266 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. i. 



ber of specimens available to judge from. The skull described 

 below, may have merely peculiar characteristics pertaining to 

 one individual and would therefore be a very unsafe guide to an 

 opinion in the matter. 



It belonged to a very old male and is somewhat unusual from 

 the convexity of the superior outline. The frontal descends 

 rapidly from above the orbits to the nasals, giving a very high and 

 prominent forehead, highest behind the orbits, and then the 

 outline descends with a moderately steep slope to the supra- 

 occipital. A sagittal crest rises from the anterior portion of the 

 parietal, reaching its maximum height at the supra-occipital. 

 The face is considerably prolonged and the outline of the nasals 

 turns upward towards the anterior end. The teeth are large and 

 much worn, nearly smooth on the crown, the cups of "the 

 molars having practically all disappeared, and necrosis of the 

 right mandible, near the symphysis, has caused the loss of 

 the canine and three incisors on that side. 



Length from supra-occipital to alveolus of middle incisor, in- 

 side, 325 mm.; occipito-nasal length, 285; width at postorbital 

 processes, 106. These last are broad, short, rather blunt, and 

 turn downward. Zygomatic width, 189; interorbital breadth, 73; 

 length of nasals, 77; lower lip of foramen magnum to anterior 

 edge of basisphenoid, 80; posterior edge of palate to alveolus of 

 middle incisors, 137; palatal fossa, 51 ; posterior edge of last 

 upper molar to anterior edge of canine along alveolus, 100; 

 length of last upper molar 27, width 14. 



Two specimens : Lake Southerland. 



FAMILY MUSTELID.E. 



21. Mustela penanti pacifica. 



Mustela canadensis pacifica. Rhoads' Jour. Am. Philos. 

 Soc., 1898, p. 435. 



In certain parts of the mountains the fisher is not infrequently 

 met with. Two specimens were obtained a male and female. 

 The first was shot out of a tree, among the branches of which he 

 had taken refuge ; the other was caught in a trap. The female 

 is much the darker of the two. The male is much more grizzled 

 grey on the head and neck than the ordinary eastern fisher, 

 though I have a specimen in the Museum from Wisconsin that is 

 also rather remarkable for the extent of this same coloring that it 

 exhibits. This animal is exceedingly quick in all its movements, 



