Allotoca diazi (Meek, 1902)
Patzcuaro allotoca
Chorumo,  Patzcuaro allotoca
Allotoca diazi
photo by Artigas Azas, J.M.

Family:  Goodeidae (Splitfins), subfamily: Goodeinae
Max. size:  10 cm TL (male/unsexed); 12 cm (female)
Environment:  demersal; freshwater; brackish; pH range: 6.80000019073486 - 7.40000009536743; dH range: 5 - 10
Distribution:  Central America: endemic to the Lerma River basin, Mexico.
Diagnosis:   
Biology: 
IUCN Red List Status: Critically Endangered (CR); Date assessed: 17 April 2018 (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)) Ref. (130435)
Threat to humans:  harmless
Country info:  Restricted to Patzcuaro and Rancho El Morino, Michoacan. Found in Lake Patzcuaro which has no outlet, making its water slightly brackish. Population stable in the 1990s (Ref. 27639). Status of threat: endangered. Criteria: 1,5 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).


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