Jordan and Evermann. Fishes of North America. 671 



a. Scales large, 24 to 26 in lengthwise series; sides without dark lateral band. 



b. Sides with dark bars in the female, nearly plain in the males; females with black ocel- 

 lus on last rays of caudal; male with tip of caudal black. 

 c. Body deep, the depth nearly or quite half length of body in males, the females more 



elongate. 



d. Humeral scale* considerably enlarged. 

 e. Dorsal rays usually 11; anal rays 10. 



/. Head moderate, about 3% in body; male with the back largely blue in 

 life, the lower parts coppery; caudal in male with a dusky bar at 

 tip, the base dusky or pale; unspotted; tips of dorsal dusky. 



VAKIEGATUS, 985. 



ff. Head larger, about 3% in body; male with the caudal speckled at base; 

 this followed by a pale bar and a black one; dorsal pale. 



EXIMIUS, 986. 



ee. Dorsal rays 9; anal rays 8; head very large, about 3 in length ; coloration 



dark. BOVINUS, 987. 



dd. Humeral scale little enlarged; dorsal rays 9 toll; head 3 to 3% in length; 



depth nearly 2; scales 24 or 25. 



g. Anal rays 10 or 11; males dusky, the fins all margined with black; females 



barred with black and usually with black dorsal ocellns; ventral fins 



often absent. MACULARIUS, 988. 



,gg. Anal rays 13; sides with two lengthwise series of coarse black spots; no 



ventral fins in specimens known. BAII-EYI, 989. 



cc. Body comparatively slender, the depth 2% to 3 in length; dorsal rays 11; anal 10; 



head rather large, 3% in length; dorsal spotted or clouded at base. 



ELEGANS, 990. 



ccc. Body more elongate, the depth nearly 4 in length; dorsal 9; anal 10; scales 26-9. 



MAHTVE, 991. 



bb. Sides in males with faint coppery bars and yellow spots; fins tipped with orange; 

 females with oblong blotches of bright orange; no dorsal ocellus, humeral scale 

 not enlarged; depth 2f in length; head 3. D. 11; A. 9; scales 24. CARPIO, 992. 

 oa. Scales smaller, 30 in a lengthwise series. 



k. Sides without longitudinal stripe, but with six brown cross bands (in male) ; caudal with 

 a black bar at tip and a fainter one at base. D. 12; A. 10. FELICIANUS, 993. 



M. Sides with a dark horizontal lateral band, bordered on each side by a light band; cau- 

 dal with a narrow dark band at base and a very broad one at tip. D. 12; A. 11. 



LATIFA6CIATU6, 994. 



985. CYPBINODON YABIEGATUS, Lacepede. 

 (SHEEPSHEAD MINNOW ; PURSY MINNOW.) 



Head rather small, 3i to 3| ; depth 2 to 2 ; eye 3| ; interorbital width 

 3 in head. D. 11; A. 10; B. 6; scales 26-13. Body very short and robust, 

 in adults high and much compressed, the females abruptly constricted at 

 base of caudal peduncle ; caudal peduncle rather short and high, rapidly 

 narrowed backward to tail, its greatest height nearly equal to length of 

 head, its least height -J head ; head short, little depressed, narrowed upward 

 and forward, with sharp snout and small mouth ; width of mouth rather 

 less than length of snout ; teeth large, in a single series, consisting of 

 wedge-shaped incisors, much widened toward tips, the cutting edge tri- 

 cuspid ; no villiform teeth ; eye moderate, its diameter longer than man- 

 dible, slightly less than interorbital width, about equal to length of snout. 

 Opercle joined by membrane to shoulder girdle from a point slightly above 

 base of pectoral. Intestinal canal long, but not much convoluted, 2 times 



* Character not verified in C. bovinus or in (7. elegants. 



