How to translate text using browser tools
12 April 2006 Calyptraeotheres hernandezi (Crustacea: Brachyura: Pinnotheridae), a new crab symbiont of the West Indian cup-and-saucer Crucibulum auricula (Gmelin) (Mollusca: Gastropoda: Calyptraeidae) off Cubagua Island, Venezuela
Iván Hernández-Ávila, Ernesto Campos
Author Affiliations +
Abstract

Calyptraeotheres hernandezi is described from off Cubagua Island, Caribbean Sea, Venezuela. The new species resembles C. granti (Glassell, 1933) from the eastern Pacific, with both taxa possessing a third maxilliped with an endopod palp of only two segments, i.e., with the dactylus missing, and the exopod with a thin and unsegmented flagellum. The new Atlantic species differs in the female having eyes that are visible from dorsal view, the propodi of the walking legs having subparallel margins, and the ventral margin of the pollex bearing a small fringe of setae. In contrast, the Pacific limpet crab C. granti has the eyes hidden from the dorsal perspective, the margin of the propodus of the walking legs tapered distally, and the ventral margin of the pollex with a well-developed fringe of setae. The austral species C. garthi (Fenucci, 1975) and C. politus (Smith, 1870) can be separated from the former two species by their third maxilliped having a rounded and minute dactylus that is inserted subdistally on the ventral margin of propodus. The new species inhabits the West Indian gastropod Crucibulum auricula (Gmelin).

Calyptraeotheres hernandezi se describe de las vecindades de la isla Cubagua, Mar Caribe, Venezuela. La nueva especie se asemeja a C. granti (Glassell, 1933) del Pacifico oriental, ambas especies poseyendo el palpo del endópodo del tercer maxilipedio con 2 segmentos, i.e., el dáctilo esta ausente, y el exópodo con un flagelo delgado y no segmentado. La nueva especie atlántica difiere porque los ojos de la hembra son dorsalmente visibles, los márgenes de los própodos de las patas caminadoras son subparalelos y el margen ventral del dedo fijo posee un pequeño fleco de setas. En contraste, el cangrejo de la lapa del Pacifico, C. granti, tiene los ojos dorsalmente ocultos, el margen de los própodos de las patas caminadoras se estrecha distalmente y el margen ventral del dedo fijo posee un fleco de setas bien desarrollado. Las especies australes C. garthi (Fenucci, 1975) y C. politus (Smith, 1870) pueden separarse de las anteriores debido a que su tercer maxilípedo presenta un dáctilo pequeño y redondo que se inserta subdistalmente sobre el margen ventral del própodo. La nueva especie habita en la lapa Crucibulum auricula (Gmelin).

Iván Hernández-Ávila and Ernesto Campos "Calyptraeotheres hernandezi (Crustacea: Brachyura: Pinnotheridae), a new crab symbiont of the West Indian cup-and-saucer Crucibulum auricula (Gmelin) (Mollusca: Gastropoda: Calyptraeidae) off Cubagua Island, Venezuela," Proceedings of the Biological Society of Washington 119(1), 43-48, (12 April 2006). https://doi.org/10.2988/0006-324X(2006)119[43:CHCBPA]2.0.CO;2
Published: 12 April 2006
JOURNAL ARTICLE
6 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

RIGHTS & PERMISSIONS
Get copyright permission
Back to Top