31. CYPKINIDJi — SQUALIUS. 
239 
lique, the premaxillary just below tbe level of the; pii[)il, the maxillary 
reachiug- to just below the level of the eye. Dorsal hii iuserted some- 
what behind veutrals. Pectorals short, not reachiug nearly to ^'entrals, 
the latter not to the vent. Scales very small. Lateral line somewhat 
decurved. Bluish olive above, with dark iioints ; a dusky lateral shade ; 
fins nearly plain ; axils red in the males. Head 4 j depth 3i^. D. 8 5 
A. 8 ; scales about 19-80-12 ; teeth 2, 5-4, 2, typically without grinding 
surface, but subject to an unusual amount of irregularity, occasionally 
2 , 4-4, 1 or 2, and sometimes with grinding surface. L. G inches. Bio 
Grande and basin of Utah; very abundant. Described from specimens 
from Bear Biv^er, Wyoming. 
(Gila egregia Cope, Zool. AVheeler’s Expl. tV. lOOtli Mer. v, (562 (uot Tigoma egregia 
Girard, as Girard’s original specimens have Lat. 1. C5); Jor. & Gilb. Proe. U. 8. Nat. 
Mus. 1880, 461.) 
392. S. iiig'er (Cope) J. & G. 
Body robust, the back elevated anteriorly, the caudal iteduucle short- 
ish and not very stout. Occiput depressed. Head large. Eye rather 
large, 5 in head. Month large, moderately oblique, the lower jaw in- 
cluded, the maxillary extending to the pniiil. Fins small, the dorsal 
well backward. Scales small, posteriorly smaller and more crowded. 
Lateral line little decurved. Color dusky, the scales with black dots. 
Head 3|; depth 3|. D. 8 ; A. 8 ; Lat. 1. 80; teeth 2, 4-5, 2, said by 
Girard to have a developed grinding surface, which, however, we are 
unable to find. Bio Gila. A well-marked species, apfiroaching the 
genus Gila. 
(Gila gibbosa B. & G. Proc. Acad. Nat. Sci. Phila. 1854, 28: Tigoma gibbosa Girard, 
Proc. Acad. Nat. Sci. Phila. 1856, 207, and U. S. Mex. Bound. Surv. Ichth. 64 : f Gila 
nigra Cope, Zool. Wheeler’s Expl. W. 100th Mer. v, 633. The name gibbosa is, unfor- 
tunately, preoccupied.) 
393. S. coiispersus (Garm.) J. & G. 
Form of S. niger. Profile of head concave, maxillary reachiug front 
of orbit. Pectorals extending three-fourths distance to ventrals, Avhich 
reach vent. Brown above; scales of back and sides speckled with 
darker; an obscure dusky lateral shade. Head 3|-; depth 3|. D. 8 ; A. 
8 ; “teeth 4, 1-1, 4, clawed”; scales 13-G9-9. Dfazas Biver. (Garman.) 
(Gila coiispersa Garman, Bull. Mus. Comp. Zool. viii, 1881, 91.) 
ft Caudal peduncle very deep and compressed, its depth nearly equal to the depth 
of the head; dorsal over ventrals; scales rather large. (Siboma Girard.) 
394. S. ;;ibl>0$us (Grd.) J. & G.— Mullet; Chub. 
Body short, deep, (iompressed, the antedorsal region arched, the 
caudal peduncle nearly as deep as long, about as deep a^i the head. 
