On Two new Species of Potto. 17 



(lark branches of tliis spot extend down the liinder part of the 

 moustachial area ; there is a pale spot immediately in front 

 of the eye; the cheek beneath the eye is red-fawn, with a 

 distinct dark smoky patch behind the eye and beneatli the 

 ear. The ears dark bhickish, except at their bases. The 

 whole of the underparts, the liandn, an I the feet white. 



2 (J, 1 ?, Province of Gliizeh ; collected by Dr. C. W. 

 Andrews, F.G.S. 



Type of species, no. 1, (J, in al. 



Measurements (taken from specimens preserved in al- 

 cohol) : — 



6 (type), S, $. 



DO. 1. no. 2. no. 3, 



mm. mm. mm. 



Head and body 72 74 73 



Tail 112 92 (imperfect) 105 (imperfect) 



Hind foot 23-5 21-5 23 



Forearm and hand .... 23 23 23 



Ear 11 11 11 



No. 2, J, has a very short hind foot; the tail is very 

 imperfect, there being no crest on the part remaining. 



Measurements of skull of <^ , no. 2 ; — 



Greatest length 26 millim. ; greatest breadth 15; breadth 

 of brain-case 13"5; temporal constriction 5*2; length of 

 nasals 10; basal length 22; length of palate 10; incisive 

 foramina 4*5; molar series 3*6. 



This mouse-gerbil is a prettily marked, compactly built 

 little aninial, though the hind legs are rather long. It is 

 very distinct from D. quadrimaculatus^ Lataste, found not 

 tar off at llelouan, which is yellow in colour and is larger 

 and more handsomely coloured than D, Watersi'*', deWinton. 



VIII. — Notices of Two new Species of Potto from the French 

 Congo Territory. By W. E. DE WiNTON. 



The collections made by Mr. G. L. Bates in the French 

 Congo territory have added considerably to our knowledge 

 of the Pottos. Two new species are here described, one 

 belonging to the true Pottos (Perodicticus) and the other to 

 the dwarf Pottos (^Arctocebus). 



Besides the new forms, examples of the large Potto from 

 Gaboon (P. Edwardsi) described briefly by M. Bouvier in the 

 ' Guide du Natural.' 1879, i. p. 10, have been obtained, 



* Novitates Zool. (Tring), Dec. 1901. 



