| Family: |
Leuciscidae (Minnows), subfamily: Laviniinae |
| Max. size: |
24 cm TL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
North America: Mimbres River in New Mexico, USA; Lagunas Guzman and Bustillos, Chihuahua in Mexico. |
| Diagnosis: |
Dorsal soft rays (total): 9-9; Anal soft rays: 8-8. Gila nigrescens can be distinguished by the following characters: lateral line with 67-78 scales; dorsal fin with 9 rays; anal fin with 8 rays; 1st gill arch with 9014 rakers; pharyngeal teeth 2,5-4,2; deep, compressed body; long, fairly slender caudal peduncle; terminal mouth on rounded snout; olive-gray above; silver side; clear to slate gray fins; and breeding individuals with red-orange mouth and paired and anal-fin bases (Ref. 86798). |
| Biology: |
Inhabits flowing pools of creeks and small rivers, usually near brush or other cover (Ref. 86798). |
| IUCN Red List Status: |
Vulnerable (VU); Date assessed: 28 February 2019 (B1ab(i,ii,iii,v)+2ab(i,ii,iii,v)) Ref. (130435)
|
| Threat to humans: |
harmless |
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