CYPRINIDA. — XXVI. 67 
c. Mouth very wide, the lower jaw much projecting, the maxillary reach- 
ing to below pupil; body elongate, compressed; D. well behind V.; 
scales quite small; size small. (Clinostomus Girard.) 
d. Scales very small, 63 to 70 in the lateral line. 
150. P. elongatus (Kirtland). Body elongate, compressed ; 
head long, pointed ; mouth larger than in any other of our Cypri- 
nide. Kye 4in head; lateral line decurved. Dusky bluish, mottled 
with paler; a broad black lateral band, the front half of which is 
bright crimson in spring males. Head 4; depth 5. A.9. Scales 
10-70-5. L. 4. Penn. to Minn., chiefly northward, in clear 
brooks. (Clinostomus proriger Cope.) 
dd. Scales larger, 48 to 55 in the lateral line. 
e. Mouth very large, the gape half head, the maxillaries reaching to 
opposite middle of orbit. 
151. P. estor (Jordan & Brayton). Body elliptical, compressed ; 
head very large; eye 4 in head; lateral line decurved; 23 scales 
before D. Dark olive, mottled with darker ; sides silvery ; no broad 
black lateral band; males largely crimson. Head 32; depth 4}. 
A. 8 Scales 8-50-5. L. 4. Cumberland and Tenn. Rivers 
(Lat., devourer.) 
ee. Mouth smaller, the maxillaries not reaching to opposite middle of 
eye. 
J. Body deep, the depth in adult 33 in length. 
152. P. vandoisulus (Cuv. & Val.). Head large; eye 34 in 
head ; bluish, some scales irregularly blackish;‘no black lateral 
band; spring males rose-red, especially anteriorly. Head 33. A. 8, 
lat. 1.53. Va. toGa., common. (Fr. vandoise, dace.) 
Jf: Body rather slender, the depth in adult 4}. 
153. P. funduloides (Girard). Head and mouth smaller than 
in any of the preceding species. Eye 3 in head. Dusky, a dark 
lateral band with a pale streak above it; males red below in 
spring. Head 4}. A. 8. Scales 9-48-4. Penn. to N. C. (Lat., 
like Fundulus.) 
cc. Mouth moderate, terminal, oblique, the chin usually not projecting; 
premaxillary below level of pupil, the maxillary not reaching 
pupil. (Tigoma Girard.) 
g- Anal short, with about 8 rays. 
154. P. margaritus (Cope). Body robust, little compressed ; 
head blunt, thick, rounded; mouth small, the maxillary not to eye; 
eye rather large; lateral line decurved; dorsal behind ventrals. 
Dusky, sides plumbeous silvery, crimson in spring males. Head 
4; depth 4. A.8. Scales 11-58-8. L. 3. Susquehanna R. A 
pretty fish, similar to the typical species of Phoxinus in all respects, 
but the lateral line is complete. (Lat., pearly.) 
