MAMMALS FROM BURMA 923 
41. Rhinolophus affinis rouxii, Temm. (?) (PI. XI, fig. 3). 
. Taho. 
©. Head and body 50; Forearm 45; Nose leaf 11 x 7; Ear 14. 
Similar to the typical variety in all essential respects, but 
markedly smaller, and the nose leaf with a small secondary 
leaflet on each side external to the horseshoe (see plate XI, 
fig. 3), as in many of the species of Hipposiderus, and with 
the terminal erect portion much shorter, and more abruptly 
narrowing above. 
The proper treatment of this form, has cost both the Mme 
Doria and myself much trouble and consideration. During his 
expedition Signor Fea obtained at Taho no less than 12 examples 
of this, and 43 of the larger typical form, finding them at the 
same localities, and in all cases so absolutely distinct from each 
other that it is at first sight hardly possible to believe them 
specifically identical. But an examination of the series from dif 
ferent localities in the British Museum proves that however 
distinct they may be in the Karin Hills, yet that intermediate 
specimens occur elsewhere. The type specimen of R. a/finis, 
from Java, is unquestionably of the larger form, as also are 
all the examples from the Indian peninsula and Ceylon. Two 
specimens from Labuan collected by Mr. Dillwyn are certainly 
of the smaller race, and another one from Darjiling, although 
larger (forearm 47 mm.) yet has the nose-leaf characters of the 
same race. On the other hand other Darjiling specimens appear 
to be more or less intermediate, and on the whole it seems 
better to recognise the present form only as a subspecies, which 
may or may not hereafter have to be raised to the rank of a 
species. Its identity with Temminck’s R. rouxi is also another 
point which remains to be settled. 
The presence of supplementary external leaflets not having 
been noticed before in the genus Rhinolophus it would seem as 
if their occurrence would be of at least specific importance, but 
in all the species, and markedly in the true R. a/finis, there is 
an elevated ridge running along the cheek just below the sides 
of the horseshoe, and in some cases this is so marked, and has 
