136 MILLER 



ear from meatus 21. Ridge on muzzle beneath edge of nose leaf low, 

 broad and hairy, not in the least suggesting a supplementary leaflet. 



RHINOLOPHUS SPADIX sp. nov. 



1894. Rhinolophus affinis Thomas and Hartert, Novitates Zoologicae, 11, 

 p. 656. December, 1895 (Sirhassen). 



Type. — Adult female (in alcohol) No. 104752 U. S. National 

 Museum. Collected on Sirhassen Island, South Natunas, June, 1900. 



Characters. — In general like Rkifiolophtis ajffinis but much smaller. 

 Color uniform tawny brown. Muzzle with distinct supplemental 

 leaflets. 



Muzzle. — Muzzle and noseleaf precisely as in Rhinolophus affinis^ 

 except that the ridge on muzzle beneath edge of horseshoe is de- 

 veloped into a distinct supplemental leaflet resembling those present 

 in Hipposideros. In this respect Rhinolophus spadix resembles the 

 animal from Burmah referred by Thomas to Rhitiolophus rouxii ; ^ 

 but the terminal erect portion of the noseleaf is not shortened or in any 

 way peculiar in form. 



Ears. — The ears resemble those of Rhinolophus affinis^ except 

 that they are not as large. 



Color. — Fur everywhere russet, slightly paler on ventral surface, 

 darker and somewhat tinged with hazel above. Ears and membranes 

 dark brown. 



Skull and teeth. — The skull and teeth exactly resemble those of 

 mainland specimens of Rhinolophus affinis except for their uniformly 

 smaller size. 



Measurements. — External measurements of type : total length, 70 

 (85''') ; tail 21 (23) ; tibia 17.6 (24) ; foot 8 (10) ; calcar 12 (13) ; 

 forearm 43 (51) ; thumb 8 (8.6) ; second digit 32 (40) ; third digit 

 64 (77) ; fourth digit 53 (61) ; fifth digit 54 (63) ; ear from meatus 

 17 (20) ; ear from crown 14 (17) ; length of noseleaf from lip 13 

 (16) ; greatest width of noseleaf 8 (9). 



Cranial measurements of type : greatest length 18 ( 23 ) ; basal 

 length 16 (20.4) ; basilar length 14.6 (18) ; zygomatic breadth 9 (ii) ; 

 least interorbital breadth 2.4 (2.4) ; greatest length of braincase 10.4 

 (13) ; greatest breadth of braincase above roots of zygomata 8 (9.4) ; 

 frontopalatal depth (at middle of molar series) 4 (4.8) ; depth of 

 braincase 6 (7) ; mandible 11.8 (15) ; maxillary toothrow (exclusive 



'Ann. Mus. Civ. di Storia Nat. di Geneva, Ser. 2, x, p. 923, p1. xi, 1892. 

 ^ Measurements in parentheses are those of an adult female Rhitiolophus 

 affinis from Trong, Lower Siam. 



