18/6.] DR. A. GUNTHER ON NEW MAMMALS. 73.T 



species of Nyctinomus, and resemble Myopterus), in their distinctly 

 separated ears, in the possession of six lower incisors, and in the 

 presence of a glandular gular sac. These characters appear sufficient 

 to unite them in a subgenus at least. But N. norfolcensis has an 

 additional upper premolar, which is even better developed than in 

 other species of the genus, and therefore belongs to the subgenus 

 Nyctinomus ; while N. albiventer and N. acetabulosus, on account 

 of the absence of this small premolar, are relegated to the subgenus 

 Mormopterus. 



It is therefore impossible, in a natural arrangement of the 

 species, to separate N. albiventer and N. acetabulosus into a distinct 

 subgenus characterized by the number of the upper premolars ; for 

 this would exclude N. norfolcensis, which is, undoubtedly, in all other 

 respects, very closely allied to them, and forms with them a well- 

 defined section of the genus. 



3. Report on some of the Additions to the Collection of Mam- 

 malia in the British Museum. By Dr. Albert Gunther, 

 F.R.S., V.P.Z.S., Keeper of the Zoological Department. 



[Received November 6, 1876.] 



(Plates LXIX-LXXIV.) 



1. On a Collection from the Philippine Islands. 



A small collection made by Professor Steere in the Philippine 

 Islands gives some additional information as regards the distribution 

 of certain species in that group. It contains : — 



Macacus philippinensis (Is. GeofFr.). 



This Monkey was procured in the mountains of Mahayhay, in the 

 island of Luzon, near Manila. Dr. Steere also shot the same species, 

 or apparently the same, in 1 he islands of Palawan, Mindanao, and 

 Basilan. They go in large troops, and are often seen along the sea- 

 shore, where they seem to be occupied in hunting for shell-fish and 

 crabs. 



Galeopithecus philippinensis (Waterh.), from Bojol. 



Pteropus jubatus (Temm.), from Mindanao. 



Ttipaia javanica (Horsf.), from Palawan. 



Viverra tangalunga (Gray), from Panay. 



Sciurus exilis (S. Midi.), from Basilan (also found in Mindanao). 



Sciurus steerii (sp. n.), 



Sciurus steerii (Plate LXIX). 



Dr. Steere's collection contained two examples of this apparently 

 undescribed species, which greatly differ in coloration, but are 

 structurally quite identical: — 



1. A specimen obtained from Balabac (marked 6510) has the 

 upper parts, sides of the body and outer side of the legs, of a rich 

 chestnut-brown colour, the hairs being tipped with black, which gives 

 the fur a grizzled appearance. All the lower parts are brownish red. 



