Poecilia mexicana
Poecilia mexicana Steindachner, 1863
Shortfin molly
Poecilia mexicana
photo by Artigas Azas, J.M.


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Family:  Poeciliidae (Poeciliids), subfamily: Poeciliinae
Max. size:  11 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater; brackish; pH range: 7 - 7.5; dH range: 20 - 30
Distribution:  North and Central America: Rio San Juan, Mexico to Guatemala. At least one country reports adverse ecological impact after introduction.
Diagnosis:   
Biology:  Adults occur in warm springs and their effluents, canals and weedy ditches, and stream pools (Ref. 5723). Food is mainly detritus (Ref. 36880). Some populations in caves (Ref. 27297). Migratory behaviour is undetermined (Ref. 126106).
IUCN Red List Status: Least Concern (LC); Date assessed: 22 March 2018 Ref. (130435)
Threat to humans:  potential pest


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