here we describe the bryozoan fauna growing on disarticulated bivalve shells collected intertidally on Itaparica beach, Todos os Santos Bay, northeast Brazil. We examined a total of 382 valves representing seven species of bivalves, among which we found 82 valves of three bivalve species to be encrusted by bryozoans, with 109 bryozoan colonies detected overall. We identified 11 cheilostome bryozoan species, among which Phidoloporidae and Smittinidae were the most diverse, with four and two species, respectively. We redescribed two bryozoan species, Parasmittina loxoides and Rhynchozoon phrynoglossum, and describe another two, Pleurocodonellina marcusi n. sp. and Rhynchozoon itaparicaensis n. sp., as new. A new combination for Cribella triangulata Canu Bassler, 1928 is proposed, including Calyptotheca tenuata Harmer, 1957 as a new junior subjective synonym of Calyptotheca triangulata n. comb. All but one of the 11 species have encrusting colonies; Licornia aff. diadema, forms erect branching colonies. For seven of the bryozoans, ours are the first records of these species growing on shells. Although the majority of bryozoans we studied have also been reported on other substrata, Rhynchozoon brasiliensis and Parasmittina loxoides were predominant in the fauna, comprising 79 (72%) of all colonies inventoried. Due to the lack of information on the distribution of these species in northeastern Brazil, further studies are needed to determine whether they show any substratum preference.


Assuntos
Briozoários , Animais , Baías , Bivalves , Brasil
12.
Mar Pollut Bull ; 130: 184-191, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29866545

RESUMO

Bryozoa is a phylum of aquatic invertebrates widely distributed around the world, including harbor areas. They have association to artificial structures as main mechanism of dispersal, including ships, which facilitates their introduction to new environments. The detection of exotic species is important to prevent new introductions and to propose management strategies of marine areas. Thus, after analyzing and discussing local and global criteria of exotic species, an account of exotic bryozoans from Brazil is presented, including 12 classified as exotic (six established and six detected) and 17 classified as potentially exotic (cryptogenic). Three species have been reported causing economic or environmental impacts worldwide. Of those, Membraniporopsis tubigera is known to cause economic impacts on the Brazilian coast. Hull fouling is the main dispersal mechanism for exotic bryozoans. The lacking of reliable data did not allow inferring on the exotic status on some fouling bryozoan species in Brazil.


Assuntos
Distribuição Animal , Briozoários , Espécies Introduzidas , Animais , Brasil , Invertebrados , Navios
13.
Zootaxa ; 4097(1): 59-83, 2016 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-27394525

RESUMO

Thirteen cheilostome bryozoan species from intertidal habitats of Maceió, Alagoas State, Brazil, are reported here. We describe four new species: Aetea cultrata n. sp., Biflustra marcusi n. sp., Biflustra sphinx n. sp. and Jellyella brasiliensis n. sp. Two other species of Inovicellina, Aetea arcuata Winston & Hayward, 2012, and Aetea curta Jullien, 1888, and four species of Malacostegina, Arbocuspis bellula (Hincks, 1881), Arbocuspis bicornis (Hincks, 1881), Arbocuspis ramosa (Osburn, 1940), and Jellyella tuberculata (Bosc, 1802), are reported on drift algae. Three species of Thalamoporellina are found for the first time in Maceió, Labioporella tuberculata Winston, Vieira & Woollacoot, 2014, Steginoporella           magnilabris (Busk, 1854) and Thalamoporella floridana Osburn, 1940.


Assuntos
Briozoários/classificação , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Tamanho Corporal , Brasil , Briozoários/anatomia & histologia , Briozoários/crescimento & desenvolvimento , Ecossistema , Feminino , Masculino , Tamanho do Órgão
14.
Zootaxa ; 4013(3): 348-68, 2015 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-26623902

RESUMO

Here we present the taxonomy of the cheilostome genera Adeonellopsis MacGillivray, 1886 and Reptadeonella Busk, 1884 in Brazil. Of the six species previously reported in Brazilian waters, we include redescriptions of Adeonellopsis subsulcata (Smitt, 1873), Reptadeonella bipartita (Canu & Bassler, 1928) and Reptadeonella costulata (Canu & Bassler, 1928). Four new species of Reptadeonella are described: Reptadeonella aspera n. sp., Reptadeonella brasiliensis n. sp. (previously misidentified as Reptadeonella violacea), Reptadeonella cucullata n. sp. and Reptadeonella leilae n. sp. Reptadeonella aspera n. sp., from Bahia State, is characterized by rugose frontal calcification, a tubular peristome, small suboral avicularium and elliptical spiramen. Reptadeonella brasiliensis n. sp. is the commonest intertidal species in NE Brazil; it is distinguished from other Brazilian Reptadeonella in having a nodular peristome, large subperistomial areolar pore and zooids with one or two frontal pores frequently replaced by a suboral avicularium and crescentic spiramen. Reptadeonella cucullata n. sp., from Espírito Santo and Bahia states, has a hood-like peristome, large subperistomial areolar pore, suboral avicularium with curved mandible and denticulate spiramen. Reptadeonella leilae n. sp., described from Bahia State, has a frontal shield with small granules, tubular peristome, semilunar to semicircular subperistomial areolar pore and circular spiramen. Diagnostic characters of Reptadeonella species are discussed.


Assuntos
Briozoários/anatomia & histologia , Briozoários/classificação , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Tamanho Corporal , Brasil , Briozoários/crescimento & desenvolvimento , Tamanho do Órgão
15.
Zootaxa ; 3994(2): 275-82, 2015 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-26250273

RESUMO

Abditoporella dimorpha n. gen. et n. sp. is described from the Pacific coast of Mexico. It was previously misidentified as Odontoporella adpressa (Busk). Abditoporella seems to be morphologically related to Hagiosynodos Bishop & Hayward, 1989 in having a similar orifice and pseudoporous frontal shield, but is distinguished by having dimorphic zooids. A second species, Hippopodinella turrita Osburn, is reassigned to the new genus as Abditoporella turrita n. comb. Abditoporella is included in the Hippoporidridae.


Assuntos
Briozoários/classificação , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Tamanho Corporal , Briozoários/anatomia & histologia , Briozoários/crescimento & desenvolvimento , Ecossistema , Feminino , Masculino , México , Tamanho do Órgão
16.
Zootaxa ; 3889(4): 485-524, 2014 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-25544281

RESUMO

This paper describes 21 ctenostomatous bryozoans from the state of São Paulo, Brazil, based on specimens observed in vivo. A new family, Jebramellidae n. fam., is erected for a newly described genus and species, Jebramella angusta n. gen. et sp. Eleven other species are described as new: Alcyonidium exiguum n. sp., Alcyonidium pulvinatum n. sp., Alcyonidium torquatum n. sp., Alcyonidium vitreum n. sp., Bowerbankia ernsti n. sp., Bowerbankia evelinae n. sp., Bowerbankia mobilis n. sp., Nolella elizae n. sp., Panolicella brasiliensis n. sp., Sundanella rosea n. sp., Victorella araceae n. sp. Taxonomic and ecological notes are also included for nine previously described species: Aeverrillia setigera (Hincks, 1887), Alcyonidium hauffi Marcus, 1939, Alcyonidium polypylum Marcus, 1941, Anguinella palmata van Beneden, 1845, Arachnoidella evelinae (Marcus, 1937), Bantariella firmata (Marcus, 1938) n. comb., Nolella sawayai Marcus, 1938, Nolella stipata Gosse, 1855 and Zoobotryon verticillatum (delle Chiaje, 1822).


Assuntos
Briozoários/classificação , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Tamanho Corporal , Brasil , Briozoários/anatomia & histologia , Briozoários/crescimento & desenvolvimento , Ecossistema , Feminino , Masculino , Tamanho do Órgão
17.
Zootaxa ; 3857(2): 151-82, 2014 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-25283103

RESUMO

Watersipora subtorquata (d'Orbigny, 1852) has been widely reported as a fouling species from tropical to temperate waters. The continued confusion over the correct name for this species led us to provide a redescription of d'Orbigny's type of Cellepora subtorquata, and to make comparisons with other species of Watersipora. We show that the majority of specimens assigned to W. subovoidea (d'Orbigny, 1852) are morphologically distinct from the recently erected neotype of W. subovoidea; these specimens are here reidentified as Watersipora subtorquata. Other specimens previously assigned to W. subtorquata belong to W. subatra (Ortmann, 1890), described originally from Japan. Owing these inconsistences, we suggest setting aside the neotype of Watersipora subovoidea, which is based on Busk's Lepralia cucullata and is not from the same locality as d'Orbigny's type. Watersipora cucullata is redescribed and figured using Busk's specimens; the species is known from the Mediterranean, including the Adriatic. Three other species--Watersipora atrofusca (Busk, 1856), Watersipora aterrima (Ortmann, 1890) and Watersipora nigra (Canu & Bassler, 1930)--are also refigured. Watersipora edmondsoni Soule & Soule, 1975 is synonymised with W. subtorquata (d'Orbigny). Two new species are described, Watersipora mawatarii n. sp. from Japan and Watersipora souleorum n. sp. from the Azores, Cape Verde, Naples and Indian Ocean. A key is given to the Recent species of Watersipora.


Assuntos
Briozoários/classificação , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Tamanho Corporal , Briozoários/anatomia & histologia , Briozoários/crescimento & desenvolvimento , Oceano Índico , Japão , Tamanho do Órgão
18.
Zootaxa ; 3868: 1-61, 2014 Sep 26.
Artigo em Inglês | MEDLINE | ID: mdl-25283785

RESUMO

Colatooeciidae includes the genera Colatooecia, Cigclisula and Trematooecia. While Colatooecia is considered a well-defined genus, the differences between Cigclisula and Trematooecia are poorly defined. This taxonomic review was undertaken to understand the morphological differences between Cigclisula and Trematooecia. The type species of Cigclisula is redescribed and the type species of Trematooecia is designated and redescribed. Diagnostic characters of both genera are redefined. Six new species of Cigclisula and one of Trematooecia are described: Cigclisula australis n. sp., Cigclisula buski n. sp., Cigclisula fistulosa n. sp., Cigclisula osburni n. sp., Cigclisula perforata n. sp., Cigclisula winstonae n. sp. and Trematooecia rotunda n. sp. Four species previously assigned to Cigclisula are transferred to Trematooecia: Trematooecia arborescens (Canu & Bassler, 1928) n. comb., Trematooecia gemmea (Winston & Woollacott, 2009) n. comb., Trematooecia hexagonalis (Canu & Bassler, 1930), and Trematooecia verticalis (Maplestone, 1910) n. comb. Two species previously assigned to Trematooecia are transferred to Cigclisula: Cigclisula turrita (Smitt, 1873) and Cigclisula psammophila(Winston & Håkansson, 1986) n. comb. 


Assuntos
Briozoários/anatomia & histologia , Briozoários/classificação , Animais , Especificidade da Espécie
19.
Zootaxa ; 3780: 365-74, 2014 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-24871841

RESUMO

A new species of cheilostome bryozoan, Fenestrulina commensalis n. sp., was collected in December 2008 by scuba at 5-10 meters depth at Guaibura Beach, Guarapari, Espírito Santo state, southeastern Brazil. The specimen was found associated with tubes of the cerianthid Pachycerianthus sp., representing the first commensal association between a bryozoan and a tube-dwelling anemone. Fenestrulina commensalis n. sp. is the third species of the genus found in Brazilian waters; it is distinguished from other Atlantic species of Fenestrulina by its small angular orificial condyles, a single oral spine and basal anchoring rhizoids arising from abfrontal pore chambers. Morphological adaptations to encrust the tubes of cerianthids include anchoring rootlets and weakly contiguous zooids. These morphological features allow the colony the flexibility to grow around the tube and feed relatively undisturbed by silt and detritus, being raised well above the soft-sediment substratum in which the tube-anemone grows.


Assuntos
Briozoários/classificação , Cnidários/fisiologia , Distribuição Animal , Estruturas Animais/anatomia & histologia , Animais , Oceano Atlântico , Brasil , Briozoários/anatomia & histologia , Briozoários/fisiologia , Simbiose
20.
PLoS One ; 9(4): e95296, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24747915

RESUMO

The bryozoan genus Scrupocellaria comprises about 80 species in the family Candidae. We propose a hypothesis for the phylogenetic relationships among species assigned to Scrupocellaria to serve as framework for a phylogenetic classification using 35 morphological characters. Our results suggest that the genus Scrupocellaria is polyphyletic. Scrupocellaria s. str. is redefined according to four morphological features: vibracular chamber with a curved setal groove, ooecium with a single ectooecial fenestra, two axillary vibracula, and a membranous operculum with a distinct distal rim. Thus, the genus includes only 11 species: Scrupocellaria aegeensis, Scrupocellaria delilii, Scrupocellaria harmeri, Scrupocellaria incurvata, Scrupocellaria inermis, Scrupocellaria intermedia, Scrupocellaria jullieni, Scrupocellaria minuta, Scrupocellaria puelcha, Scrupocellaria scrupea, and Scrupocellaria scruposa. The monophyly of Cradoscrupocellaria is supported and five new genera are erected: Aquiloniella n. gen., Aspiscellaria n. gen., Paralicornia n. gen., Pomocellaria n. gen. and Scrupocaberea n. gen. Two other new genera, Bathycellaria n. gen. and Sinocellaria n. gen., are erected to accommodate two poorly known species, Scrupocellaria profundis Osburn and Scrupocellaria uniseriata Liu, respectively. Scrupocellaria congesta is tentatively assigned to Tricellaria. Fifteen species are reassigned to Licornia: Licornia cookie n. comb., Licornia micheli n. comb., Licornia milneri n. comb., Licornia curvata n. comb., Licornia diegensis n. comb., Licornia drachi n. comb., Licornia mexicana n. comb., Licornia pugnax n. comb., Licornia raigadensis n. comb., Licornia regularis n. comb., Licornia resseri n. comb., Licornia securifera n. comb., Licornia spinigera n. comb., Licornia tridentata n. comb., and Licornia wasinensis n. comb. Notoplites americanus n. name is proposed as a replacement name for Scrupocellaria clausa Canu & Bassler. Three fossil species are reassigned to Canda: Canda rathbuni n. comb., Canda triangulata n. comb. and Canda williardi n. comb. A species is reassigned to Notoplites, Notoplites elegantissima n. comb. The generic assignment of eleven species of Scrupocellaria, including Scrupocellaria macandrei, remains uncertain.


Assuntos
Briozoários/classificação , Filogenia , Animais , Briozoários/genética , Especificidade da Espécie
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...