1908.] NATURAL SCIENCES OF PHILADELPHIA. 547 



others. Ventral axil without scaly flap, though broad scaly flap 

 between bases of fins, its hind edge free. L. 1. complete, only decurved 

 at first till midway along body side and caudal peduncle. Tubes 

 simple, wefl exposed over each scale nearly to edge. 



Dorsal origin about midway between snout tip and caudal base, 

 third simple ray highest though first branched subequal, fin 2^ to 

 caudal base. Anal origin trifle after dorsal base, third simple ray 

 longest though first branched subequal, fin 2 to caudal base. Caudal 

 deeply forked, lobes pointed, equal. Pectoral rather broad, upper rays 

 longest, y^-jj to ventral. Ventral inserted trifle before dorsal, broadly 

 expanded, reaches vent close before anal. 



Color in alcohol dull brownish, lower surface scarcely paler, side 

 of head and streak down middle of side of trunk dull leaden-silvery. 

 Fins plain pale brownish. Iris dull brassy-brown. 



Length 2^^ inches. 



No. 6,003, A. N. S. P., cotype (type) of E. huccata Cope. Kiskimini- 

 tas River, western Pennsylvania (Cope). 



Also No. 6,004, same data, showing: Head 3^; depth 4f ; D. iii, 

 7, i; A. iii, 7, i; scales 31 +2; scales above 1. 1. 5; scales below 1. 1. 4; 

 predorsal scales 14; snout 3 in head; eye 3f ; maxillary 3y; interorbital 

 S}; third simple dorsal ray 1^; anal ray 1^; caudal 1; least depth 

 caudal peduncle 3; pectoral If; ventral 1|; teeth 1, 4-4, 1; length 

 If inches. 



Cope says "a narrow space from vent to opposite middle of pectorals 

 scaleless," which is not true in the above examples. 



This little fish is said to reach 5 inches in length, and occurs in clear 

 streams and ponds west of the Alleghanies. Its color is ohvaceous 

 above with silvery sides, and spring males are said to be without tuber- 

 cles or bright colors. There is a dark fine down the middle of the back 

 and a streak of dusky dots along the side. 



Rhinicllthys oataractse (Valenciennes). 



Head 3^ to 4; depth 4 to 5^; D. iii, 7, i; A. iii, 6, i; scales variable, 

 41 to 68, mostly from 53 to 66 + usually 3, occasionally 4, rarely 2; 

 scales above 1. 1. usuaUy 13, frequently 12 or 14, often 15, sometimes 

 11; scales below 1. 1. usually 11, frequently 10, often 9, seldom 12, 

 rarely 8; predorsal scales usually 27 to 31, occasionally 24 to 26 and 

 32 to 35, rarely 22, 36 or 37; snout 2^ to 3j\ in head; eye 3i to 5^; 

 maxiflary 2^ to 3^; interorbital 2f to 4^; teeth 2, 4-4, 2. Body 

 moderately slender, compressed, rather robast forward. Head elon- 

 gate, rather conic. Snout long as broad, convex, protruding beyond 

 mandible about 1 eye-diameter; Eye small in adult, large in young, 



