Validation of Chronocancer camilosantanai† Santana, Tavares, Martins, Melo & Pinheiro (Crustacea, Decapoda, Brachyura) from the Romualdo Formation, Araripe Sedimentary Basin, Brazil

Santana et al. (2022) described a new genus and species of fossil crab, Chronocancer camilosantanai, from carbonate concretions of the Romualdo Formation of the Araripe Sedimentary Basin. The journal in which the description appeared was published online only and the new name did not include a ZooBank registration number (LSID), as required for validation of new names in electronic-only publications. The present note serves to validate the name Chronocancer camilosantanai by fulfilling the ICZN conditions for nomenclatural availability. The date and authorship of the specific name, accordingly, are those of this note, not Santana et al. (2022).(AU)

Tuleariocaris neglecta Chace, 1969 (Crustacea: Caridea: Palaemonidae) associated with the sea urchin Astropyga magnifica Clark, 1934 (Echinoidea: Diadematidae) in the Alcatraz Archipelago, southeastern Brazil

The caridean shrimp Tuleariocaris neglecta Chace, 1969, is reported from the Alcatraz Archipelago (24°S, off the coast of southeastern Brazil) in association with the sea urchin Astropyga magnifica Clark, 1934. This finding significantly increases the known range of this species from 20°S to 24°S. An overview of the species in Tuleariocaris with their respective associated host sea urchins is provided.(AU)

An annotated catalogue of Echinodermata types in the Museu de Zoologia, Universidade de São Paulo, Brazil

The types of nominal species of Echinodermata in the collection of the Museu de Zoologia, Universidade de São Paulo are catalogued: Holothuroidea (19 species ­ 16 holotypes, 1 paratype and 2 neotypes) and Ophiuroidea (4 species ­ 1 neotype and 3 paratypes). Photographs of all the type specimens are given. A brief account of the history of the MZUSP's echinoderm collections is presented.(AU)

First record and a new species of Euphrosynoplax (Crustacea: Pseudorhombilidae) from the southwestern Atlantic

Abstract A new species of deep-water brachyuran crab, Euphrosynoplax dincao, from southeastern Brazil is described and illustrated. The genus Euphrosynoplax currently consists of two species, E. clausaGuinot, 1969, and E. campechiensisVázquez-Bader & Gracia, 1991, both only known from the Gulf of Mexico. The new species can be easily separated from its northern counterparts by a suite of carapace and appendage characters. Euphrosynoplax campechiensis is recorded for the first time from the Caribbenan Sea (Guadeloupe and between Saint Kitts and Nevis).

First record and a new species of Euphrosynoplax (Crustacea: Pseudorhombilidae) from the southwestern Atlantic

Abstract A new species of deep-water brachyuran crab, Euphrosynoplax dincao, from southeastern Brazil is described and illustrated. The genus Euphrosynoplax currently consists of two species, E. clausaGuinot, 1969, and E. campechiensisVázquez-Bader & Gracia, 1991, both only known from the Gulf of Mexico. The new species can be easily separated from its northern counterparts by a suite of carapace and appendage characters. Euphrosynoplax campechiensis is recorded for the first time from the Caribbenan Sea (Guadeloupe and between Saint Kitts and Nevis).

First record and a new species of Euphrosynoplax(Crustacea: Pseudorhombilidae) from the southwestern Atlantic

A new species of deep-water brachyuran crab, Euphrosynoplax dincao, from southeastern Brazil is described and illustrated. The genus Euphrosynoplax currently consists of two species, E. clausa Guinot, 1969, and E. campechiensis Vázquez-Bader & Gracia, 1991, both only known from the Gulf of Mexico. The new species can be easily separated from its northern counterparts by a suite of carapace and appendage characters. Euphrosynoplax campechiensis is recorded for the first time from the Caribbenan Sea (Guadeloupe and between Saint Kitts and Nevis).(AU)

A new species of Gammarus Fabricius, 1775 (Crustacea: Amphipoda: Gammaridae) from extreme high-altitude Lake Tong Tso, Qinghai-Tibetan Plateau

Abstract A new species of the genus Gammarus Fabricius, 1775 is described from Lake Tong Tso, an extreme high-altitude lake in the Qinghai-Tibetan Plateau. Gammarus pontual sp. nov. is considered part of the Gammarus lacustris G.O. Sars, 1863 group, which is characterized by having the inner ramus of uropod 3 longer than half the length of the outer ramus, and by having both rami covered with plumose setae. The new species stands apart from their congeners, mainly, by the following combination of characters: head with cephalic lateral lobe truncated; gnathopods 1-2 propodus weakly armed, with 1 stout seta defining palm; palm longer than posterior margin of propodus, with 1 main stout seta medially; pereopods 5-7 basis slender, posterior margin crenulate; epimeral plate 1 posterior margin produced into a short spine, facial ridge present; epimeral plates 2-3 posteroventral corner sharply pointed; uropod 3 rami covered with plumose setae, inner ramus about 80% the length of the outer ramus; telson apex with 2 stout setae on each side.

A new species of Gammarus Fabricius, 1775 (Crustacea Amphipoda Gammaridae) from extreme high altitude Lake Tong Tso, Qinghai Tibetan Plateau

A new species of the genus Gammarus Fabricius, 1775 is described from Lake Tong Tso, an extreme high-altitude lake in the Qinghai-Tibetan Plateau. Gammarus pontualsp. nov. is considered part of the Gammarus lacustris G.O. Sars, 1863 group, which is characterized by having the inner ramus of uropod 3 longer than half the length of the outer ramus, and by having both rami covered with plumose setae. The new species stands apart from their congeners, mainly, by the following combination of characters: head with cephalic lateral lobe truncated; gnathopods 1-2 propodus weakly armed, with 1 stout seta defining palm; palm longer than posterior margin of propodus, with 1 main stout seta medially; pereopods 5-7 basis slender, posterior margin crenulate; epimeral plate 1 posterior margin produced into a short spine, facial ridge present; epimeral plates 2-3 posteroventral corner sharply pointed; uropod 3 rami covered with plumose setae, inner ramus about 80% the length of the outer ramus; telson apex with 2 stout setae on each side.(AU)

A new species of Gammarus Fabricius, 1775 (Crustacea: Amphipoda: Gammaridae) from extreme high-altitude Lake Tong Tso, Qinghai-Tibetan Plateau

Abstract A new species of the genus Gammarus Fabricius, 1775 is described from Lake Tong Tso, an extreme high-altitude lake in the Qinghai-Tibetan Plateau. Gammarus pontual sp. nov. is considered part of the Gammarus lacustris G.O. Sars, 1863 group, which is characterized by having the inner ramus of uropod 3 longer than half the length of the outer ramus, and by having both rami covered with plumose setae. The new species stands apart from their congeners, mainly, by the following combination of characters: head with cephalic lateral lobe truncated; gnathopods 1-2 propodus weakly armed, with 1 stout seta defining palm; palm longer than posterior margin of propodus, with 1 main stout seta medially; pereopods 5-7 basis slender, posterior margin crenulate; epimeral plate 1 posterior margin produced into a short spine, facial ridge present; epimeral plates 2-3 posteroventral corner sharply pointed; uropod 3 rami covered with plumose setae, inner ramus about 80% the length of the outer ramus; telson apex with 2 stout setae on each side.

Pisidia longimana (Risso, 1816), a junior synonym of P. bluteli (Risso, 1816) (Crustacea: Decapoda: Anomura: Porcellanidae) and a species distinct from P. longicornis (Linnaeus, 1767)

Pisidia longimana (Risso, 1816) and P. bluteli (Risso, 1816), both described from Nice, France, have been considered each other’s synonyms or have been validated depending on successive taxonomic opinions. The validity of both in respect to P. longicornis (Linnaeus, 1767) has also been contradicted a number of times. The current lack of clarity in the use of the names P. longicornis, P. longimana and P. bluteli has resulted in nomenclatural instability, but also in unreliability and miscommunication as regards the available ecological and distributional information. The validity of P. bluteli and P. longimana is revisited herein based on a large number of specimens (241 males, 190 females and 33 juveniles) from many different localities. The latter species is confirmed as a junior synonym of the former, whereas P. bluteli and P. longicornis are herein considered separate species. Diagnostic characters and morphological variations are discussed and illustrated.

Yet another record of Scylla serrata Forsskal, 1775 (Crustacea: Decapoda: Portunidae) from the western Atlantic

The Indo-Pacific edible swimming crab Scylla serrata is reported here for the fifth time from the western Atlantic including a failed attempt of introduction to Florida for aquaculture purposes in the years 1960’s. The species had been recorded from Brazil in the early 1980’s and in 2011 and from the Caribbean coast of Colombia in 2013. The capture of a third specimen in southeastern Brazil on 24 August 2020 is discussed here. On all occasions individuals found in Brazil were adults captured alive near port areas. The occurrence of S. serrata in disparate time periods in the western Atlantic (1983, 2011, 2013 and 2020) is regarded as an indication of low inoculation pressure.

Pisidia longimana ( ), a junior synonym of P. bluteli ( ) (Crustacea: Decapoda: Anomura: Porcellanidae) and a species distinct from P. longicornis ( )

Abstract Pisidia longimana (Risso, 1816) and P. bluteli (Risso, 1816), both described from Nice, France, have been considered each others synonyms or have been validated depending on successive taxonomic opinions. The validity of both in respect to P. longicornis (Linnaeus, 1767) has also been contradicted a number of times. The current lack of clarity in the use of the names P. longicornis, P. longimana and P. bluteli has resulted in nomenclatural instability, but also in unreliability and miscommunication as regards the available ecological and distributional information. The validity of P. bluteli and P. longimana is revisited herein based on a large number of specimens (241 males, 190 females and 33 juveniles) from many different localities. The latter species is confirmed as a junior synonym of the former, whereas P. bluteli and P. longicornis are herein considered separate species. Diagnostic characters and morphological variations are discussed and illustrated.

Yet another record of Scylla serrata Forsskål, 1775 (Crustacea: Decapoda: Portunidae) from the western Atlantic

Abstract The Indo-Pacific edible swimming crab Scylla serrata is reported here for the fifth time from the western Atlantic including a failed attempt of introduction to Florida for aquaculture purposes in the years 1960s. The species had been recorded from Brazil in the early 1980s and in 2011 and from the Caribbean coast of Colombia in 2013. The capture of a third specimen in southeastern Brazil on 24 August 2020 is discussed here. On all occasions individuals found in Brazil were adults captured alive near port areas. The occurrence of S. serrata in disparate time periods in the western Atlantic (1983, 2011, 2013 and 2020) is regarded as an indication of low inoculation pressure.

Pisidia longimana (Risso, 1816), a junior synonym of P. bluteli (Risso, 1816) (Crustacea: Decapoda: Anomura: Porcellanidae) and a species distinct from P. longicornis (Linnaeus, 1767)

Pisidia longimana (Risso, 1816) and P. bluteli (Risso, 1816), both described from Nice, France, have been considered each others synonyms or have been validated depending on successive taxonomic opinions. The validity of both in respect to P. longicornis (Linnaeus, 1767) has also been contradicted a number of times. The current lack of clarity in the use of the names P. longicornis, P. longimana and P. bluteli has resulted in nomenclatural instability, but also in unreliability and miscommunication as regards the available ecological and distributional information. The validity of P. bluteli and P. longimana is revisited herein based on a large number of specimens (241 males, 190 females and 33 juveniles) from many different localities. The latter species is confirmed as a junior synonym of the former, whereas P. bluteli and P. longicornis are herein considered separate species. Diagnostic characters and morphological variations are discussed and illustrated.(AU)

Yet another record of Scylla serrata Forsskal, 1775 (Crustacea: Decapoda: Portunidae) from the western Atlantic

The Indo-Pacific edible swimming crab Scylla serrata is reported here for the fifth time from the western Atlantic including a failed attempt of introduction to Florida for aquaculture purposes in the years 1960s. The species had been recorded from Brazil in the early 1980s and in 2011 and from the Caribbean coast of Colombia in 2013. The capture of a third specimen in southeastern Brazil on 24 August 2020 is discussed here. On all occasions individuals found in Brazil were adults captured alive near port areas. The occurrence of S. serrata in disparate time periods in the western Atlantic (1983, 2011, 2013 and 2020) is regarded as an indication of low inoculation pressure.(AU)

Desenvolvimento de amendoim submetido a adubação fosfatada e potássica e diferentes espaçamento entre plantas / Development of peanuts subjected to phosphate and potassium fertilization and different plant spacing

Objetivou-se avaliar o cultivo de amendoim em função da adubação fosfatada e potássica na semeadura e do espaçamento entre plantas, em regime de sequeiro e irrigação por gotejamento no Cariri-CE. Foi utilizado o delineamento experimental em bloco ao acaso, em esquema de parcela subdividida com quatro repetições. As parcelas foram constituídas pelas doses de adubação com K e P de semeadura (0, 50, 100 e 150% da dose recomendada) e as subparcelas por dois espaçamentos entre plantas (10 e 20 cm). As variáveis avaliadas foram população inicial, população final, altura da planta, massa de grãos por planta, número de vagens por planta, massa de vagens por planta, massa de grãos por vagens, massa de1000 grãos e massa de 100 vagens, produtividade de vagens, produtividade de grãos e porcentagem de grãos não comerciais. Os resultados demonstraram que o sistema sequeiro e irrigação influenciaram na produção do amendoim e a adubação no número vagens e a massa de vagens por planta foram significativas obtendo o ponto de máxima nas doses de 82,58 e 80,37%, respectivamente. O espaçamento de 20 cm ampliou a produtividade de grãos por plantas e a massa de 1000 grãos em 10,77% e 14,8% respectivamente.

The objective of this study was to evaluate the cultivation of peanuts as a function of phosphate and potassium fertilization in sowing and spacing between plants, in dry land and drip irrigation in Cariri-CE. A randomized block design was used in a split-plot scheme with four replications. The plots consisted of the fertilization doses with K and P of sowing (0,50, 100 and 150% of the recommended dose) and the subplots by two spacings between plants (10 and 20cm). The variables evaluated were initial population, final population, plant height, grain mass per plant, number of pods per plant, pod mass per plant, grain mass per pods, mass of 1000 grains and mass of 100 pods, pod yield, grain yield and percentage of non-commercial grains. The results showed that the dry sequeiro and irrigation system influenced the production of peanuts and fertilization in the number of pods and the mass of pods per plant were significant, obtaining the maximum point at doses of 82.58 and 80.37%, respectively. The spacing of 20 cm increased grain yield by plants and the mass of 1000 grains by 10.77% and 14.8%, respectively.

Desenvolvimento de amendoim submetido a adubação fosfatada e potássica e diferentes espaçamento entre plantas / Development of peanuts subjected to phosphate and potassium fertilization and different plant spacing

Objetivou-se avaliar o cultivo de amendoim em função da adubação fosfatada e potássica na semeadura e do espaçamento entre plantas, em regime de sequeiro e irrigação por gotejamento no Cariri-CE. Foi utilizado o delineamento experimental em bloco ao acaso, em esquema de parcela subdividida com quatro repetições. As parcelas foram constituídas pelas doses de adubação com K e P de semeadura (0, 50, 100 e 150% da dose recomendada) e as subparcelas por dois espaçamentos entre plantas (10 e 20 cm). As variáveis avaliadas foram população inicial, população final, altura da planta, massa de grãos por planta, número de vagens por planta, massa de vagens por planta, massa de grãos por vagens, massa de1000 grãos e massa de 100 vagens, produtividade de vagens, produtividade de grãos e porcentagem de grãos não comerciais. Os resultados demonstraram que o sistema sequeiro e irrigação influenciaram na produção do amendoim e a adubação no número vagens e a massa de vagens por planta foram significativas obtendo o ponto de máxima nas doses de 82,58 e 80,37%, respectivamente. O espaçamento de 20 cm ampliou a produtividade de grãos por plantas e a massa de 1000 grãos em 10,77% e 14,8% respectivamente.(AU)

The objective of this study was to evaluate the cultivation of peanuts as a function of phosphate and potassium fertilization in sowing and spacing between plants, in dry land and drip irrigation in Cariri-CE. A randomized block design was used in a split-plot scheme with four replications. The plots consisted of the fertilization doses with K and P of sowing (0,50, 100 and 150% of the recommended dose) and the subplots by two spacings between plants (10 and 20cm). The variables evaluated were initial population, final population, plant height, grain mass per plant, number of pods per plant, pod mass per plant, grain mass per pods, mass of 1000 grains and mass of 100 pods, pod yield, grain yield and percentage of non-commercial grains. The results showed that the dry sequeiro and irrigation system influenced the production of peanuts and fertilization in the number of pods and the mass of pods per plant were significant, obtaining the maximum point at doses of 82.58 and 80.37%, respectively. The spacing of 20 cm increased grain yield by plants and the mass of 1000 grains by 10.77% and 14.8%, respectively.(AU)

First record of the genus Eumunida Smith, 1883 (Crustacea, Decapoda, Eumunididae) from the southwestern Atlantic, with the description of a new species

Eumunida picta Smith, 1883, was considered for over a century an amphi-Atlantic species and the only representative of the genus in the Atlantic Ocean, until being split into three species: E. picta sensu stricto (from the northwestern Atlantic), E. bella de Saint Laurent & Macpherson, 1990 and E. squamifera de Saint Laurent & Macpherson, 1990 (from the northeastern and southeastern Atlantic, respectively). Eumunida is now expanded to include a new species, E. notialis, from off the Brazilian coast. Hence, this is the first record of Eumunida and Eumunididae from the southwestern Atlantic. The new species differs from all its Atlantic counterparts in having (1) four hepatic spines; (2) two carapace inframarginal spines; (3) the distal end of the antennal acicle nearly reaching to the articulation between fourth and fifth antennal segments; and (4) the anterolateral spine of the second pleonal tergite obsolete.

First record of the genus Eumunida Smith, 1883 (Crustacea, Decapoda, Eumunididae) from the southwestern Atlantic, with the description of a new species

Eumunida picta Smith, 1883, was considered for over a century an amphi-Atlantic species and the only representative of the genus in the Atlantic Ocean, until being split into three species: E. picta sensu stricto (from the northwestern Atlantic), E. bella de Saint Laurent & Macpherson, 1990 and E. squamifera de Saint Laurent & Macpherson, 1990 (from the northeastern and southeastern Atlantic, respectively). Eumunida is now expanded to include a new species, E. notialis, from off the Brazilian coast. Hence, this is the first record of Eumunida and Eumunididae from the southwestern Atlantic. The new species differs from all its Atlantic counterparts in having (1) four hepatic spines; (2) two carapace inframarginal spines; (3) the distal end of the antennal acicle nearly reaching to the articulation between fourth and fifth antennal segments; and (4) the anterolateral spine of the second pleonal tergite obsolete.(AU)

On the identity of Porcellana paivacarvalhoi Rodrigues da Costa, 1968 (Crustacea: Anomura: Porcellanidae)

Porcellana paivacarvalhoi Rodrigues da Costa, 1968, described from southeastern Brazil (São Sebastião, São Paulo), is morphologically similar to the eastern Atlantic P. platycheles (Pennant, 1777), and also to the west African P. africana Chace, 1956. The synonymy between P. paivacarvalhoi and P. platycheles was proposed by previous authors without examination of any specimens of P. platycheles, nor did they considered the morphological similarities between P. paivacarvalhoi and P. africana. This synonymy has been implicitly accepted without further analysis. The recent discovery of one male and two females syntypes of P. paivacarvalhoi has prompted new investigations into the status of P. paivacarvalhoi as a junior synonym either of P. platycheles or P. africana. Porcellana paivacarvalhoi is redescribed and illustrated based upon its lectotype herein designated. It is confirmed to be a junior synonym of P. platycheles; all evidence suggests that P. africana is a distinct, separate species. All previous records of P. platycheles from the Brazilian coast are reviewed. Its presence in southeastern Brazil in the late 1960’s most probably represents an historical case of human-mediated introduction by shipping activities. Porcellana platycheles did not manage to establish itself in São Sebastião, nor has it been recorded subsequently elsewhere in Brazil.