190 



SALMONID-D. 



of the maxillary broad, siibsemicircular. The length of the mandible 

 is more than the least depth of the taU. Back arched. The origin 

 of the dorsal fin is midway between the occiput and the adipose fin. 

 Pectoral as long as, or rather longer than, the head without snout. 

 Lake "Wenern. 



a. Fine female specimen, 18 inches long. Lake Wenern. Presented 

 by L. Lloyd, Esq. 



h. Skin, 19 inches long. Lake Wenern. From Mr. Yarrell's Col- 

 lection. 

 This species agrees in most characters with C. wartmanni, but has 



the body much more elevated. Widegren and Malmgren appear to 



have confounded it with C. fera and 0. widegreni, which have the 



snout obliquely, and not vertically truncated. 



24. Coregonus hmmlis. 



M&rtensniess-sik, Lloyd, Scand. Advent, i. p. 133 (c, fig. med.). 

 B. 8-9. D. 13. A. 15. L.lat. 90-96. L. transv. 10/11. Vert. 60. 

 The height of the body is one-fourth of the total length (without 

 caudal), the length of the head is two-ninths. The diameter of the 

 eye is one-fifth of the length of the head, and two-thirds of that of 

 the snout. Head rather low, snout somewhat produced, vertically 

 truncated in front, with the lower jaw the shorter. Interorbital 

 space flattish, its width being equal to once and two-thirds the 



