|
Algansea amecae Pérez-Rodríguez, Pérez-Ponce de León, Domínguez-Domínguez & Doadrio, 2009 Ameca chub |
| Family: | Leuciscidae (Minnows), subfamily: Pogonichthyinae | |||
| Max. size: | 10.1 cm SL (male/unsexed) | |||
| Environment: | pelagic; freshwater | |||
| Distribution: | North America: Mexico. Endemic to the eastern headwaters of the Ameca River basin in west-central Mexico in the state of Jalisco (Ref. 82373). | |||
| Diagnosis: | 24-25 transverse scales (rarely 26); 14 upper row scales (occasionally 13 or 15); 14-19 pores in the infraorbital head sensory canal (usually 15-16). Body is divided dorsoventrally into 4 pigmentation zones as follows: a dark dorsal region; a light band equal to or greater than the width of the pupil; a prominent dark lateral stripe along body, considerably narrower at the anterior region just before the opercular opening; and a silver ventral region. Black spot at the base of caudal fi n set off from lateral stripe by a constriction of the pigment band, the spot extending out onto median caudal interradial membranes. Lateral line pigmented, edged by high concentrations of melanophores around scale pores (Ref. 82373). | |||
| Biology: | ||||
| IUCN Red List Status: | Endangered (EN); Date assessed: 05 March 2018 (B1ab(i,ii,iii,iv)) Ref. (130435) | |||
| Threat to humans: | harmless | |||