Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 6 de 6
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Zootaxa ; 4565(3): zootaxa.4565.3.2, 2019 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-31716462

RESUMO

Indobathynella socrates n. sp. is described from Karaiguda Cave in the Visakhapatnam District of Andhra Pradesh state, south-eastern India. This is the first cavernicolous species of Indobathynella, which is incidentally the most reduced genus in the family Bathynellidae as a whole. The type species of this genus, Indobathynella prehensilis, is from a farm bore. The new species fulfils all the principal generic criteria of Indobathynella, but is distinctly different from I. prehensilis in several essential features: absence of subapical seta on antennary exopod; 4 claws on distal maxillulary endite; 6 teeth on mandibular gnathobase, and uropodal exopod without ventro-medial seta. These and all other salient differences between the two species are tabulated. Besides providing brief notes on conservation and biogeography of the new species, a key to all the known Indian taxa of Bathynellidae is given for the first time.


Assuntos
Crustáceos , Animais , Índia
2.
Zootaxa ; 4508(3): 403-426, 2018 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-30485984

RESUMO

Stygofaunistic surveys of peninsular India yielded, among others, three new cavernicolous amphipod taxa: Orientogidiella reducta gen. n., sp. n. in the Borra caves of Andhra Pradesh state, Bogidiella hindustanica sp. n. (Bogidiellidae) and Indoniphargus subterraneus sp. n. (Austroniphargidae) in the Kapiladevi caves of Telangana state. The new genus, Orientogidiella gen. n., is proposed to accommodate all the hitherto known species of the Bogidiella indica-group. This paper gives an illustrated description of the three new species together with their taxonomic affinities. A new record of O. indica comb. n., from the Guthikonda caves in Andhra Pradesh is provided as well. The structure of the Indoniphargus mandible is revisited with scanning electron microscopy (SEM) and revealed a poorly known flexible structure on the molar process which could be useful for phylogenetic purposes. The species diversity and geographic distribution of the Indian stygobiotic amphipods are briefly reviewed.


Assuntos
Anfípodes , Filogenia , Animais , Água Subterrânea , Índia
3.
Zootaxa ; 4492(1): 1-72, 2018 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-30313724

RESUMO

The genus Habrobathynella Schminke, 1973 contains 16 species, 2 from Madagascar and 14 from the peninsular India. This is a remarkably species-rich genus when compared to the three other genera of the family Parabathynellidae known from India: Atopobathynella Schminke, 1973 (5 spp.), Chilibathynella Noodt, 1964 (1 sp.), and Parvulobathynella Schminke, 1973 (3 spp.). This paper provides a monographic treatment of Habrobathynella together with a detailed illustrated account of three new cavernicolous species, viz. Habrobathynella bose n. sp., Habrobathynella ernstmayr n. sp. and Habrobathynella raman n. sp., from the States of Andhra Pradesh and Telangana, India. For each of the already described species, the following details are provided: reference to original description, diagnosis, type data, type locality, distribution, ecology, co-occurrence with other species and remarks on taxonomic affinity. Distribution maps and a dichotomous key for identification of all species in Habrobathynella are provided. We also include a brief note on the biogeography and conservation status of the Indian bathynellaceans.


Assuntos
Crustáceos , Ecologia , Animais , Índia , Madagáscar
4.
Zootaxa ; 4150(2): 149-67, 2016 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-27515652

RESUMO

The genus Habrobathynella Schminke, 1973, comprises 14 species: two from Madagascar and 12 from the peninsular India. Two more new hyporheic species of this genus, viz. H. muvattupuzha n. sp. and H. adishankara n. sp., from the southwestern peninsular India, are described and illustrated, and their position in the genus is discussed. Both new species are more closely related to each other than to their hitherto known congeners. H. muvattupuzha n. sp. has a unique combination of characters: male Th VIII small in size, with protopod distinctly expanded latero-externally, and basipod balloon-shaped; uropodal sympod with inhomonomous row of five spines, with penultimate spine longer and thicker than others, and ultimate spine same as proximal spines; paragnaths with minaret-like smooth coupler and short lateral lobes; fifth antennular segment with only two long aesthetascs; and first maxillary segment with two setae. H. adishankara n. sp. is distinct from its congeners in having a unique set of characters: uropodal sympod with inhomonomous row of six spines, with penultimate and ultimate spines as in the preceding species; paragnaths with thumb-like, smooth coupler and small lateral lobes; first antennary segment nearly as long as the second one; fifth antennular segment with three long aesthetascs; and first maxillary segment with one seta. The principal morphological characters and their states among the Habrobathynella species, with special reference to the new species, are briefly discussed. Also, brief notes on the ecology and biogeography are given, as is an updated key to Habrobathynella species.


Assuntos
Crustáceos/anatomia & histologia , Crustáceos/classificação , Distribuição Animal , Animais , Feminino , Índia , Oceano Índico , Madagáscar , Masculino
5.
Zootaxa ; 4066(2): 125-51, 2016 Jan 14.
Artigo em Inglês | MEDLINE | ID: mdl-27395539

RESUMO

To date, 20 species of Parastenocarididae are known from the Indian subcontinent. This paper gives the description of two more new species from the coastal deltaic belt of the Rivers Krishna and Godavari in the Andhra Pradesh state of the southeastern Indian peninsula. They are: Parastenocaris enckelli n. sp. from a hyporheic habitat, and Dussartstenocaris bisetosa n. sp. from a farm bore. Parastenocaris enckelli belongs to the brevipes-group of the genus Parastenocaris Kessler, 1913 sensu Lang 1948 and Reid 1995, and is characterized by the following features: the male leg 4 basal complex consists of a large chitinized plate, with two digitiform hyaline structures at its proximal outer corner of the anterior surface, and one smooth, moderately strong, claw-like spine at the inner distal corner of basis; the endopod of the same leg is membranous, with bulbous proximal part having a diagonal row of three spinules, and its distal part is drawn out into smooth pointed structure; and the male leg 3 ancestral proximal segment is subproximally dilated, elongate, with ladle-shaped apophysis, which is slightly longer than the spiniform thumb. Parastenocaris enckelli is closely related to the Indian P. edakkal Totakura, Ranga Reddy & Shaik, 2014, and the Sri Lankan P. brincki Enckell, 1970. To accommodate Dussartstenocaris bisetosa in the monotypic Western Australian genus Dussartstenocaris Karanovic & Cooper, 2011, three of the original generic criteria are amended. D. bisetosa is chiefly characterized by the complex exopodal thumb on the male leg 3, the caudal ramus having only two lateral setae located slightly anterior to its midlength together with the distally inserted dorsal seta, and also the presence of a short spiniform process at the inner distal corner of leg 5 in both sexes. Dussartstenocaris bisetosa differs from D. idioxenos Karanovic & Cooper, 2011, by its shorter caudal rami, distinctly ornamented anal somite, two long modified spinules on the male leg 4 coxa, and rather small fifth legs with only two setae each in both sexes and smooth inner margins. This is the first report of the genus Dussartstenocaris from the Indian subcontinent. Brief biogeographic notes are also given for the two new species.


Assuntos
Copépodes/classificação , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Tamanho Corporal , Copépodes/anatomia & histologia , Copépodes/crescimento & desenvolvimento , Ecossistema , Feminino , Índia , Masculino , Tamanho do Órgão
6.
Zootaxa ; 3821(5): 501-37, 2014 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-24989764

RESUMO

To date, only 16 species of the very diverse family Parastenocarididae have been reported from the Indian subcontinent. This paper gives an illustrated description of three new species, viz. Parastenocaris edakkal n. sp., Proserpinicaris corgosinhoi n. sp., and Proserpinicaris karanovici n. sp., and discusses their position in the respective genera. While the first two species were found sympatrically in the Edakkal Cave in Kerala State of southwestern India, the third one was collected from a farm bore in the riparian zone of the River Krishna in Andhra Pradesh State of southeastern India. The Palaearctic genus Proserpinicaris Jakobi, 1972 sensu Karanovic, Cho & Lee, 2012, is being reported for the first time from India. Parastenocaris edakkal n. sp. belongs to the brevipes-group of the genus Parastenocaris Kessler, 1913 sensu Lang, 1948 et Reid, 1995. It is chiefly characterized by the male leg 4 basal chitinous complex consisting of one large sclerotized plate together with two small accessory lobes, and one strong, hook-like spine at the inner distal corner, and the endopod is membranous and ventricose in outline, with bulbous proximal part drawn out distally into biserrulate, pointed structure. Proserpinicaris corgosinhoi n. sp. can be easily separated from its congeners, inter alia, by the short caudal rami (c.1.2-1.4 times as long as wide), bearing 2 unequal lateral setae (I, III) inserted proximally; male leg 3 proximal segment is stumpy and has one prominent tubular pore on proximal anterior surface; and leg 4 endopod is short, membranous and somewhat conical, and the hyaline structure is relatively large, foliaceous and lies rather close to endopod. Proserpinicaris karanovici n. sp. has its own unique set of characters, of which the following are noteworthy: the caudal rami in both sexes are about 2.6 times as long as wide, gradually tapering, with only 2 lateral setae inserted in proximal half; and the male leg 4 endopod is nearly as long as first exopodal segment, membranous, with lateral margins fringed with tiny spinules, and the hyaline structure is short, leaf-like and occurring close to, and overlapping, the endopod. 


Assuntos
Copépodes/classificação , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Tamanho Corporal , Copépodes/anatomia & histologia , Copépodes/crescimento & desenvolvimento , Feminino , Índia , Masculino , Tamanho do Órgão
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA