416 Mr. 0. Thomas on 



32. Dasymys sp. (probably nudipes, Pet.). 

 $ . 159. Braganza. 



33. (Enomys (g. n. *) hypoxanthus Anchietw, Bocage. 

 Mus Anchietce,. Bocage (the male only). 



S . 24. 93. 98 ; ? . 25. Pungo Andongo. 



The u Mus Anchietce " of Bocage is clearly a member of the 

 hypoxanthus group, but is separable from the Gaboon form 

 by its rather lighter colour, in which respect it approaches my 

 (E. h. unyori]. From this latter it is distinguished by the 

 lesser extension of the rufous over the back and the less 

 wholly red feet. 



With regard to the general position of the hypoxanthus 

 group, further consideration convinces me that the molars 

 are so peculiar that it ought not any longer to be included in 

 Mus, and I therefore suggest a special generic name for it. 

 A good account of its dentition, with figures, has been 

 given by Tullberg %, and in Bocage' s paper there is also a 

 photograph of the under aspect of the skull. The characters 

 of (Enomys would be as follows : — 



General structure as in Mus, but the molars very broad, 

 rounded, with peculiarly prominent cusps; the individual 

 cusps separated by deep antero-posterior grooves from each 

 other, so that the essential laminate structure of the molars is 

 lost. M 1 and in? each with a large antero-internal supple- 

 mentary cusp and small antero-external one. M s with very 

 large antero-internal supplementary and main internal cusps, 

 but the external ones, both supplementary and main, almost 

 or quite obsolete. 



34. Mus Bocagei, sp. n. 



£. 19, 30, 78, 86, 128; ?. 21, 27, 43, 59. Pungo 

 Andongo. 



A large pale brown rat, with white belly and feet ; mammae 

 0—2 = 4. 



General colour pale brown, resulting from a mixture of 

 blackish and clay-colour; sides greyer; belly white, fairly 

 sharply defined, the hairs slaty grey at their bases only. 

 Head like body, orbital rings darker. Ears of medium 

 length, brown. Outer side of limbs like body, inner like 



* (Enomys, g. n. Type Mus hypoxanthus, Pucheran. 

 + Ann. & Mag. Nat. Hist. (7) xii. p. 343 (1903). 

 % N. Act. Upsala, (3) xvi. Art. xii. p. 26 (1893). 



