A new Rodent-Mole from Xorth-icestern Rhodesia. 451 



ar<l (orquata), coronoid process higher and much slenderer. 

 All molariform teeth conspicuously shorter and narrower than 

 in the two other species of the genus: m 1 , length 1*9 mm., 

 against 2'2, breadth 1*3 mm., against 1*6-1*7 ; jh, length 

 2'4 mm., against 2*7-3, breadth 1*7 mm., against 1*8* m 2 

 relatively of the same size as in M. wroughtoni, less reduced 

 than in M. torquata. — Ears smaller than in the allied species, 

 length from notch. 14 mm., against 15-15'5 in M. torquata 

 and 16"5-17'5 in M. wroughtoni ; length of tibia and hind 

 toot as in M. wroughtoni, but forearm, metacarpals, and 

 phalanges somewhat shorter. Distribution and colour of fur 

 as in the allied species. 



Type. $ ad. (skin and skull), Sierra Leone • presented by 

 J. Hickman, Esq. ; B.M. 91. 2. 13. 1. — The species is 

 represented in the Leyden Museum from Liberia *. 



LVI. — A new Rodent-Mole from North-western Rhodesia. 

 By E. C. Chubb. 



Georychus molyneuxi, sp. n. 



Resembling G. darlingi, Thos., externally, except for its 

 larger size. Fur very short, not more than 2 or 3 mm. in 

 length. General colour silvery drab, bases of the hairs 

 bluish slate. Crown with a white diamond-shaped patch 

 about 18 mm. long. The area surrounding the mouth in 

 both examples is reddish brown, as is often the case in 

 6r. darlingi. Skull with nasals converging anteriorly and 

 posteriorly, and extending backward behind the lacrymal 

 projection. Ascending processes of the pre mamillaries ex- 

 tending backward about a millimetre behind the nasals. 

 Sagittal and occipital crests well developed. Anteorbital 

 foramen an almost vertical slit, about 2 mm. long. 



Dimensions of the cotypes ( $ & ? ) : — 



Head and body 162, 167 mm. ; tail 16, 18 ; hind foot 

 24, 26. 



Skull of ? : basal length 35' 5 ; basilar length to hen- 

 selion 31 ; greatest breadth 27; nasals 13 X 3*5 ; interorbital 

 breadth 17 ; height of anteorbital foramen 2 ; palate length 

 from henselion 22 • diastema 12"5 ; upper molar series 5'6. 



Hab. Loano Valley, North-western Khodesia. 



* (.'. torquata (nee Dobs.), Jentiuk, Notes Leyden Mus. x. p. 52 (18d7) ; 

 id. Cat. Syst. Mauiui. p. 151 (1888). 



