31. CYPRINID^ LEUCUS. 
245 
a prominent raised prominence of the bone. Scales moderate. Lateral 
line continuous, decuiVed. Anal basis short. Abdomen not compressed. 
Intestinal canal not elongate. Species numerous in Europe, Asia, and 
America. This genus is very closely allied to the European Leuciscus 
Cuvier, differing in the presence of teeth 5-5 or 5-4, instead of G-5 or 
G-6. The name finally to be adopted for this group, if admitted as dis- 
tinct, is nncertaiu. Avhite.) 
a. Teeth 4-1,* with entire edges. {AJgansea Girard. t) 
407. 1<. tiiBcella (Val.) J. & G. 
Body stoutish. Head heavy. Mouth moderate, oblique, the maxil- 
lary not reaching to the eye. Jaws about equal. Eye rather small. 
Caudal peduncle thick. Fins small, the caudal short. Dorsal just over 
ventrals. Scales quite small, firmly attached and not closely imbricated, 
as in il/y/oc/rt7tt6*, etc. Coloration dark, iffaiii; fins unspotted. HeadSf; 
depth 3f ; scales 17-70-9; teeth 4-4. L. G inches. City of Mexico. 
(Leuciscus iinceUa C. & V. xvii, 3‘23; Giiuther, vii, 244.) 
aa. Teeth 4-5, witli entire edges. (Muloleucus Cope.J) 
40§. Li. obestis (Grd.) Jor. 
Body stout. Head short, the muzzle not decnrved. Month small, 
oblique, terminal, the lower jaw somewhat projecting, maxillary nearly 
reaching to orbit. Eye 4-]- in head ; preorbital deeper than long. Color 
dark; the belly silvery; the scales everywhere dusted with black specks; 
a dusky lateral band. HeadSf; depth 3.^. D. 9; A. 8; scales 12-58-7 
(13-58-9, Cope); teeth 5-4. L. G inches. Utah Basin; abundant. 
^ (Alganseu ohesa Girard, Proc. Acad. Nat. Sci. Phila. 1856, 183, and U. S. Pac. E. R. 
Surv. Fish. 239: Leuciscus obesus Gunther, vii, 244: Myloleucus pulverulentus Cope, 
Hayden’s Geol. Surv. Mont. 1871, 475, 1872 ; Jordan & Henshaw, Rept. Chief Ena. 
1878, App. NN. 192.) 
409. L. formostis (Grd.) Jor. 
Very close to the next, and perhaps identical with it. Body a little 
more slender, the scales smaller, and profusely dotted with black as in 
L. obesus. Head 3^; depth 4. D. 8; A. 8; scales 10-53-G; teeth 5-4. 
L. 4 inches. California. 
(A?5-anst;a /ormo.sa Girard, Proc. Acad. Nat. Sci. Pliila. 1856, 183: Leuciscus formosus 
Giinther, vii, 245; Jordan & Ileushaw, 1. c. 193.) 
* In specimens examined ; the normal number is probably 5-4. If permanently 4-4 
Ahjansea may be regarded as a distinct genus. 
t Girard, Proc. Acad. N.at. Sci. Phila. 1856, 184: type Leuciscus tincella Val. (A coined 
name.) 
tCope, Hayden’s Geol. Surv. Mont. 1871, 475, 1872: tyi>e Myloleucus puherulentus 
Cope> = Algansea obesa Girard. {/uvXoi, grinder; Xavnoi, Leucus.) 
