198 SALMONIUJi. 



t American sjjecies. 



37. Coregonus clupeiformis. 



Shad-Salmon ; Freshwater-Herring. 



Salmo chipeiformis, Mitch. Arner. Month. Mag. 1818, ii. p. 321. 



Coregonus clupeiformis, Dekay, Netv York Fauna, Fiah. p. 248, pi. 60. 



fig. 198 ; Cuv. <^ Val. xxi. p. 523 ; Af/assiz, Lake ISvper. p. 339. 

 artedi, Lcsueur, Journ. Ac. Sc. Philad. i. p. 231 (with a plate, 



misnamed C. ulhus); cop. hj Hichards. Faun. lior.-Amer. iii. p. 203; 



Kirtlaml, Best. Journ. Nat. Hist. 1842, iv. p. 231 ; Storer, Si/nopsis, 



p. 199. 



D. 12. A. 14. L. lat. 76-77. D. transv. 8/10. 



The height of the body equals the length of the head, which is 

 two-ninths of the total (without caudal) ; the distance of the occiput 

 from the front margin of the upper jaw is less than one-half of its 

 distance from the origin of the dorsal fin. The diameter of the eye 

 is less than the length of the snout (which is pointed), or nearly one- 

 fifth of the length of the head ; maxillary long and broad, its length 

 being contained thrice and one-third in that of the head. Length of 

 the mandible much more than the least depth of the tail. Pectoral 

 shorter than the head, without snout. There are seven longitudinal 

 series of scales between the lateral line and the root of the ventral 

 fin. Appendage of the ventral fin half as long as the fin. 



Lakes Erie and Ontario. 



a-h. Adult (11-13 inches long): skins. Ontario. From Dr. Par- 



nell's Collection, 

 i. Adult. Purchased of Hr. Brandt. 



38. Coregonus lucidua. 



HeiTing-SaLmon. 



Salmo (Coregonus) lucidus, Richards. Faun, Bor.-Amer. iii. p. 207, 

 pi. 90. fig. 1. 



D. 14. A. 14. L. lat. 83. L. transv. 10/12. 



The height of the body is a little more than the length of the 

 head, which is one-fifth of the total (without caudal) ; the distance 

 of the occiput from the front margin of the upper jaw is contained 

 twice and two-thirds in its distance from the origin of the dorsal fin. 

 The diameter of the eye is less than the length of the snout (which 

 is pointed), or one-fifth of the length of the head ; maxillary long 

 and broad, its length being two-sevenths of that of the head. Length 

 of the mandible much more than the least depth of the tail. There 

 are eight longitudinal series of scales between the lateral line and 

 the root of the ventral fin. Appendage of the ventral fin more than 

 half as long as the fin. 



Great Bear Lake. 



I consider this species to be distinct from C. clupeiformis; the 

 characters are taken from the typical specimen in the Haslar Col- 

 lection. 



