388 MR. G. E. DOBSON ON THE GENUS CHALINOLOBUS. [June 1, 
line drawn from the middle of the humerus to the middle of the 
femur, and upon the interfemoral triangularly as far as the end of 
the third caudal vertebra. “Beneath, the wing-membrane is covered 
as far as a line drawn from the elbow to the knee-joint, and a few 
thinly spread hairs are ranged in short parallel rows on the mem- 
brane posterior to the elbow and forearm. 
Teeth similar to those of C. argentatus, but not so slender, and 
the upper incisors are more inclined inwards and have the small pro- 
jection on their outward sides near their extremities. 
Length (total) about 3 inches, of which the tail appears to mea- 
sure half; ear 0-4, tragus 0°16 x0'-08; forearm 1'°5; thumb 
0"-23; second finger—metacarp. 1'°5, Ist ph. 0!"5, 2nd ph. 1/0; 
third finger—metacarp. 1''"4, 1st. ph. 0!"35, 2nd ph. 0°45; fourth 
finger—metacarp. 1/25, 1st ph. 0-3, 2nd ph. 0'"3; tibia 0/63 ; 
foot and claws 0!'-28. 
Hab. Fernando-Po Island, west coast of Africa. 
This species resembles C. argentatus, but is at once distinguished 
by the presence of a postcalcaneal lobe, and by its smaller size. 
CHALINOLOBUS VARIEGATUS. 
Scotophilus variegatus, Tomes, P. Z. S. 1861, p. 36*. 
Closely allied to C. argentatus, which it resembles in general form, 
in size, and in the colour of the fur. It is, however, readily distin- 
guished by the shortness of the lobule at the base of the inner side 
of the ear-conch, and by the lower incisors, which are crowded 
between the canines and placed at right angles to the direction of the 
jaw. The teeth are similar to those of C. poensis, not slender and 
extremely acute as in O. argentatus; and this condition is present 
in immature specimens also, so that the comparative bluntness of 
the teeth is not due toage. The head is also longer, the ears larger, 
and the face is covered with hair to within a short distance from the 
end of the nose. The lobes of the lower lip are smaller, and the 
under surface of the lower jaw not raised on the sides as in C. ar- 
gentatus. 
The calcaneum is quite similar to that of C. argentatus; and there 
is no postcalcaneal lobe. I have examined the type specimen of 
this species, and find that the postcalcaneal lobe described by Tomes 
has been produced by distortion in drying. 
Length (of a ¢ preserved in alcohol) 1-9; tail 1’"8; head 0°65; 
ear U6, tragus 022; forearm 1°55; thumb 0'"3; 2nd finger— 
metacarp. 1'4, Ist ph. 0'°6, 2nd ph. 10; 4th finger—metacarp. 
1-3, Ist ph. 0°3, 2nd ph. 0'"3; tibia 0-7; foot and claws 0:3. 
Hab. Otjoro, S.W. Africa. 
* The type of this species from Mr. Tomes’s collection (and also a duplicate 
in alcohol) is preserved in the Berlin Museum, which I have lately visited ; and 
Prof. Peters has most kindly afforded me every opportunity for examining the 
invaluable collection of Chiroptera, which has been brought together from all 
parts of the world by his unwearied exertions. 
