~ 
160 The American Naturalist.  [ February, 
This species belongs to the Spilosoma group, and in all probability 
finds its closest affinity in S. cryptospilotus, from which it appears 
separable by some slight differences in size, color, and the cranial 
characters noted. 
NEOTOMA TORQUATA, sp. nov.—Above, head and body light Van- 
dyke-brown, washed with black; more intensely in the mesaldorsal 
line, insensibly becoming entirely obliterated before reaching the white 
of lower parts. Hairs of all parts, except ears, feet, tail, and a small 
patch on chin, slate-gray for the greater part of their length. Above 
ringed for about 3 mm. with Vandyke-brown, followed by a slight 
tipping of black. In the dorsal line are interspersed longer hairs 
nearly or completely lacking the rufous ringing, whose place being 
occupied by the greater extension of the black tips, gives to this part 
its darker tone, which may be described as hair-brown. Belly nearly 
pure white, slightly tinged with yellow, and in parts soiled by the slate- 
gray of roots showing through the white tips of hairs. Breast occupied 
by a well-defined collar, 20 mm. in width, of same color as sides of 
body. Under surface of neck grayish-white, gradually shading for- 
ward to slate-gray to form an ill-defined band, about 4 mm. in wi ! 
that covers the upper lips, excepting a narrow line of white encircling 
the mouth parts. A small, circular area on chin of pure white, includ- 
ing roots of hairs. Upper third of circumference of tail clove-brown, 
sharply separated from the dirty white of its sides and under parts. 
The tail is closely covered with short, stiffish hairs, through which only i 
upon very close scrutiny can the annyli be seen on sides and beneath. a 
Feet white, slightly washed with drab a trifle below carpus and ure : 7 
Outer surfaces of legs and arms shading from Vandyke-brown above ee 
to drab below. Inner surfaces as belly. Ears seal-brown, nearly naked oat 
on posterior external surfaces, rather scantily covered with short seal- ` 
brown hairs on internal and anterior external surfaces. ' ystacial hen & 
black for half or two-thirds of their length, terminating in white; “o 
longest being 65 mm. Soles of fore feet entirely naked, ©" z 
warts ; of hind feet, well covered with hair for posterior half, having 
six warts. Eyes blue-black, very large and exserted. Their diame 
in the dried skin is about 8 mm. oa ee 
Measurements, taken in flesh: Length from tip of nose ' cae 
tail vertebrae, 338 mm. (13.33”); tail vertebre, 160 (6.37')3 ig tee 
16 (.69”) ; pes, 35 (1-41”); ear, 21 (.84"). e 
The skull shows no peculiarities of note. Length, 45> 3 
width of zygomæ, 23; length of both upper and lower yee” á 
9; length of inferior mandibula from arthral bead to simi 
i 
