1905.] 



OF THE GENUS RHINOLOPHUS. 



143 



regarded as a large and a small variety of one species. In 1808, 

 Montagu pointed out some of their distinctive characters, and 

 proposed for the smaller species the name Vespertilio oninutus, 

 being evidently unaware that the two Bats had already twice been 

 specifically separated — by Bechstein in 1800, and by Hermann in 

 1804. Montagu's name, as being antedated by " hipposiderus" 

 was soon almost completely forgotten (it is not recorded in 

 Dobson's Catalogue). The original description of V. minutus 

 being, however, based on English specimens, the name is now 

 available for the British race of Jdpposiderus. 



Remfiarhs. We are now able to form a much clearer idea of the 

 past history of Rh. hipposiderus. It originated from a Bat 

 allied to Rh. minor, somewhere in Asia, most probably near the 

 western border of (if not within) what is now called the Oriental 

 Region. From there it spread southwestwards into Africa, west- 

 wards through the Mediterranean countries to Central Europe 

 and the British Islands. There is, to my knowledge, no record 

 of Rh. hipposide7'its from Egypt ; if this is evidence that it does 

 not occur, and has not occurred, there, it is at the same time a 



Measurements of Rh. midas and hipposiderus. 



Ears, length 



„ greatest breadth 



Nose-leaves, total length 



„ breadth of horse-shoe 



Forearm 



3rd metacarpal 



III.i 



III.2 ; 



4th metacarpal 



IV.i 



IV.2 



5th metacarpal 



V.i 



V.2 



Tail 



Lower leg 



Foot 



Skull, total length 



,, mastoid width 



,, width of brain-case 



,, z.ygomatic width 



„ maxillar width 



,, supraorbital length 



„ width of nasal swellings .... 



Mandible, length " 



Upper teeth 



Lower teeth 



Rh.midas.\ 



$ ad. 

 Type. 



mm. 



17 



13 



12-8 

 7-3 



37-7 



24-2 



11-8 



18-8 



27 

 7-1 



12 



25-8 

 8-9 



12-2 



24-5 



16-2 

 7-6 



15-9 

 7-4 

 6-4 

 7-6 

 5-8 

 4-5 

 4-2 



10-8 

 5-8 

 6-2 



Wi. Jiipposidertis. 



mtmmus. 



32 specimens, 



12 skulls. 



Min. Max. 



mm. mm. 



14 16 



10 12 

 10-6 12 



6 6-8 



34-7 38 



22'2 25-7 



11 12-8 

 15-7 19 

 25 29-2 



5*8 7-8 



10-9 13-2 



23-5 27-7 



7-9 9-2 



11-2 13-8 



23-5 27-7 



16 17-8 



7-2 7-8 



14-5 15-5 



7-2 



6-1 



7-2 



5-2 



4 



3-7 



7-7 

 6-5 

 7-9 

 5-3 

 4-5 

 3-8 

 9-5 10 

 5-2 5-4 

 5-6 5-8 



f . typica. 



33 specimens 



6 skulls. 



Min. Max. 

 mm. mm. 



15 

 11-3 

 11-2 

 6-5 

 39 

 24-8 

 12-7 

 17-7 

 28 

 7 

 12 

 27-2 

 9-1 

 12-8 

 26-2 

 17-8 

 7-5 

 16 

 7-7 

 6-8 

 7-8 

 5-3 

 4-2 

 3 9 

 10 

 5-4 

 5-8 



16-5 

 12-8 

 12-9 



7 

 41-7 

 27-3 

 14-2 

 19-7 

 30-2 



8 

 14-1 

 29-7 

 10-5 

 14-3 

 30-3 

 19'9 



8'5 

 16-2 



7-8 



6-8 



8 



5-5 



5 



4 

 10-2 



5-7 



6 



minutus. 



30 specimens, 



2 skulls. 



Miu. Max. 

 mm. mm. 

 14-2 15-5 



111 



10 

 6 



7-5 

 16 

 7-8 

 6-S 

 8 



5-6 

 4-3 

 4 



5-7 

 5-9 



11-8 

 11-8 



6-7 



36-3 39 



22-8 24'9 



11-6 13-2 



16-3 18-7 



25-7 29-1 



6-7 8 



11'7 13-2 



24-7 28-2 



7-2 9-8 



12-5 14-3 



23-5 27 



16-3 18-5 



8-7 

 16 



7-8 



6-8 



8 



5-7 



4-4 



4 

 10-2 



5-7 



6 



