1905.] | OF THE GENUS RHINOLOPHUS. 87 
is the true reason of the exceedingly confused state in which this 
group of Bats has remained, making a safe determination of 
Specimens procured almost impossible. 
Geographical races. There seems to be two forms of Rh, bor- 
neensis, differing, slightly, in the size of the ears, and in geogra- 
phical habitat. 
6 a. RHINOLOPHUS BORNEENSIS Peters, TYPICUS. 
Rhinolophus Borneensis Peters, MB, Akad, Berlin, June 25th, 
1861, p. 709. 
Rhinolophus minor (partim, nec Horsf.), Peters, MB. Akad. 
Berlin, 1871, p. 306; Dobson, Cat. Chir. Brit. Mus. (1878) p. 114. 
Rhinolophus afinis (partim, nec Horsf.), Dobson. op. cit. (1878) ) 
pele 
Diagnosis. Kars slightly shorter: 16-17 mm., and narrower : 
12°2-12°8 mm. Forearm 41°:2-43°7 mm. 
Details. In one specimen (from Banguey Isl.) the summit oi 
the sella is completely square-cut; in the others (Labuan, N.W. 
Borneo) it is broadly rounded off. This is, no doubt, an individual 
variation, but, it would seem, of more frequent occurrence in indi- 
viduals inhabiting smaller islands (cf. Rh. megaphyllus monachus, 
Rh. nanus, Rh. truncatus, Rh. borneensis spadia). 
Measurements. On p. 88. 
Distribution. N.W. Borneo; Labuan; Banguey. 
6 6. RHINOLOPHUS BORNEENSIS SPADIX Miller, 
Rhinolophus affinis rouxi (non Temm.) Thomas, Nov. Zool. i. 
(1894) p. 656. 
Rhinolophus spadi« Gerrit 8. Miller, Jr., Proc. Wash, Ac. 
Sci. ii. (March 26th, 1901) p. 136. 
Diagnosis, Kars slightly longer: 17-19°5 mm., and broader : 
12°5-14:2 mm, Forearm 42°5- “46-3 mm, 
Details. In one specimen (Sirhassen Isl.) the summit of the 
sella is completely square-cut ; in all the others (one of them from 
the same island) it is broadly rounded off. 
Measurements. On p. 88. 
Distribution. 8. Natunas (Sirhassen); Karimata Group (Kari- 
mata and Pulo Sarutu). 
Technical name. The type of “ Rh. spadix,” in the Washington 
Museum, is from Sirhassen. There is a specimen from the same 
island in the British Museum. I am indebted to Mr. Miller for 
the loan of a paratype, also from Sirhassen, and of the series from 
the Karimata Group, collected by Dr. Abbott. 
Remarks. 1 should not have separated these two forms (if they 
be so) of borneensis, if the latter of them had not, accidentally *, 
got aname. There is no tangible difference in the skulls, not even 
* When describing Rh. spadix as a new species, Mr. Miller compared it with. 
Rh. affinis. He could not, very well, compare it with Rh. borneensis, which was 
regarded as identical with Rh. minor. 
