368 



BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



Group on the east, as well as the most northerly portion of Australia, 

 including the York Peninsula, and probably the whole northern coast 

 region, or that portion of Australia north of the Southern Tropic, except 

 the elevated arid interior. Of the twenty-seven genera (exclusive of 

 CMroptera and marine species) represented in the Papuan Province, ten 

 are not found elsewhere in the Australian Realm. Three of these (Sus, 

 Sorex, found only in the Moluccas, and Mus) have a wide In do- African 

 range ; four ( Uromys, Dendrologus, Dorcopsis, and Mycectis) are found 

 only in New Guinea and the Aru Islands ; and one (Dactylospila) in the 

 Aru Islands and the York Peninsula. 



The seventeen remaining genera belong more properly to the Aus- 

 tralian Province, or perhaps to Australia at large. Many of them, while 

 numerous in species, have here (like Halmaturus, Antechinus, Poddbrus, 

 Mus, Hapalotis, etc.) only straggling representatives, but are numerously 

 represented in the temperate region to the southward. The distribution 

 of the genera is approximately indicated in the subjoined table. 



Genera of the Papuan Province. 



[NOTE. The New Guinea representatives of the genera Hapalotis, Phalangista, and Tachyglossus have 

 recently been separated from their Australian affines as distinct snbgenera. Babirusa is also re- 

 ported from Bourn, but as probably introduced from Celebes.] 



1 New Guinea only. 



2 Moluccas only. 



3 North Australia only. 



4 Also Celebes, Timor, and Moluccas. 



'Occurring in New Guinea. 



6 Aru Islands, New Guinea (Peters), and York 

 Peninsula (Krefft). 



6 Mainly large South Australian genera, spar- 

 ingly represented in North Australia and 

 New Guinea. 



Total number of genera 27 



Restricted to the region (including, however, two Indo-African genera) 1.0 



Represented in New Guinea 18 



Ranging also over the Australian Region 16 



Restricted to New Guinea and neighboring islands (exclusive of two Indo- African 



genera) 4 



Common to only New Guinea and North Australia 4 



Genera properly belonging to the Australian Region, but sparingly represented in 



the Papuan Region 10 



Distinctively characteristic of the Papuan Region, about 15 



Australian Province. The Australian Province, embracing Tasmania 

 and all of Australia south of about the. southern isotherm of 70 F., 



