DR. F. A. JENTINK. MAMMALS. \JJ 



Pseudochirus Schlegelii Jentink. 



N°. 352. Young Ç>. Helhvig Mts. (2528 m.), October 17. 1909 ^skin and skeleton). 



As it agrées very well with Schlegelii I therefore suggest it to belong to that species. 

 The type, described by me in 1884, remained till now the only known spécimen in Muséum- 

 collections ; it had been bought from Mr. Frank in 1879, said to come from the Arfak 

 Mountains. This second spécimen inter alia is therefore of a great scientific value as it demon- 

 strates that the type-specimen of the species truly is a mountain-form, as might hâve been 

 suggested considering its very thick fur. 



The skeleton présents 14 thoracic, 6 lumbar, 3 sacral and 29 caudal vertebrae. The 

 sternum resembles that of Albertisii, having three segments in the mesosternum, but the 

 segments are not so broad, presternum shorter and xiphisternum relatively more elongated 

 and much broader posteriorly; pelvis agrées with that of Albertisii described above. Very 

 interesting is that Schlegelii has one corpus vertebrae more than Albertisii, and this 14*11 

 vertebra is developed exactly like the other ones, but has at its right side a small rib-like 

 projection, about 5 mm. long. In this species as well as in Albertisii the fibula is a very 

 strong bone, at the upper extremity very broadly developed like in the Phalanger-species 

 generally. 



Phalanger maculatus E. Geoffroy. 



N°. 214. Old Q. Lorentz River, September 5. 1909 (in alcohol). 



N°. 217. Old. Van der Sande River, September 10. 1909 (skin with skull). 



N°. 340. Very old cf. Alkmaar, November 1909 (skin with skeleton). 



N°. 427. Adult cf. Near Bivak Island, January 24. 1910 (skin with skeleton). 



N°. 431. Very old cf. Alkmaar, December 14. 1909 (skin with skull). 



N°. 433. rf. Alkmaar, December 30. 1909 (skin). _ . 



Old cf. Without label (in alcohol). 



Phalanger orientalis Pallas. 



There are five lower jaws apparantly belonging to animais of this species among the 

 lower jaws received from the indigenous Pesegem-tribe (1500 m.) by the members of the 

 expédition. 



Phalanger gymnotis Peters et Doria. 



N°. 277. Old cf. Regen Island, September 30. 1909 (skin with skeleton). 

 N°. 439. Very old Q. Alkmaar, January 29. 1910 (skin with skeleton). 

 N°. 435. Young Ç>. Alkmaar, January 20. 1910 (skin with skeleton). 

 N°. 440. cf. Young, taken from the marsupium of N°. 439 (in alcohol). 



The type-specimen (an adult maie with skeleton), collected by BECCARI on one of the Islands 

 of the Aru Archipelago and described by PETERS and DORIA in 1875 (Ann. Mus. Civ. Gen. VII) 

 and at the same time the single individual, has been a puzzle to ail students of the Phalanger- 

 group. It therefore is of the highest interest that I found in the Lorentz-collection the three 

 above mentioned spécimens, prima facie distinct from ail hitherto seen individuals of the 

 orieutalis-group, but at the same time exactly agreeing with gymnotis Peters et Doria; the 

 foregoing summer I could study the type in the Genoa Muséum, by the kindness of the 



