Three new species and a new genus of majoid crabs from the eastern Pacific (Decapoda, Brachyura)

By

Colavite, Jessica
Windsor, Amanda M.
Santana, William

Type

Article

Date of Publication

2019

Original Publication

ZooKeys

Volume

825

Pages

1-24

Subjects

Biodiversity , Epialtidae , Inachoididae , Pisinae , Spider crab

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.825.32271

 

Abstract

Three new species and a new genus of majoid crabs from deep waters in the eastern Pacific are described and illustrated using morphological and molecular data. A new species of inachoidid,Collodesanartiussp. n.is described from Peru, which resemblesC.tenuirostrisRathbun, 1893, in the general appearance of the carapace, but is distinguished by the details of tubercles on the carapace and thoracic sternum, proportions of the pereopod articles, and bathymetric distribution. A new epialtid,Nibiliamachalasp. n., is described from Ecuador;NibiliaA Milne-Edwards, 1878 has, until now, been considered to be monotypic, occurring only in the western Atlantic. This new species, from the eastern Pacific, closely resemblesN.antilocapra(Stimpson, 1871) in the general morphology, but can be distinguished by the number of spines on the carapace and pereopods. Another epialtid,Solincaaulixgen. n. et sp. n, is establish for material collected from Ecuador and Peru, and can be easily identified from other taxa by the presence of a deep furrow between the very inflated branchial regions.