92 



NOETE AMEEICAJT FAUNA. 



[No. 38. 



Genus NETJItOTIlICHUS Giinther. 



Neurotrichus Giinther, Proc. Zool. Soc. London, 1880, p. 441, October, 1880. 

 Neurotriclius Giinther, Proc. Zool. Soc. London, 1880, plate 42, October, 1880. 

 Neurotrichus Forbes, Zool. Record, vol. 17, Mammalia, p. 14, 1881. 

 Neourotrichus P-ye, Zool. Record, vol. 17, Index, p. 8, 1881. 



Tyj)e species. — Urotrichus gihhsii Baird. 



GeograpMc range. — Pacific coast region of North America west of 

 the Cascades and Sierra Nevada, from southwestern British Columbia 



(Fraser E-iver region) south to 

 Fremont Peak, Monterey County, 

 CaHfornia (fig. 23). 



External characters. — Smallest of 

 the American Talpidse ; body some- 

 what robust, not much depressed. 

 Tail moderate in length (about half 

 as long as head and body), moder- 

 ately fleshy, constricted at base, 

 scaled, yery distinctly annulated, 

 sparsely covered with coarse hairs 

 (fig. 24) . Head conoidal, relatively 

 long, not much depressed. Snout 

 elongate, terminating in a naked 

 disk or pad, apical superior surface 

 naked to line of anterior edge of 

 nasals; nostrils lateral in terminal 

 pad, slightly crescentic, with an- 

 terior end of crescent enlarged and 

 its concavity upward (fig. 25) . Eyes 

 minute (relatively about as in Con- 

 dylura), concealed in the fur. Au- 

 ricular opening large. Legs short, 

 weak (relatively as in Condylura). 

 B2029-103 Feet large, not fleshy, scaled, sparse- 



''S;i«7rS"l TVr;."r'^. t ^7 ^^^''-^'l '^^'^'^ beW. Fore 



hyacinthinus. feet hardly handlike, the palms 



longer than broad, toes relatively long. Fore claws relatively 



long, not broad, not depressed (fig. 26). Hind feet long and 



narrow, broader distally than proximally; six tubercles (varying 



shghtly in position) on each hind foot, usually located one at 



base of third digit, one interdigital between the third and fourth 



digits, one between the fourth and fifth digits, one postero- 



interdigital between the second and third digits, and two near the 



center of the sole. Hind claws moderately long and slender, slightly 



compressed laterally, acute (fig. 27). Toes not webbed. Pelage 



similar in general to that of Condylura, but shorter, finer, and with 



