A new species of the genus Hyalella (Crustacea, Amphipoda) from northern Mexico

By

Marrón-Becerra, Aurora
Hermoso-Salazar, Margarita
Rivas, Gerardo

Type

Article

Date of Publication

2020

Original Publication

ZooKeys

Volume

942

Pages

1--19

Subjects

Durango , freshwater amphipod , Nearctic region , scud , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.942.50399

 

Abstract

A new species, Hyalella tepehuanasp. nov., is described from Durango state, Mexico, a region where studies on Hyalella have been few. This species differs from most species of the North and South American genus Hyalella in the number of setae on the inner plate of maxilla 1 and maxilla 2, characters it shares with Hyalella faxoni Stebbing, 1903. Nevertheless, H. faxoni, from the Volcan Barva in Costa Rica, lacks a dorsal process on pereionites 1 and 2. Also, this new species differs from other described Hyalella species in Mexico by the shape of the palp on maxilla 1, the number of setae on the uropods, and the shape of the telson.