new Rhiiiolophi /ro»j Africa. 75 



its fjeims ; Rh. H. elotjucns barely surpasses Rh. fernim- 

 eqiiinum. Tlie rcduetiou in size affeets mainly the forearm 

 and metacarpals, far less the phalanges. In the length of 

 the forearm the hmjcst specimens of Rh. H. eloqiiens tall 

 short of the smiil/esC individuals of the typical form ; this 

 character, therefore, evidently affords a most reliable mark 

 of distinction between the two races. As to the metacarpals, 

 maximnm measurements of Rh. H. eloquens approach, very 

 closely, minimum measurements of Rh. H. typicus. 



Colour. — Rh. Hildcbrandti (4 skins) is dark greyish '' drab'^ 

 on the upperside, bright drab beneath. Rh. H. eloquens 

 (3 skins) is tinged with "wood-brown" above, next to 

 " broccoli-brown " beneath. Base of the hairs, on the upper 

 and. under sides, dark smoke-grey. Immatnre individuals 

 (I skin) are slightly dnller in colour than adults. 



Skull and dentition. — All the measurements markedly 

 smaller than in typical Rh. Hildebrandti. The length of the 

 upper and lower tooth-rows, as being almost quite indepen- 

 dent of the individual variation, is the best character by 

 which to distinguish between the skulls of the two forms 

 (conf. measurements below^). \n Rh. Hildebrandti (b skulls) 

 the upper /J- is nearly always present and easily perceptible; 

 the lower p^^ very minute, but generally not complete'y 

 wanting. In Rh. H. eloquens p^ is exceedingly small, hair-fine, 

 even under a strong lens; p^ (as it appears from examination 

 of four skulls) almost always wanting, even in immature 

 specimens. 



Type. — Ad. (sk.), unsexed. Entebbi, Uganda; collected 

 and pr( scnted by F. J. Jackson, Esq. B. M. no. 99. 8. 4. 4. 

 Three other specimens, from the same locality, are preserved 

 in the .Museum. 



Dislr'ibution. — Probably the whole of the district sur- 

 rounding Albert, Albert Edward, and Victoria Nyanza. 



Remarks. — The present form is of great interest from a 

 phylogeueric no less than from a zoogeographical point of 

 view. Rh. Hildebrandti and Rh. funnyatus {=^ Antinoni) *' 

 form a well-defined group of species, agreeing in the general 

 form of the ears, in the size and shape of the horseshoe, the 

 sella, and the posterior connecting-process, in having the 

 margins and front face of the sella clothed with long hairs, 

 in the general form of the wings, the comparative shortness 

 of the tail, and the more essential characters of the skull 



* TogetLer with Rh. ccthiops ; but this species, although extremely 

 inteiesting as the hitljerto only known West-African repre.«entative of 

 the group, has a more isolate position, differing much more from the two 

 other .«pecif.s than these latter inter i-e. 



