•652 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



" The ears appear to be much as in S. cooperi and its allies, and larger 

 than in 8. hoyi. The 5th hind claw reaches half-way over the penul- 

 timate phalanx of the 4th digit. The heels appear to be hairy behind, 

 without a central linear naked space. The hairs at the ends of the toes 

 appear of unusual length, extending beyond the claws. The color, as 

 far as the hair remains on the alcoholic specimen, is a nearly uniform 

 rufous, rather paler beneath ; the fur is long." 



4. SoREX (NoTiosoREX) EVOTis Coucs n. sp. 



Teeth 28, and dentition otherwise substantially the same as that of ^. 

 crmvfordi. (Lower incisor with one decided lobe, not seen in N. crawfordi, 

 but the difference may be due to age of the teeth, a supposition 

 which the more decided coloration of the points of several anterior 

 teeth of JSf. evotis tends to confirm.) 



Bicolor, but not very sharply so. Above, clear light brownish cine- 

 reous, with a decided hoariness; below, cinereous gray, with scarcely a 

 shade of rusty. Tail colored to correspond. Feet brownish-white. Claws 

 and most of the whiskers colorless. The coloration is very nearly 

 that of some specimens of Crocidura ^^leucodon^^ but rather more cine- 

 reous above, and less distinctly bicolor. 



Tail very short, almost Blarina-like ; rather scant-haired, with slight 

 terminal pencil, scarcely or not one third as long as head- and body, 

 and about equaling the head alone. Snout not peculiar. Bars ex- 

 tremely large, scant-haired, conspicuous in the fur of the parts, recall- 

 ing Crocidura ; structure, however, as well as can be judged, not pecu- 

 liar. Soles naked to the heels along a narrow linear strip. Pelage 

 short, close, and sleek. 



Length (of a well-prepared skin, closely approximate) 2.90, Tail-ver- 

 tebrae 0.90,with hairs 1.00. Hind foot 0.45. Fore foot 0.25. Snout to in- 

 cisors about 0.15; to angle of mouth 0.30; to eye 0.45 ; to ear 0.80; to 

 occiput 1.00. 



Hah. — Mazatlau, Mexico (F. Bischoff). 



Type Ko. 9066, Nat. Mus. (Smiths. List.). 



The condition of N'. craiofordi does not permit entirely satisfactory 

 comparison ; but the material, so far as it goes, indicates specific dis- 

 tinction. The type of craiofordi is certainly adult, as shown by the 

 teeth, hence its smaller dimensions are not attributable to immaturity. 

 The more salient i)oints of difference may be contrasted as follows : — 



N. craiofordi. — Length 1.90 ; tail- vertebrae 1.10 ; foot 0.40 ; tail about 

 as long as trunk. Color " light chestnut-brown, paler beneath". 



N. evotis. — Length 2.90 ; tail-vertebrae 0.90 ; foot 0.45 ; tail about as 

 long as head. Color hoary brownish-cinereous, ashy-gray beneath. 



5. Blarina (Soriciscus) mexicana Baird, n. sp. 



JBIarina mexicana, Baird, MSS. ined., 1861. 

 Teeth 30 ; upper unicuspids 4 ; first and second equal to each other 

 and largest, exceeding a little the posterior hook of the incisor ; third 



