578 REPORT OF THE HARVARD AFRICAN EXPEDITION 
of Comparative Zoédlogy has others from Ebolowa in the Cameroons. Our cap- 
ture of a male in the interior of Liberia at Kassata, September 28, is the first 
record of it in the western extension of the forest on these coasts. There is 
a strong probability, however, that Temminck’s Phyllorhina cyclops from the 
Boutry River, Gold Coast, is the same species. His description of the color and of 
the peculiar woolly hair and unusual nose-leaf, coincides perfectly, but the 
measurements given are far too small. Possibly through some mistake the 
dimensions as published were really of some other specimen, but if not then 
there must be a larger and a smaller species in the West African area that differ 
chiefly in size. 
Our specimen was shot in a dark room of a disused house which we occupied 
for two nights. Our attention was attracted by hearing the loud swish of its 
wings entering the house about an hour before sunrise, and on later investigating, 
we discovered the bat hanging against the top of the whitened wall of a completely 
dark room. Evidently it had resorted here regularly for a considerable time for 
a small pile of droppings had accumulated under the spot, as well as a deposit 
of cockroach wings representing many individuals, of a light brown color, which 
Dr. Joseph Bequaert recognized as those of a flying instead of a ground-living 
species. Evidently the bat had caught these and brought them in to eat while 
at rest. 
VESPERTILIONIDAE Vespertilionid Bats 
Pipistrellus stampflii (Jentink). Little Thatch Bat 
Vesperugo stampflui Jentink, Notes Leyden Mus., vol. 10, p. 54, 1888: Farmington River, Liberia. 
Small, forearm about 27 mm.; light brown above and below, the fur everywhere dark slaty at 
the base. West Africa. 
Apparently the small bat described by Jentink as V. stamp/flii differs in no 
way from the other common bat which he records as Vesperugo nanus (= Pipis- 
trellus) except that its membranes were margined with white, a condition 
occasionally found as a chance variation in various species. The forearm meas- 
urement as published — 32 mm. — is shown by Miller to be a misprint for 27. 
We cannot see either that Miller’s Pipistrellus minusculus, based on three 
specimens from Mount Coffee is really different. Evidently Miller was misled 
by Jentink’s surmise that one of the three specimens compared with the type 
of stampflic was still smaller and slightly different in color, as might have been 
expected when compared with an old alcoholic specimen of twelve years before. 
The length of tail is said to be 24 mm. in the type of stampflii but it may be 
shrunken in alcohol, while in our series, it ranges from 28 to 33 mm. (measured 
in the flesh) and in minusculus is 31. The relationship of this common species 
to P. nanus (Peters), is doubtless close, but specimens of the latter from the 
East Coast of Africa are a little larger (forearm 32 mm.) and are paler on the 
under side. It may prove eventually that stampflii is the West African race 
of nanus. ‘This is one of the species in which the baculum is not present. 
At every native village in Liberia this little bat is well known and numbers 
were always brought to us when we asked the villagers to bring in bats. They 
