238 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
3§7. S. pmrpurcBis (Gnl.) Jor. 
Stout and conii)ressed. Head long. Lateral line decurved. Dorsal 
tin slightly behind ventrals. Fins all small. Blackish above, iiale be- 
low. Head 3^ ; depth .3f. A. 8; scales 13-02-8 ; teeth 2, 4-?, L San 
Bernardino, Mexico. 
{Tigoma pin'inirca Grd. Proc. Acad. Nat. Sci. PJiila. 1856, 206.) 
hh. Scales in lateral line 65-80. 
3§§. S. puBicheaiais (B. & G.) J. & G. 
Body long and slender, the caudal peduncle rather narrow, but not 
specially contracted. Head slender, rather pointed. Mouth moderate, 
somewhat oblique, the maxillary scarcely reaching to the eye. Lateral 
line strongly decurved. Fins high, the dorsal somewhat behind ven- 
trals. Eye in head. Grayish; two dusky lateral streaks; belly 
white. Head 1; depth 8; A. 8; Lat. 1. 00; teeth 2, 5-4, 2. Bio 
Mimbres, a tributary of Lake Guzman, in Mexico. 
{Tigoma pulcheUa Baird & Girard, Proc. Acad. Nat. Sci. Pbila. 1854, 29; Tigoma 
pulcheUa Grd. U. S. Mex. Bound./ Surv. Iclith. 62.) 
389. S. aa»tCB'Eaac«li»BS (Grd.) J. & G. 
‘‘Intermediate between 8. j^^tlchelhis and 8. 2 )urpureus, umch nearer 
the former than the latter.” Similar to the preceding. The caudal pe- 
duncle slender. Dorsal tin somewhat behind ventrals. Fins small. 
Coloration silvery, with dark dots. Head 3^; depth 4. D. 8; A. 9; 
scales 15-73-9. Bio Gila. 
{Tigoma iniermedia Grd. Proc. Acad. Nat. Sci. Phila. 1856, 206.) 
390. §. aMcaae .Jouy. 
Body elongate, little compressed, the dorsal and ventral outlines 
simdar. Head short, rather stout, its breadth f its length. Snout 
rounded, jaws equal, the maxillaries reaching front of eye. Eye 4 in 
head. Pectoral tin as long as head, not reaching ventrals. Dark 
plumbeous above, with a median steel-blue lateral band; belly pinkish ; 
cheeks silvery. Head 4^ ; depth 4^. 1). 8 ; A. 8 ; scales minute, 18-80-15. 
Utah Lake. 
(Jouy, Proc. U. S. Nat. Mu«. 1881, x.) 
391. 8. copeB Jordan A Gilbert. 
Body comparatively elongate and compressed, the caudal peduncle 
long and rather slender. Head short, rather broad and flattish above, 
the interorbital space convex and broader than the eye. Eye moderate, 
as long as snout, 3^-4 in head. Mouth raither small, low, terminal, ob- 
