1878.] Zoology. 557 
a light gray color. Somé portions of the body were already clear 
of it, but it still remained on the larger part thereof. This 
the sheep I had seen a week before. A foetal animal belonging 
to this species, which I had occasion to examine in 1875, showed 
a similar character of its covering. The skin was no longer fresh 
when I obtained it, and the proof was not so positive as in this 
instance, 
The second question is not so readily answered. During the 
summer of 1877 | I saw several thousands of antelopes, and passed 
through regions over which they had roamed for years. There I 
found quite a number of hollow antelope horns, lying on the 
ground. Each time I made careful search, in order to discover 
other bones of the animal, but in eight instances could discover 
none. It may be that coyotes dragged the horns to the places 
where they were found, but in this case other portions, either o 
skin or skeleton, would probably have occurred near the spot. A 
young male antelope fell a victim to one of my bullets, cp upon 
examination I found that one of his horns had been injur 
slight exertion, only, sufficed to remove the horn from its ‘ “core” 
If antelope do Shed their horns, a supposition to which I incline, 
they probably do it at irregular intervals, and perhaps only as the 
result of disease or injury. Not being a professional zoologist, I 
am unable to point out the affinities of these animals, which 
would render the shedding of horns either more probable or less, 
in accordance with their present taxonomic position —/. M. 
Endlich. 
(Note by the Editor). After several years familiarity with the 
prong-horned antelope in a wild state, I may say that I have 
never met with an pidet case of shedding of the horn sheath. 
Shed horn-sheaths are not common where these animals abound, 
as they should be, were the phenomenon usual. ` Their Ste 
ance on the animal at times indicates that they may be shed, and 
I suppose that the evidence is sufficient that the shedding occurs. 
But it is not periodical nor even frequent—Z£. D. Cope. 
Discovery OF TWO REMARKABLE GENERA OF MINUTE Mvnia- 
PODS IN FarrMoUNT PARK, PHILADELPHIA—It has been my 
good fortune to detect Polyxrenes and Pauropus in our splendid 
_ Park, thus adding two hitherto unnoticed articulates to the fauna 
of Pennsylvania. The former I regard as the P. T of 
Say, and is about one-tenth of an inch long. Its detailed 
is reserved for a future article. The Pauropus appears to be etei 
with P. huxleyi of Lubbock, at least after a most careful — 
copical scrutiny of a number of specimens, I could find no char- 
acter that would warrant specific distinction; the pyriform body 
between the two styles which surmounts the shorter of the two last. 
_ Segments of the antenne being sessile as in the aforementioned 
Species. The habitat was in the decayed roots of an old om Boo 
a E 
