Establishment of a new genus for Parastenocaris itica (Copepoda, Harpacticoida) from El Salvador, Central America, with discussion of the Parastenocaris fontinalis and P. proserpina groups

Author:

Corgosinho Paulo Henrique C.1,Arbizu Pedro Martínez2,Previattelli Daniel3

Affiliation:

1. Center Unesco, Brazil; Universidade Estadual de Minas Gerais, Brazil

2. Deutsches Zentrum für Marine Biodiversitätsforschung, Germany; Universität Oldenburg, Germany

3. Universidade Estadual de Minas Gerais, Brazil

Abstract

A new genus of Parastenocarididae is described from the Neotropical region. Iticocaris gen. nov. is established to include Parastenocaris itica Noodt, 1962. Iticocaris gen. nov. is defined by the following characters: 1) male leg 3 with 2-segmented exopod; 2) first exopodal segment short and rectangular; 3) thumb hypertrophic, longer than the second exopodal segment and inserted on the distal edge of exopod segment 1, occupying the whole distal margin; 4) exopod 2 or apophysis strongly sclerotized, articulated with the exopod segment 1 on its inner margin and curved against the thumb, forming a strong forceps; 5) leg 4 endopod without dimorphism in shape and size vs. minor dimorphism in ornamentation; 6) leg 5 with three setae and 7) lack of the anterolateral furcal seta II. The new genus is monotypic, represented by Iticocaris itica (Noodt, 1962) comb. nov., from El Salvador, Central America. A close relationship is hypothesized between I. itica and the genus Brasilibathynellocaris Jakobi, 1972, the males of which both share the forceps-like elongated apophysis.

Publisher

FapUNIFESP (SciELO)

Subject

Animal Science and Zoology

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3. Two new interstitial species of Remaneicaris Jakobi 1972 from Ribeirão do Ouro River, Minas Gerais, Brazil, with a redefinition of the genus (Crustacea, Copepoda, Harpacticoida, Parastenocarididae);CORGOSINHO P. H. C.;Senckenbergiana Biologica,2005

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