Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America

A new cumacean from the southwestern Atlantic, Diastylis fabrizioi, is fully described. This species is closely allied to Diastylis planifrons Calman, 1912, whose description is also completed. D. fabrizioi n. sp. can be easily distinguished from D. planifrons by having: (1) a wide pentagonal figure...

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Detalles Bibliográficos
Autores principales:	Alberico, Natalia Andrea, Roccatagliata, Daniel Carlos
Publicado:	2008
Materias:	Cryptoniscus larvae Cumacea Diastylis Nicothoid copepods South America crustacean morphology new species taxonomy Copepoda Crustacea Diastylidae Epicaridea Isopoda Nicothoidae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v42_n13-14_p1039_Alberico http://hdl.handle.net/20.500.12110/paper_00222933_v42_n13-14_p1039_Alberico
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00222933_v42_n13-14_p1039_Alberico
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spelling	paper:paper_00222933_v42_n13-14_p1039_Alberico2023-06-08T14:49:01Z Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America Alberico, Natalia Andrea Roccatagliata, Daniel Carlos Cryptoniscus larvae Cumacea Diastylis Nicothoid copepods South America crustacean morphology new species taxonomy South America Copepoda Crustacea Cumacea Diastylidae Diastylis Epicaridea Isopoda Nicothoidae A new cumacean from the southwestern Atlantic, Diastylis fabrizioi, is fully described. This species is closely allied to Diastylis planifrons Calman, 1912, whose description is also completed. D. fabrizioi n. sp. can be easily distinguished from D. planifrons by having: (1) a wide pentagonal figure on the posterior part of the female carapace (a narrower pentagonal figure in D. planifrons), (2) a uniformly arched outline of the plateau when the carapace is seen from above (interrupted by two prominent blunt projections in D. planifrons), and (3) a telson with two divergent cuspidate setae distally (in close apposition in D. planifrons). Specimens housing nicothoid copepods inside their branchial chambers were observed in both species herein studied. One of these infested branchial chambers also contained two cryptoniscus larvae (Isopoda, Epicaridea). © 2008 Taylor & Francis. Fil:Alberico, N.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Roccatagliata, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v42_n13-14_p1039_Alberico http://hdl.handle.net/20.500.12110/paper_00222933_v42_n13-14_p1039_Alberico
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cryptoniscus larvae Cumacea Diastylis Nicothoid copepods South America crustacean morphology new species taxonomy South America Copepoda Crustacea Cumacea Diastylidae Diastylis Epicaridea Isopoda Nicothoidae
spellingShingle	Cryptoniscus larvae Cumacea Diastylis Nicothoid copepods South America crustacean morphology new species taxonomy South America Copepoda Crustacea Cumacea Diastylidae Diastylis Epicaridea Isopoda Nicothoidae Alberico, Natalia Andrea Roccatagliata, Daniel Carlos Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America
topic_facet	Cryptoniscus larvae Cumacea Diastylis Nicothoid copepods South America crustacean morphology new species taxonomy South America Copepoda Crustacea Cumacea Diastylidae Diastylis Epicaridea Isopoda Nicothoidae
description	A new cumacean from the southwestern Atlantic, Diastylis fabrizioi, is fully described. This species is closely allied to Diastylis planifrons Calman, 1912, whose description is also completed. D. fabrizioi n. sp. can be easily distinguished from D. planifrons by having: (1) a wide pentagonal figure on the posterior part of the female carapace (a narrower pentagonal figure in D. planifrons), (2) a uniformly arched outline of the plateau when the carapace is seen from above (interrupted by two prominent blunt projections in D. planifrons), and (3) a telson with two divergent cuspidate setae distally (in close apposition in D. planifrons). Specimens housing nicothoid copepods inside their branchial chambers were observed in both species herein studied. One of these infested branchial chambers also contained two cryptoniscus larvae (Isopoda, Epicaridea). © 2008 Taylor & Francis.
author	Alberico, Natalia Andrea Roccatagliata, Daniel Carlos
author_facet	Alberico, Natalia Andrea Roccatagliata, Daniel Carlos
author_sort	Alberico, Natalia Andrea
title	Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America
title_short	Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America
title_full	Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America
title_fullStr	Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America
title_full_unstemmed	Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America
title_sort	diastylis fabrizioi, a new species and brief redescription of d. planifrons calman, 1912 (crustacea: cumacea: diastylidae) from south america
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v42_n13-14_p1039_Alberico http://hdl.handle.net/20.500.12110/paper_00222933_v42_n13-14_p1039_Alberico
work_keys_str_mv	AT albericonataliaandrea diastylisfabrizioianewspeciesandbriefredescriptionofdplanifronscalman1912crustaceacumaceadiastylidaefromsouthamerica AT roccatagliatadanielcarlos diastylisfabrizioianewspeciesandbriefredescriptionofdplanifronscalman1912crustaceacumaceadiastylidaefromsouthamerica
_version_	1768546055078543360

Diastylis fabrizioi, a new species and brief redescription of D. planifrons Calman, 1912 (Crustacea: Cumacea: Diastylidae) from South America

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