274 Oeological Society. 



lengtli 15-3 ; diastema 9; palatal foramina 8'6 ; upper molar 

 series 4'5. 



Ti/pe as above. 



Tiie discovery of an additional species of this remarkable 

 genus is of much interest. Its members must be excessively 

 rare or difficult to capture, as among nearly three thousand 

 small mammals collected by Mr. Robin Kemp in East Africa 

 and Uganda only one Uranomys was obtained^ and the 

 Smithsonian East-African Expedition, among a still larger 

 number, also only got one. Two were got by Mr. Fen wick 

 Owen in French Gambia and another by Mr. Russell Roberts 

 in the same country, tbe present being therefore the sixth 

 example recorded. 



15. Leggada musculoides, Temm. 

 c? . 48. 



16. Georychus foxij Thos. 



(?. 76, 90 ; ? . 58, 70, 73, 75, 77, 79, 81. 



A very uniform series of this well-marked and interesting 

 species. 



Every specimen has a well-defined frontal spot, averaging 

 rather less than half an inch in diameter. 



]\Ir. Fox has had several specimens alive in confinement, 

 and has made the remarkable observation that, in addition to 

 its normal diet of grass, root, and bulbs, this mole-rat eats 

 earthworms greedily. 



Although not hitherto published, an analogous observation 

 was made by Major Barrett-Hamilton in S. Africa, a specimen 

 of G. hottentolus collected by him bearing on the back of its 

 label " Stomach full of ants." A living specimen he had in 

 captivity refused to eat any vegetable food. 



Mr. Fox has been unable to find insect remains in the 

 stomachs of such specimens as he has examined. 



PROCEEDINGS OF LEARNED SOCIETIES. 



GEOLOGICAL SOCIETY. 



November 22nd, 1911.— Prof. W. W. \^^atts. Sc.D., LL.D., M.Sc, 

 F.R.S., President, in the Chair. 



The following communication was read : — 



• The Evolution of Inoceramm in the Cretaceous Period.' By 

 Henry AYoods, M.A., F.G.S., Lecturer in Paloeozoology in tbe 

 University of Cambridge. 



The species of Tnoceramus found in tho Gault, the Upper Green- 

 eaud, and tho Chalk aro considered to have descended from two 



