oi). LEuciscus. 245 



49. Leuciscus forinosus. 



Algansea fomosa, Gu-ard, Proc. Ac. Kat. Sc. P/ulad. I80G, p. 183 5 

 aud U. S. 4- Pac. P. P. Exped. Fish. p. 239. ^ 



D.2/8. A. 2/8. 



Ten longitudiual series of scales between the origin of the dorsal 

 hnanci the la eral hne, and seven between the lateral line and the root 

 of the ventrals Ihe length of the head is one-fonrtli of the total 

 (Jith the eaudal), the height of the body one-iifth. The diameter 

 of the eye is one-fifth of the length of the head. The maxillary 

 does not reach the vertical from the front margin of the orbit. The 

 ongm oi the dorsal fin is midway between the end of the snout and 

 the root of the caudal. Sometimes with small black spots 



Pharyngeal teeth 4 or 5-5 or 4, cultrilbrm. (Gircml) 



tamornia. 



50. Leuciscus bicolor. 



Algansea bicolor, Girard, Proc. Ac. Kat. ,Sc. PhUnd. 1856, p. 183 : 

 aud V. S. ^- Pac. P. P. Rcjml Fi,h. p. 238. ' ^ ' 



D. 1/9. A. 1/9. 



Nine longitudinal series of scales between the origin of the dorsal 

 fall and the lateral line, and five between the lateral Ime and the root of 

 the ventrals. Ihe length of the head is two-ninths of the total (with 

 the caudal), the diameter of the eye two-ninths of the length of the 

 head. The maxillary does not reach the vertical from the front 

 margin ot the orbit. The origin of the dorsal fin is somewhat be- 

 faind that ot the ventrals, and nearer to the root of tlie caudal than to 

 tiie end of the snout. Coloration uniform. 



Pharyngeal teeth 4 or 5—5 or 4, cultriform. (Girard ) 



-Klamath Lake, Oregon. 



2. The dorsal fn conimences behind the root of the ventrals. Pudimental 



caudal rays not unusually developed. 



a. Pharyngeal teeth in, two series. 



aa. Lateral line complete : phurymjeal teeth 5 or 4 . 2—2 . 5 or 4 



(Cliuostonnis). 



51. Leuciscus elongatus. 



Luxilus elongatus, A'irtlaml, Pep. Zool. Ohio, pp. 109, 192: and Post. 



Journ. A at. Hist. iii. p. 339, pi. 4. fig. 1. 

 Leuciscus elongatus, Storer, Synops. p.^161 ; Oav. ^- Val. xvii. p. 494. 

 -^ productus, Storer, Synops. p. 164. 



Clinostomus elongatus, Girard, Proc. Ac. Kat. Sc. Philad. 1856, p. 212. 

 D.9. A. 10. V. 9. L. lat. 72. L. transv. 12/11. 

 The height of the body is contained five times in the total leno-th 

 (without caudal), the length of the head thrice and four-fifths. 

 Head not twice as long as deep, fiat above ; the widtli of the inter- 

 orbital space is a little less than the length of the snout. The 

 diameter of the eye is contained thrice and two-thh'ds in the length 

 oi the head, and rather less than that of the snout. Mouth obHque. 



