On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)

The adult male and female of Diastylis granulata Zimmer, 1921 are herein described on the basis of specimens collected near its type locality. This species was previously known from a single subadult male collected south of the Río de la Plata mouth (Argentina) during the Swedish Eugenie Expedition...

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Autor principal: Roccatagliata, Daniel Carlos
Publicado: 2007
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v41_n41-44_p2621_Moretti
http://hdl.handle.net/20.500.12110/paper_00222933_v41_n41-44_p2621_Moretti
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spelling paper:paper_00222933_v41_n41-44_p2621_Moretti2023-06-08T14:49:00Z On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae) Roccatagliata, Daniel Carlos Argentina Chile Cumacea Diastylis argentata Diastylis granulata crustacean morphology new species taxonomy Chile Los Lagos Puerto Montt Rio de la Plata South America Crustacea Cumacea Diastylidae Diastylis The adult male and female of Diastylis granulata Zimmer, 1921 are herein described on the basis of specimens collected near its type locality. This species was previously known from a single subadult male collected south of the Río de la Plata mouth (Argentina) during the Swedish Eugenie Expedition (1851-53), and has not been reported again since its original description. An allied species, Diastylis argentata Calman, 1912, is briefly redescribed and its northern limit of distribution extended to Puerto Montt (Chile). These two species can be easily distinguished by the arrangement of their carapace sculptures: D. granulata bears an arched row of teeth that ends on each anterolateral horn, whereas in D. argentata this row of teeth extends backwards without reaching the anterolateral horn. SEM photographs showing the carapace sculpturing of these two species are provided. © 2007 Taylor & Francis. Fil:Roccatagliata, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v41_n41-44_p2621_Moretti http://hdl.handle.net/20.500.12110/paper_00222933_v41_n41-44_p2621_Moretti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Chile
Cumacea
Diastylis argentata
Diastylis granulata
crustacean
morphology
new species
taxonomy
Chile
Los Lagos
Puerto Montt
Rio de la Plata
South America
Crustacea
Cumacea
Diastylidae
Diastylis
spellingShingle Argentina
Chile
Cumacea
Diastylis argentata
Diastylis granulata
crustacean
morphology
new species
taxonomy
Chile
Los Lagos
Puerto Montt
Rio de la Plata
South America
Crustacea
Cumacea
Diastylidae
Diastylis
Roccatagliata, Daniel Carlos
On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)
topic_facet Argentina
Chile
Cumacea
Diastylis argentata
Diastylis granulata
crustacean
morphology
new species
taxonomy
Chile
Los Lagos
Puerto Montt
Rio de la Plata
South America
Crustacea
Cumacea
Diastylidae
Diastylis
description The adult male and female of Diastylis granulata Zimmer, 1921 are herein described on the basis of specimens collected near its type locality. This species was previously known from a single subadult male collected south of the Río de la Plata mouth (Argentina) during the Swedish Eugenie Expedition (1851-53), and has not been reported again since its original description. An allied species, Diastylis argentata Calman, 1912, is briefly redescribed and its northern limit of distribution extended to Puerto Montt (Chile). These two species can be easily distinguished by the arrangement of their carapace sculptures: D. granulata bears an arched row of teeth that ends on each anterolateral horn, whereas in D. argentata this row of teeth extends backwards without reaching the anterolateral horn. SEM photographs showing the carapace sculpturing of these two species are provided. © 2007 Taylor & Francis.
author Roccatagliata, Daniel Carlos
author_facet Roccatagliata, Daniel Carlos
author_sort Roccatagliata, Daniel Carlos
title On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)
title_short On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)
title_full On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)
title_fullStr On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)
title_full_unstemmed On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)
title_sort on two allied species of the genus diastylis from southern south america: d. granulata zimmer, 1921 and d. argentata calman, 1912 (crustacea: cumacea: diastylidae)
publishDate 2007
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v41_n41-44_p2621_Moretti
http://hdl.handle.net/20.500.12110/paper_00222933_v41_n41-44_p2621_Moretti
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