236 



RHINOLOPHID/E— RHINOLOPHUS 



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

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

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

 than that of obscurns, 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 55-4, 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, in 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. (Rollinat and Trouessart). 



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

 leg; fifth metacarpal, about 1-09 to i-ii 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 11 fi to 



