26 ARKIV FÖR ZOOLOGI. BAND 8. NIO 16. 



They are partly from Nanegal, Gualea, altitude 5,000 to 

 7,000 feet, partly from a locality below Gualea and west of 

 Pichincha altitude 4,000 to 5,000 feet. Native name: »Ardilla». 



Microsciurus similis fuscnlus Thomas. 



A small and dark Squirrel collected at an altitude of 3,000 

 feet below Gualea agrees with typical specimen of this kind 

 in British Museum. 



The following 8 species of rodents have kindly been na- 

 med by Mr. Oldfield Thomas F. R. S: 



Thomasomys baeops Thomas. 



Specimens from Papallacta about 10,500 feet, and from 

 Cuyujo below Papallacta 8 — 9,000 feet. 



Thomasomys aureus Tomes. 



This pretty long-tailed Rat appears to be common. There 

 are specimens in the collection from Magdalena, south of 

 Quito, altitude 9,600 feet; »nests in the bushes» (L. Söder- 

 ström); from Guapulo below Quito; at the road to Mindo, 

 about 7,000 feet; on the slope of Pichincha above Quito; on 

 the banks of Machangosa, where it »makes a nest in the trees 

 and has generally two (sometimes three) young ones» (L. Sö- 

 derström). A nest, which has been sent in together with 

 the female inhabiting it, is irregularly globular with an en- 

 trance opening on the side. It is made of plant fibres, out- 

 wardly partly covered with green möss and pieces of bark. 

 Its diameter is about 20 — 25 cm. 



Oryzomys stolzmaiini Thomas. 



One specimen from below Nono, altitude 8,500 feet, an- 

 other from Pichincha altitude 10,000 feet. 



