236 



RHINOLOPHID^— RHINOLOPHUS 



undoubtedly a shorter forearm than the type, although with a skull of 

 about equal size. It may be known as R. ferrum-equinum insulanus 

 {Ann. Mag. Nat. Hist., March, 1910, 292). Its forearm is even shorter 

 than that of obscurus, with which form it cannot be phylogenetically 

 identical, even if apparently indistinguishable. 



DIMENSIONS IN MILLIMETRES:— 



* Andersen gives forearm of thirteen specimens of both sexes as averaging 65-4, with extremes 



of 58 and 63-8. 



The female is, as in many other bats, slightly the larger sex (com- 

 pare also the weights on next page). 



The dimensions of a newly-born young male were as follow, m inches : 

 — head and body, 1-56; tail, -62; ear, -37; longest digit, -93; forearm, 

 ■87; lower leg, -68; expanse, 4-56 (Whitaker in MS.). Young of ten 

 days age have an expanse of 190 to 210 mm. (RoUinat and Trouessart). 



Proportionate lengths : — Foot, with claws, about -45 to -46 of lower 

 leg ; fifth metacarpal, about 1-09 to i- 11 of third ; lower leg, about -45 to 

 •46 of forearm, about -38 of head and body, and about -76 of tail. 



Skull: — Greatest length, 24; basal length in middle line, 19-1 to 

 19-4 ; palatal length in middle line, 8 ; from posterior border of m^ to 



