92 



MR. K. ANDERSEN ON BATS 



[May 16, 



in its outline is produced, not by a heightening of the anterior 

 swellings, but by a reduction of the posterior pair ; these latter, 

 which in all tlie allied species form a sort of transition between 

 the anterior swellings and the adjacent part of the supra- 

 oi'bital crests and interorbital constriction, are in stheno so much 

 reduced as to leave the anteiior swellings more isolated, i. e., more 

 cihruptly projecting. 



Dentition, p., external ; p., and p^ in contact ; p" in row 

 extremely small. 



Measurements. Below. 



Type. S ad. (in alcohol). Selangor, Malay Peninsula, 

 sented by H. N. Ridley, Esq. Brit. Mus. no. 98.3.13.1. 



Distribution. Selangor ; Penang. 



Remarks. Rh. stheno differs from Rh. borneensis in the series of 

 charactei-s pointed out above. From Rh. nereis, in the shape 

 of the facial portion of the skull, the much slenderer brain-case, 

 and the shorter tooth-rows. From Rh. rouxi, in the shape of the 

 facial portion of the skull ; the much shorter metacarpals (al- 

 though the forearm is of the same length as in smaller individuals 

 of rouxi) ; the long III." (compared with III.^) ; the short IV,* 



cusp 



Pre- 



Measurements o/ Rhinolophus malayanus, nereis, and stheno. 



Rh. malayanus. RJi. nereis 



3 specimens, 

 2 skulls. 



Rh. stheno. 



? ad. 

 Type. 



4 specimens, 

 3 skulls. 



Ears, length 



„ greatest breadth 



Nose-leaves, total length 



„ breadth of horseshoe 



Forearm 



3rd metacarpal 



III.i 



III.2 



ith metacarpal 



IV.i 



IV.2 



oth metacarpal 



V.i 



V.2 



Tail 



Lower leg 



Foot 



Skull, totallength 



;, mastoid width 



„ width of brain-case 



„ zygomatic width 



,, supraorbital length 



„ width of nasal swellings 



Mandible, length 



Upper teeth 



Lower teeth 



Min. 

 mm. 



16-2 



12 



13-2 

 7-8 



41-2 



30 



iri 



15-3 



30-2 

 8-8 



10 



30 

 9-7 

 9-7 



19-2 



16-8 

 7-8 



18-4 

 8-8 

 8 



9-2 

 5-1 

 5-2 



12-1 

 6-8 

 7-3 



Max. 



mm. 

 16-8 

 12-5 

 13-2 



8 

 42-8 

 31 

 12 

 16-8 

 31o 



9-3 

 10-5 

 31-5 



9-8 

 10 

 20-5 

 17-8 



5-6 

 12-7 



7 

 7-5 



13-7 



?45 

 ?33-2 

 13-2 

 21 

 33-7 



8-7 

 12-8 

 34 

 10-8 

 10-2 

 17 

 21 



9-3 

 21-2 

 10-2 



9-5 

 10-8 



5-6 



5-8 



Min. 

 mm. 

 17 

 13 

 13-8 



8 

 45-2 

 31-5 

 12-6 

 20-1 

 33 



8-2 

 11 

 33-5 



9 



10-5 

 15-5 

 19-8 



8-5 

 19-7 



9-3 



8-0 



13-2 



7-4 

 8-1 



Max. 

 mm. 

 17-5 

 13-2 

 14-2 



8-3 

 48 

 32-7 

 13 

 21-7 

 33-8 



8-8 

 12-5 

 34-2 

 10-4 

 11-5 

 17-8 

 20-8 



9-2 

 20-2 

 10 



8-7 

 10-1 



5-1 



7-9 



