208 CONTRIBUTIONS TO . NORTH AMERICAN ICHTHYOLOGY - IV. 



broad, reaching just about to the anterior margin of eye; therefore', 

 apparently longer than in the next, owing to the shortness of the snout. 

 Maxillary contained -I times in the length of the head ; mandible ."> times. 

 .Month inferior. Eye lr| in head. Adipose tin very large, extending 

 behind anal. Depth 1) in length ; head -l'-|. D. 11-14; A. 11; scales 

 S-74 to 88-7. (.1 ill-rakers short and thick, shorter than pupil; ab/nit 

 111 below the angle. Clear streams and lakes from the Kocky Mount- 

 ains to the Pacific; abundant in the Sierra Nevada. An excellent 

 food-iish ; variable. 



l, 1'n.c. Acatl. Nat. Sci. IMiila. l^.jC), 13 J; Giiutlicr, vi, 137.) 



C. <Jlia.d"ilaleraIis Richardson. I'Hot-Jixh; Mcnomoncc H'ltitt'-fish ; Shntl 

 fl'aiti r: 



Body elongate, not elevated nor much compressed, the back rather 

 broad, the form more terete than in any of the other species. Mouth 

 very small and narrow, inferior, the broad maxillary not reaching to 

 opposite the eye, ~>.\ in head. Head long, the snout compressed and 

 bluntly pointed, its tip not below level of eye; profile not strongly de- 

 curved. Preorbital wider than pupil. Mandible originating under mid- 

 dle of eye, :>.' 4 in head. Adipose lin small. (Jill-rakers short and stoutish, 

 but rather longer than in C. icHlittiiiNoni. Head 5 in length ; depth 1 ;. 

 D. 11; A. 10; scales 9-30 to 90-8. Color dark bluish above, silvery 

 below. Lakes of New Hampshire, Upper (Ireat Lakes, northwestward 

 to Alaska; abundant in cold, deep w-.ters. 



, Franklin's .lourn. \*\>'.\, 711 ; Ci'mtlirr, vi, 17;>: 

 1'rcscuii, AMI T. .Joimi. Sri. Arts \i, :;;_'. i-r>i : Coregonua n&vw-angliw Giiuiher, vi,l~:i.) 



489. . keiitiicotti Miln.-.-, .Mss. .-j>. nr. 



I'.ody oblong, elliptical, the back not greatly elevated. Head very 

 short and deep, the snout bluntly dei-urved and not projecting, the 

 depth of the head at the nape greater than the distance from the end of 

 the snout to the operciilar margin. Mouth not inferior, the jaws almost 

 equal : maxillary extremely short and broad, not quite reaching to the 

 eye, its length .V. in head, its supplemental bone broad-ovate, broader 

 than in rlii/H-ifonitix. dill rakers us in C. <iit(ttlriltttertilit<. I'reorbital 

 rather l>road. Coloi- pale, as in c!ii>>r{/'<irni is. Head f ] in length. 1). 

 11: A. I.".: scales lO-'.m-lO. Types Xos. S!71 ;ind '.tCOO of the Cnited 

 States National Museum from Fort dooil 1 lope, British America, and 

 ^ "neon Kiver, Alaska, respectively. A strongly marked species, well 

 distinguished among the American Ibrms by the very obtuse head, but 

 perhaps identical with some Siberian species. 



