Borax Lake chub

Description

The Borax Lake chub (Siphateles boraxobius) is a rare cyprinid fish found only in outflows and pools around Borax Lake,a small lake of the Alvord basin,Harney County,Oregon.This species typically reaches only 5 centimetres (2.0 in) in length,although some are as long as 11 centimetres (4.3 in).The back is generally a dark olive green,while the sides are silvery,with a dark line extending from gill cover to tail,and a scattering of dark melanophores.The fins are colorless,with more melanophores on the rays of the dorsal fin and tail,as well as on the first four rays of the pectoral fins.Similar in many ways to the Alvord chub,the Borax Lake species has a longer,wider,and deeper head,and larger eyes,and the caudal peduncle is more slender.