222 Mr. 0. Tliomas on 



Lower incisors small, subcqiial, tricuspid, not overlapping. 

 Lower premolars subequal, closely pressed togetiier. 



Dimensions of the type (measured in spirit) : — 



Forearm 34"5 millim. 



Head and body 58; tail 32; head 17; ear 14; trasjns on 

 inner ed<ie 2*6; third finger, metacarpus 31, first phalanx 10, 

 pecond phalanx 9'5 ; fifth finger, metacarjMis 2o*5, first ])ha- 

 lanx 5, second phalanx 3; lower leg 14; hind foot, inchiding 

 claws, 9"3. 



Skull: greatest length 14'7 ; zygomatic breadth 11; 

 depth of nasal notch 3*2 ; breadth across supraorbital projec- 

 tions 8'3 ; breadth of brain-cuse 8o ; front of canine to back 

 of m' 4-6. 



Hab. Albert Edward Range, Central New Guinea. Alt. 

 6000 feet. 



Type. Old male. B.M. no. 1. 11. 24. 11. Collected by 

 Mr. 11. S. Rohu. Ten specimens examined. 



XXXVI n. — On Mammals colhctedhy Mr. Perry 0. Simons 

 in the Southern Part of the Bolivian Plateau. By Oldfield 

 TH0.MA3. 



After making the collection from round Cochabamba worked 

 out in the last number of the ' Annals,' Air. Simons travelled 

 to the barren and desolate country forming the provinces of 

 Oruro and Potosi, and to Sucre, and collected what mammals 

 he could. As might be expected from the character of the 

 country, he did not obtain very many species, but wdiat he did 

 get are of much interest, for this country had not been at all 

 worked before. Mr. Bridges, nearly sixty years ago, had 

 skimmed its eastern borders ; Philippi has described species 

 from Atacama on the west ; ]\Ir. Gustav Garlepj) had, at 

 Sahama, collected some of the species now sent by Mr. Simons; 

 but no one has hitherto recorded specimens from the middle 

 of the ])lateau, from the dreary area round Lake Poopo, or 

 eastwards in Potosi and Sucre. 



Over the main part of this area, not unnaturally, the fauna 

 is very uniform, considerable as is the distance between its 

 extreme ends. But the s})t'cimen3 collected by Mr. Simons 

 on the Pampa AuUaga, to the west of Lake Poopo, are mostly 

 different from the rest, and agree with species obtained by 

 Mr. Garlepp near Mount Sahama, or with others from further 

 north-westward. 



Of the novelties the most interesting are the two new 

 genera yeoctodon and Andinomys described elsewhere, the 



