ON MAMMALS FROM NEW GUINEA. 735 



as in aipreus, except that they meet each other throughout, without tendency to diastemata. 



Dimensions of the type, measured in skin : 



Head and body 360 mm.; tail 310. 



Skull, condylo-basal length 68; upper length 64.5; zygomatic breadth 42 ; nasals 20 X il; 

 intertemporal constriction 5.5; greatest breadth on bullae 37.3; palatal length 36. Upper tooth 

 séries 36.6; combined length of three anterior molariform teeth 14.2. 



Hab. South West New Guinea, south of the Nassau Mountains, on the Noord River. 



Type. Old Maie. B. M. N°. 22. 3. 22. 2. Collected by Dr. VERSTEEG. 



This well-marked species is an intermediate link between the tvvo coppery Psendochiri 

 of the opposite ends of New Guinea, P. albertïsi of the North-west, and P. aipreus of the 

 South-east. It is not improbably the animal from the Hellwig Mountains referred to P. alber- 

 tïsi by JENTINK]. 



32. Pseudochirus albertïsi, Pet. & Dor, 



94. „South New Guinea". 



Isolated skull. N°, 17. Doormanpad-bivak. 1400 m. W. C. van Heurn. 



The statement that the skin came from South New Guinea is not authenticated by 

 the name of any responsible collector, and in view of the animal's close resemblance to the 

 ordinary P. albertïsi of the Arfak région, I am disposed to consider its locality as doubtful. 

 The dorsal line is unusually indistinct, but hardly more so than in one of our four Arfak 

 spécimens. 



[Pseudoc/iints versteegi, sp. n. 



Q. Kloof-bivak, Noord River. April 1912. Dr. Versteeg. B. M.- N°. 22. 3. 22. 3. Type. 



A small species allied to P. caroli '). 



Size about the same as in caroli, therefore larger than in other members of v Pseudo- 

 chirulus" . General colour above of the same buffy brown, the head similarly not suffused 

 with rufous; dorsal dark mark equally présent and ill-defined. Buffy-brown of fore-back exten- 

 ding uniformly to the rump, while in caroli the rump is distinctly greyer. Under-surface creamy 

 white, the hairs white to the roots; skin brown. Orbital rings and top of muzzle blackish; 

 ear markings as in caroli. Tail rather more hairy than in caroli, its dark proximal part extending 

 for nearly two-thirds its length, instead of one-half, blacker in colour, and changing more 

 sharply and abruptly to white; naked part below tip only three inches in length instead of 

 of about six, less in length than the white part of the tail ; base of tail below white for the 

 proximal two inches. 



Skull, allowing for différence of sex, essentially as in caroli, but the nasals are of mar- 

 kedly différent shape, narrower in their expanded portion and broadly convex behind, while 

 in caroli their posterior border is longer, nearly directly transverse, and sharply angular exter- 

 nally. Bullae decidedly smal'.er as to their main posterior portion, but the anterior part is 

 slightly larger. 



Teeth as in caroli. 



1) Ann. Mag. N. H. (9) VIII. p. 537. 1921. 



