First record of Tweedy’s Crab-eating Rat, Ichthyomys tweedii Anthony, 1921 (Rodentia, Cricetidae, Sigmodontinae), for Costa Rica

By

Ramírez-Fernández, José D .
Durán A., Francisco J.
Fernández-Vargas, Marcela

Type

Article

Date of Publication

2020-4-10

Original Publication

Check list : journal of species lists and distribution

Volume

16

Series / Issue

Issue: 2

Pages

435--440

Subjects

Costa Rica mammals , Ichthyomyini , Las Cruces Biological Station , new record , range extension , water rat

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/16.2.435

 

Abstract

Tweedy’s Crab-eating Rat, Ichthyomys tweedii Anthony, 1921, was described based on just a few specimens, and many aspects of its biology remains unclear. The species has only been previously reported to occur in two geographically disjunct areas in Panama and Ecuador. We report a new record of this species for southern Costa Rica. Our new record is the first for this species and the genus for Costa Rica, as well as the northernmost expression of the genus.