Revision of the freshwater crabs of the genus Tehuana Rodríguez & Smalley in Smalley 1970 (Decapoda, Pseudothelphusidae), with the descriptions of two new species

By

Moreno, Eric
Villalobos, Jose Luis
Alvarez, Fernando

Type

Article

Date of Publication

2022

Original Publication

ZooKeys

Volume

1117

Pages

1--35

Subjects

molecular phylogeny , Neotropical region , southeastern Mexico , Tehuana ayotzintepecensis sp. nov , Tehuana col sp. nov

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1117.85362

 

Abstract

The freshwater crab genus Tehuana Rodríguez & Smalley in Smalley, 1970 includes eight species distributed in southeastern Mexico. A recent review of organisms belonging to this genus uncovered new variations in the male gonopod morphology. A phylogenetic analysis based on molecular characters using three genes (H3, 16S, and COI) resulted in the identification of two new species which are described herein: Tehuana ayotzintepecensissp. nov. from Oaxaca and Tehuana colsp. nov. from Veracruz. New diagnoses are provided for those species that had very brief descriptions lacking the treatment of important taxonomic characters and an identification key for all the species in the genus is also given. A discussion of the distribution of all the species in Tehuana in the Isthmus of Tehuantepec is presented.