1905. ] OF THE GENUS RHINOLOPHUS. 89 
Skull. As in borneensis, but considerably smaller; the nasal 
swellings are, also proportionately, narrower than in the Bornean 
species (perhaps as a consequence of the much smaller nose- 
leaves). 
Dentition (two skulls). ps half in row (one skull), or external 
(the other). p, and p, in the former skull, of course, separated 5 
in the latter almost in contact. p° in the tooth-row. Upper 
canine and p* widely separated. 
Type. Qad. (in alcohol), §. Camarinas, Luzon, Philippine 
Islands. Collected by L. M. McCormick, Esq. Un. St. Nat. Mus. 
no. 101966. 
Remarks. This species is readily distinguished from any other 
form of the simplex group by its small size, narrow horseshoe, 
and short ears. The shape of the connecting process ought to 
prevent a confusion with the equally small species of the minor 
group, to which it, in other respects, bears a very striking 
external resemblance. 
8. RutyoLopHus MALAYANUS Bonhote. (Plate ITI. fig. 6.) 
Rhinolophus malayanus Bovhote, Fasc. Malayenses, Zool., 1. 
(Oct. 1903) p. 15. 
Diagnosis. Closely allied to Rh, borneensis, but median anterior 
nasal swellings somewhat more differentiated. Small: forearm 
4]:2-42°8 mm. 
Details. Externally this Bat is exceedingly like kh. borneensis, 
but the shape of the anterior nasal swellings is somewhat different. 
The colour, too, seems to be constantly different. 
The sella is, in vertical direction, a trifle shorter, but the 
difference is scarcely appreciable without actual comparison with 
borneensis. The lateral margins of the sella are, practically, 
parallel from base to summit; an extremely faint constriction 
can be traced, at least under a lens; summit of sella rounded. 
Plagiopatagium inserted on tarsus, or very nearly so. 
Colour. (1) Biserat specimens; two 2 ad.; August and Sep- 
tember ; teeth slightly worn; in alcohol; unfaded.— Upper side a 
rather dark brown shade of “drab”; this colour is confined to 
the tips of the hairs; the much broader base of the hairs so light 
‘“‘eeru-drab” as to approach whitish; under side whitish “ ecru- 
drab,” somewhat darker on the sides of the body. 
(2) Laos specimen; ad.; teeth slightly worn; skin.—Very 
much lighter. Upper side bright ‘“ cinnamon,” base of fur 
‘“‘eream buff”; horseshoe patch * on back dark brown; under side 
buff. 
* A dark-coloured patch on the upper side of the body, horseshoe-shaped, or like 
a V, the branches starting on each shoulder, convexity (or angle-point) directed 
backwards. It is curiously characteristic of many species of the families Rhino- 
lophide and Phyllostomatide, but often (quite individually) more or less, or even 
completely, obliterated, especially, of course, when the fur also is dark-coloured. 
Being, as a rule, more common and more distinct im young or immature individuals, 
it is, probably, an inheritance from some remote ancestors of the two families. 
Rhinolophide and Phyllostomatide have, probably, had a common origin. 
