782 
PROCEEDINGS OF THE NATIONAL MUSEUM. 
siderably greater than in the allied .species, and the interpterygoid 
space is wider in proportion to its length. Antorbital region more 
inflated than in either of the allied species. 
The teeth show no peculiarities of form. They are intermediate in 
size between those of irippoHidcnm h'lcoloi' and //. fnlvus. 
Measurements. — For external measurements see table below. 
Cranial measurements of type: Greatest length, 16.4 (16) mm.;' 
basal length, 14 (14); basilar length, 12,8 (12. S); zygomatic breadth, 
8.4 (8.2); least interorbital breadth, 2.2 (2.4); mastoid breadth, !>.4 
(8.6); greatest length of braincase, 10 (10); greatest breadth of brain- 
case abov'e roots of zygomata, 7 (7); frontopalatal depth (at middle of 
molar series), 3 (3); depth of braincase, 5.8 (5.4); maxillary toothrow 
(exclusive of incisors), 5.6 (5.4); mandible, 10 (10); mandibular tooth- 
row (exclusive of incisors), 6 (6). 
Specimens examined. — Twenty-five, all from the type locality. 
Remarks. — Though in some respects intermediate between Ilippo- 
sideros hicolor and II. fulvus., this species is so readily distinguishable 
as to need no special comparison. 
Table of measurements of Hijjjjosideros nicobarulsc. 
01 
Number. 
Sex. 
FJ 
bo D 
a ' be 
60 
00 
a 
a 
a 
03 
O 
"o 
■O ^ 
Xi 
■J= 
o 
o 
3 
o 
'3 
S 
s 
i 
OS 
o 
C8 
2 
o 
J3 
3 i:h 
S -2 
o 
03 
oi 
H 
H 
H 
fe 
U 
b. 
H 
03 i H 
Ik 
E 
H 
w 
Mm 
Mm 
Mm, 
Mm 
Mm 
Mm 
Mm 
Mm Mm 
Mm. 
Mm, 
Mm 
Mm 
Mm 
111871 
Male 
do.... 
78 
81 
77 
75 
75 
30 
33 
31 
29 
?9 
17 
17 
16 
16 
18 
7 
6.4 
7 
7 
6.8 
9 
10 
9.4 
9 
10 
40 
40 
39 
39 
40 
5.6 
5.4 
5.6 
6 
6 
34 64 
32 61 
32 : 63 
32 ! 66 
32 1 65 
50 
51 
49 
52 
51 
53 
54 
52 
55 
54 
18 
17.4 
19 
18 
19 
15.4 
15 
14.6 
14 
14 
17 
11187-2 
18 
111874 ' 
do .... 
17.6 
111876 
do .... 
17 
111885 
do.... 
17.4 
111895 
do 
78 
S3 
31 
3? 
17 
18 
7 
6.6 
9 
10 
39 
41 
5.6 
5.6 
33 1 65 
33 65 
60 
53 
54 
55 
19 
20 
15 
16 
17 
111875 
Female . . . 
18.4 
111877 
do.... 
76 
97 
16 
7 
9 
40 
5 
32 j 63 
49 
53 
18.6 
15 
16 
111887 
do.... 
85 
81 
83 
34 
33 
34 
18 
18 
18.4 
6.8 
7 
6.6 
10 
11 
10 
40 
41 
42 
6 
6.6 
6 
32 65 
35 68 
33 65 
52 
54 
52 
56 
56 
55 
20 
19 
19 
15.6 
15 
15 
17.4 
111888 
do.... 
18 
111894 
... .do 
17.6 
1 Type. 
Genus PTEROPUS Brisson. 
PTEROPUS NICOBARICUS Zelebor. 
1846. Pteropus edulis Blyth, Journ. Asiat. Soc. Bengal, XV, p. 367. (Nicobar 
Islands.) 
1861. Pteropxis nicobaricus Fitzinger, Sitzungsber. Math.-Naturwissensch. CI. 
Kais. Akad. Wissensch., Wien, XLII (1860), p. 389. 1861. {Nomen nudum. ) 
1869. Pteropus nicobaricus Zelebor, Reise der osterreichischen Frigatte Novara, 
ZooL, I (Wirbelthiere), 1, Mamm., p. 11. (Car. Nicobar.) 
The earliest notice of the Nicobar fruitbat appears to be that in 
' Measurements in parentheses are tliose of an adult female Hipposideros hicolor from 
Sumatra. Some of the cranial dimensions of an adult male H. fulvus from Deccan, 
India, are as follows: Greatest length, 18; basal length, 15.6; zygomatic breadth, 9.4; 
interorbital constriction, 2.8; maxillary toothrow (exclusive of incisors), 6.4. 
