Gila nigra Cope, 1875
Headwater chub
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 Family:  Cyprinidae (Minnows or carps), subfamily: Leuciscinae
 Max. size:  38 cm TL (male/unsexed)
 Environment:  benthopelagic
 Distribution:  North America: Gila River system (Colorado River drainage) in New Mexico and Arizona, USA.
 Diagnosis:  Dorsal soft rays (total): 8-8; Anal soft rays: 8-8. Previously thought to be of hybrid origin and similar to parental Gila robusta and G. intermedia. Dorsal and anal fins with 8 rays; lateral line with 71-90 scales, usually fewer than 80; first gill arch with 10 or more rakers; and often with diffuse stripes on dark gray or brown side, dark fin membranes (Ref. 86798).
 Biology:  Inhabits pools and undercut banks of headwaters, creeks and small rivers. Maximum length is presumably about 38 cm TL (Ref. 86798).
 IUCN Red List Status: Near Threatened  (Ref. 96402)
 Threat to humans:  harmless
 Country info:   

 Entered by: Torres, Armi G. - 18.08.03
 Modified by: Torres, Armi G. - 15.01.15

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 Not for publication.

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