ON MAMMALS FROM NEW GUINEA. 737 



of blackish fingers, and by the considérable length of the naked area below the tail-tip. The 

 molars would also seem to be considérable smaller, but owing to its youth, no other cranial 

 measurements are available for comparison. 



I hâve named this very pretty little phalanger in honour of Dr. DAMMERMAN, to 

 whose kindness I owe the opportunity of working out this most interesting collection. 



35. Phalanger maculatus, Geoff. 



cf 91. New Guinea. 



Ç 5. Pionier-bivak, Mamberamo River, 8 Aug., 1920. VV. C. van Heurn. 



Q 93. South New Guinea. 



[4 cf. Kloof-bivak (3) and one without exact locality. 



1 Ç, young. Bivak Island, Lorentz River.] 



36. Phalanger orientalis, Pall. 



Q. Skull, N°. 3, and two foetus in al. Pionier-bivak, Mamberamo River, 1920. W. C. van Heurn. 

 cf 9. Prauwen-bivak, Idenburg River, 21 Nov., 1920. W. C. van Heurn. 



37. Isoodon moresbyensis, Rams. 



cf. (yg.) in al. VI. South New Guinea. Coll. Hassan. 



38. Echymipera doreyana, Quoy & Gaim. 



çf 92. Beeuw, Tor River, N. New Guinea. K. Gjellerup. 10 Oct. 191 r. 

 cf 7. Q S. Prauwen-bivak, Idenburg River. 12 — 16 Sept., 1920. W. C. van Heurn. 

 çf in al. XIII. Hollandia, Humboldt Bay, N. New Guinea. July 1910. Van Kock. 

 Q young, in al. V. Asj Res., N. New Guinea. 

 young (stuffed) 86. New Guinea. 



It must be admitted that in length of skull thèse Bandicoots do more or less fill up 

 the gap between doreyana and the large form which I named gargantua, their condylo-basal 

 lengths being, in the order of the spécimens above, 73.5, 75.3, 77.2 and 78.3. 8 and XIII 

 are old, with much worn teeth, but in 92 and 7 thèse are but little worn, and it is certain 

 that it is not alvvays the spécimens with the most-worn teeth, presumably the oldest, which 

 hâve the longest skulls. 



However, if a very unusual range of variation in size be granted, it does seem pos- 

 sible that the long-skulled examples to which I attached the name of gargantua are really 

 only overgrown individuals of doreyana. 



39. y Peroryctes dorsalis, Thos. 



Ç 12. Doormanpad-bivak, Mamberamo basin, 1410 m. W. C. van Heurn. 23 October 1920. 

 Type. B. M. N°. 22. 2. 2. 74. 



Very similar to P. ornatiis, but with less-developed striping and almost completely 

 naked tail. 



Size and gênerai appearance very much as in ornatus. General colour similarly brown, 



slightly lighter in tone. Undersurface whitish-brown, the hairs brownish at their bases instead 



of being wholly whitish as in ornatus; chest slighly darker than throat, instead of being lighter. 



Dorsal stripe similarly running from muzzle to rump, but posteriorly not so sharply defined 



Nova Guixea XIII, Zoologie. 95 



