238 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



3§7. S. purpureus (Grd.) Jor. 



Stoat and compressed. Head long. Lateral line decurved. Dorsal 

 tin slightly behind ventrals. Fins all small. Blackish above, i)ale be- 

 low. Head 3.^; depth 3f. A. 8; scales 13-02-8; teeth 2, 4-?, ?. San 

 Bernardino, Mexico. 



{TUjoma purpurea Grd. Proc. Acad. Nat. Sci. Phila. 1856, '206.) 

 hh. .Scales iu lateral line 65-HO. 



3§8. S. pulchelSus (B. & G.) J. & G. 



Body long and slender, the caudal peduncle rather narrow, but not 

 specially contracted. Head slender, rather i)ointed. Mouth moderate, 

 somewhat oblique, the maxillary scarcely reaching to the eye. Lateral 

 line strongly decurved. Fins high, the dorsal somewhat behind ven- 

 trals. Eye 4:i iu head. Grayish ; two dusky lateral streaks ; belly 

 white. Head 4 ; depth 4^. D. 8 ; A. 8 ; Lat. 1. 6G ; teeth 2, 5-4, 2. Rio 

 Mimbres, a tributary of Lake Guzman, in Mexico. 



{Thjoma pulchclla Baird & Girard, Proc. Acad. Nat. Sci. Phila. 1854, 29: TUjowa 

 piih'heUa Grd. U. S. Mex. Bound. Surv. Iclith. 62.) 



389. S. iaitcrmcditts (Grd.) J. & G. 



"Intermediate between S. indchellHS and *S'. ^JMrj^MJ-ews, much nearer 

 the former than the latter." Similar to the preceding. The caudal pe- 

 duncle slender. Dorsal hn somewhat behind ventrals. Fins small. 

 Coloration silvery, with dark dots. Head 3!^ ; depth 4. D. 8 ; A. 9 ; 

 scales 15-73-9. Eio Gila. 



{Thjoma intermedia Grd. Proc. Acad. Nat. Sci. Phila. 1856, 206.) 



390. S. saSicase .louy. 



Body elongate, little compressed, the dorsal and ventral outlines 

 similar. Head short, rather stout, its breadth f its length. Snout 

 rounded, jaws equal, the maxillaries reaching front of eye. Eye 4 iu 

 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,^. D. 8 ; A. 8 ; scales minute, 18-80-15. 

 Utah Lake, 



(Jouy, Proc. T. S. Nat. Mus. 1881, x.) 



391. S. copes .Jordan A: Gilbert. 



Body comi^aratively 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, 3i-4 in head. Mouth rather small, low, terminal, ob- 



