Allotoca goslinei Smith & Miller, 1987
Banded allotoca
Allotoca goslinei
photo by JJPhoto

Family:  Goodeidae (Splitfins), subfamily: Goodeinae
Max. size:  6 cm TL (male/unsexed)
Environment:  demersal; freshwater; pH range: 7 - 7.59999990463257; dH range: 5 - 20; depth range 0 - 1 m
Distribution:  Central America: Ameca River basin, Jalisco, Mexico.
Diagnosis:  A small, cone-toothed goodeid characterized with the following: divided preorbital and preopercular sensory canals and trophotaeniae in an elongated rosette; presence of pores 2b-4a in the supraorbital canal system; 12-18 narrow vertical bars along midside; 35-38 vertebrae; compared with A. dugesi more anal-fin rays, modally 14 (vs. 11 or 12 and more diploid chromosomes, 2N = 48 telocentrics and subtelocentrics (vs. 2N = 26 including 22 metacentrics); compared with A. maculata, more dorsal-fin rays, modally 16 (vs. 13 or 14) and in having mandibular pores 4 (vs. 0); compared with A. diazi, A. catarinae and A. meeki, it has fewer preopercular pores modally 8 (vs. 10 or 11), fewer preorbital pores modally 4 (vs. 5), absence of metacentric chromosomes, and a dark band on the male caudal fin (Ref. 58357)., more dorsal
Biology:  Occurs mainly in shallow water (15-26 cm) underneath floating plants (water hyacinth, filamentous algae and a nasturtium-like plant) along the gradually sloping north side of the pool. Collected from quiet pool of clear to murky water, with substrate of sand, silt, rocks and boulders (Ref. 58357).
IUCN Red List Status: Extinct in the Wild (EW); Date assessed: 07 March 2018 Ref. (130435)
Threat to humans:  harmless

Source and more info: For personal, classroom, and other internal use only. Not for publication.