Taxonomic Characterization: Blind, eyestalks suboval and separate, carpopropodus of pereopods 2-7 2-merous. Unpigmented. Ommatidia completely absent. Telson slightly longer than wide, with 2 unarticulated central apical spinules. Telson without spines or lateral margins (Bowman, 1977).
Ecological Classification: Stygobitic
Size: Length 3-4 mm from the tip of the rostrum to the end of the telson.
Number of Species in Genus: Six from the subgenus Antromysis. According to Bowman (1977), the genus Antromysis includes four subgenera, viz. Antromysis s.str., Anophelina Bacescu & Orghidan, 1971, Parvimysis Brattegard, 1969 and Surinamysis Bowman, 1977; the last two subgenera do not include true stygobitic species.
Species Range: Widespread in the states of Quintana Roo and Yucatan, Mexico. Locales in Quintana Roo include Actun Ha, Cenote de Juan Coh,
Cenote de Las Ruinas, Cenote de San Martin, and Cenote de Santa Domingo. Locales in Yucatan include Balam Canche Cave, San Isidro Cave, Cenote de
Kankirixche, Cenote Nohchen, Cenote de San Diego, and Cenote de Xtacabiha. Rocha, Iliffe, Reid, Suarez-Morales, 2000 reported A. (A.)
cenotensis in the following Yucatan cenotes- Grutas de Santa Maria, Grutas de Tzab-Nah, Cenote Yunca, Chan-Hoch, Cenote Tos Virlol.
Closest Related Species: Similar to A. (A.) peckorum from Jamaica.
Habitat: Anchialine limestone caves
Ecology: A. cenotensis occurs in large numbers in the dark, interior waters of many cenotes throughout the Yucatan Peninsula.
Life History: The large populations and wide distribution of this species implies an effect reproductive strategy.
Evolutionary Origins: The distribution of stygobitic members of the subgenus Antromysis in Yucatan, Cuba and Jamaica suggests a marine ancestor capable of colonizing coastal caves in the northern Caribbean.
Conservation Status: Inhabits numerous caves and cenotes of the Yucatan Peninsula, Mexico. Classified as endangered by the NOM-059-ECOL-2001 "Norma Oficial Mexicana".
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