2s6 RHINOLOPHID^-RHINOLOPHUS 



detail. Kelsall (^Zoologist, 1887, 93) mentions a white one, but without 

 giving details, and two continental specimens are noticed by Cantoni. 



Geographical variation manifests itself chiefly in size, the length of 

 the forearm being 39 to 417 and 347 to 38, and of the skull 16 and 

 14-5 to 15-5 mm. in the typical sub-species and in mmimus respectively. 

 Minutus agrees in skull with the type, in forearm with minimus. The 

 differences are slight, but constant for a series. 



DIMENSIONS IN MILLIMETRES:— 



Note :— Embryos witbiu the mother reach an expanse of 100 to 110, and by July the young attain to 190. 



Proportionate lengths : — Foot, without claws, about -50 of lower leg ; 

 fifth metacarpal, about i-i of third; lower leg, about -46 of forearm and 

 about 7 1 of tail. 



Skull :— Greatest length, 16; basal length in middle line, 13-3 to 

 13-5 ; palatal length in middle line, 5-0; from posterior border of m^ to 

 anterior border of canine, 5-7 ; greatest breadth at zygoma, 8 ; posterior 

 breadth, 6-8. 



The weight of three is given by Couch {Zoologist, 1853, 3941), as 

 TJ, 74, and 73 grains = S, 4-8, and 47 grammes. 



Distinguishing characters: — The length of the forearm, always 

 under 40 mm. in British, and only slightly exceeding 40 mm. in 

 continental specimens, at once distinguishes this species from R. 

 ferrum-equinum. 



The Lesser Horseshoe is in appearance and habits to a 

 large extent a small edition of the larger species. It is, how- 

 ever, more widely distributed, and was consequently the better 

 known of the two up to the date of Mr T. A. Coward's essays 



