J. Limnol., 2017; 76(1): 68-84 ORIGINAL ARTICLE DOI: 10.4081/jlimnol.2016.1480 This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). Candona alchichica (Podocopida: Candonidae), a new ostracod species from saline, tropical Lake Alchichica, Mexico Sergio COHUO,1* María del Carmen HERNÁNDEZ,2 Liseth PÉREZ,3 Javier ALCOCER4 1Institut für Geosysteme und Bioindikation, Technische Universität Braunschweig, Langer Kamp 19c D-38106 Braunschweig, Germany; 2Universidad Nacional Autónoma de México, Programa de Posgrado en Ciencias del Mar y Limnología, México; 3Universidad Nacional Autónoma de México, Instituto de Geología. Circuito Institutos. Ciudad Universitaria, Delegación Coyoacán. C.P. 4510, Ciudad de México, México; 4Universidad Nacional Autónoma de México, Facultad de Estudios Superiores Iztacala, Proyecto de Investigación en Limnología Tropical, Av. de los Barrios No. 1, Los Reyes Iztacala, 54090 Tlalnepantla, Estado de México, México *Corresponding author:
[email protected] ABSTRACT In North America, most species of the Candonidae family belong to the genus Candona. These species are frequently found in freshwater ecosystems and in sediment sequences, which makes them valuable tools for paleoenvironmental reconstructions. Knowledge of Mexican Candona species is limited, however, and scant information exists regarding their taxonomy and ecology. Here we describe Candona alchichica, a new ostracod species we suggest being endemic to Lake Alchichica, central Mexico.only The species belongs to the acuminata group of species, based on the presence of 5+1 setae on the second segment of the mandibular palp. It is closely related to C. patzcuaro, C. tahoensis and C. ohioensis, but differs from those species in that the females have an elongated genital field, wide at the base and narrow at the end.