42 CYPRIXIl)^ OF KASTEKX CANADA. 



7. C. plumbeus rubi^laterjjflls Var. Nov., Cox 



Size small, stout; snout short and blunt; mouth -small, termi- 

 nal ; no barbel. Eye 1 or less in snout, 31 in head. Fins all small; 

 dorsal insertedj'ar back^lk times width of eye behind ventral, about 

 midivay between snout and end of caudil, its anterior rays shortened 

 and free margin convex. Anal same form. Caudal peduncle 

 hardly compressed, with fin less emaiginate. Vent more posterior. 



Scales smaller and more closely imbricated than in other forms, 

 hardl}' reduced forward, the exposed horder more broadly round- 

 ed : about 42 in front of dnrs(d. Lateral line less decurved. 



Coloration brilliant. Back olive, soon passing into steel blue: 

 a dark lateral band from snout through eye to base of caudal 

 most distinct on posterior half of the body ; a pale one above. 

 Sidesfrom operculum to baseof ciudil almost scarlet in life. 



H. 4h D. 4i. D. 8, A. 8. Scales 12-70-8. Length 4 inches. 

 Locality : Harriman's Lake and Brook, Grand Cascapedia ; Nou- 

 velle (New Carlisle) Lake, Gaspe, P. Q. 



A handsome little fish, deserving recognition as a well- 

 marked variety. 



8. Semotilus atromaculatus Mitcli. 



Horned Dace. 



This well known fish is distributed all over eastern Canada; 

 for, being partial to small streams and the upper courses of 

 rivers, where it mingles with the Black-nosed Dace, Rhinichthys 

 atronasuset cataract se^ it must, in time, find its way to every 

 river system. As would be expected, it is found to vary a good 

 deal, especially in the size and shape of the head and number 

 and character of the scales. Mountain forms, notably those of 

 the rivers of Gaspe, P. Q., have smaller heads with more point- 

 ed muzzles, and show an increase in the scale formula ; the dor- 

 sal fin has eight instead of .sewn rays, and the coloration is less 

 duskv. The fish are also smaller. Specimens from Ontario, 

 kindlv placed at my service by Professor Macoiin, are heavier, 

 anteriorly, with broader lieads and blunter muzzles, and of more 

 ilusky coloration. 



