23 () CONTRIBUTIONS TO NORTH AMERICAN ICTITITYOLOCY — IV. 
pfula (Cope) .1. & 0. 
Body ratlier robust, heavy anteriorly. Head large, with wide front 
and broad, oblique month; maxillary reaching front of eye. Eye 5 
in head, 2 in interorbitid width. Dorsal tin ])osterior. Color dusky 
above; belly silvery; axils of tins crimson in males. Head 3^; dexith 
D. S; A. 8; scales 10-00-11; teeth 2, 5-4, 2. L. 7 inches. Xew 
Mexico. {Cope.) 
{Gila !/nh(. Cope, Zocil. Wliecler’s Expl. W. lOOtli Mer. v, 6(51.) 
o 
3i§0. S. B>siS<*5ae8’ (Gnl.) Jor. & Gill). 
Body rather slender, little coin]>ressed. Head rather long and liointed. 
IMonth oblique, terminal, the jaws about equal, the maxillary barely 
reaching the front of eye. Scales moderate. Lateral line deenrved. 
Fins large. Dorsal behind ventrals, its till when deiiressed reaching 
the i)osterior base of the anal. Pectorals nearly reaching ventrals. 
Coloration brilliant; dusky above; sides and belly golden (red in life?); 
sides with a vague dusky baud. Head 3^ ; deiMh 4J. D. 8; A. 8; 
scales 13-03-7 ; teeth 1, 4-4, 1, without grinding surface. L. 0 inches. 
Chihuahua Biver. A handsome siiccies, resembling Squalius cao'uleus, 
but with the tins larger and the number of teeth ditfereut. Although 
(lirard i)laces this hsh among the Tigomcc with grinding surface on the 
teeth, we are unable to find such surface on his tyiiical sx)ecimens. 
All that we hav^e examined have the teeth shari), and 1, 4-4, 1. If this 
dentition is constant, it may be necessary to refer S. pulcher to a differ- 
ent genus. 
{Tajoma piilchra Girard, Proc. Acad. Nat. kSci. Pliila. 1856, 207, aud U. S. Mex. Bound. 
Surv^ Icbtli. 65.) 
381. 8. egrogms (Grd.) J. & G. 
Body rather elongate, subfusiform. Head moderate. Snout thick- 
ish, subconical. Mouth oblique, the jaws equal, the maxillary reaching 
front of orbit. Eye moderate, 4J in head. Lateral line not much de- 
curved. Color bluish black ; sides with two irregular bands of dark 
sitots ; the intersxiace red in males. Head 4 ; dex)th 4. D. 8 ; A. 9 ; Lat. 
1. 05. Great Basin; exact locality unknown. 
{Tigoma egrcgla Grd. U. S. Pac. R. R. Snrv. x, 291.) 
382. 8. liiBeaties (Grd.) J. & G. 
Body elongate, subfusiform. Head moderate. Snout subconical. 
Mouth oblique, lower jaw somewhat included, maxillary reaching to 
orbit. Dorsal fin i)Osteiior. Scales small. Lateral line with an oiien 
