title: Hyalella cenotensis, a new species of Hyalellidae (Crustacea: Amphipoda) from the Yucatán Peninsula, Mexico.
abstract: In this study the first blind species of Hyalella for Mexico is described; it is the second in the genus to be recorded there. The new species is closer to the eyeless species: H. anophthalma Ruffo, 1957, H. muerta Baldinger, Shepard & Threloff, 2000, H. caeca Pereira, 1989, H. spelaea Bueno & Cardoso, 2011 in Cardoso et al. 2011, H. imbya Rodrigues & Bueno, 2012 in Rodrigues et al. 2012, but with no curved seta at the inner ramus of uropod 1, antennae 1 shorter than antennae 2, no apical setae on the telson and a characteristic dorsoposterior carina and three pappose setae on the inner plate of maxilla 1. The morphological intraspecific variations that can be found in this genus are discussed.
authors.affiliation: Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica Sistemas Arrecifales, Q. Roo 77580 México.; Email: solisw@cmarl.unam.mx.
authors.forename: Aurora
authors.initials: A
authors.lastname: Marrón-Becerra
authors.affiliation: CONABIO, Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, Liga Periférico - Insurgentes Sur, Núm. 4903, Col. Parques del Pedregal, Delegación Tlalpan, 14010, Mexico, D.F.; Email: unknown.
authors.forename: Margarita
authors.initials: M
authors.lastname: Hermoso-Salazar
authors.affiliation: Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica Sistemas Arrecifales, Q. Roo 77580 México.; Email: solisw@cmarl.unam.mx.
authors.forename: Vivianne
authors.initials: V
authors.lastname: Solís-Weiss
mesh_terms: D033304:Amphipoda / Q000033:anatomy & histology / Q000145:classification* / Q000502:physiology; D000818:Animals; D005260:Female; D005618:Fresh Water; D008800:Mexico