Mammals from the District of Cuzco, Peru. 41 



Two precisely similar specimens of this squirrel are in 

 Mr. Garlepp's collection. They may be readily distinguished 

 from the co-types of S. irroratus by their yellow digits and 

 other characters above described. They have a considerable 

 resemblance to the Nicaraguan Sciurus Richmondi, Nelson *, 

 which is evidently a member of the same group, but has a 

 browner and less olivaceous general colour, darker belly and 

 feet, and much longer and more posteriorly extended nasals. 



S. irroratus has been amalgamated by Alston and others 

 with S. cestuans ; but in the present state of our knowledge I 

 do not venture to express an opinion as to its proper status. 



Nectomys Garleppii, sp. n. 



Similar in most respects to iV. apicalis, Pet., but with 

 decidedly shorter feet and broader skull. 



General colour about the same glossy greyish-brown found 

 in N. apicalis and grandis, rather darker than in N. palmipes. 

 Sides more grizzled fulvous; belly greyish white, broadly 

 washed with dull buffy, not sharply defined laterally ; throat 

 and anal region dull whitish. Anterior part of outer surface 

 of ear black. Upper surface of hands and feet thinly haired, 

 brownish white ; soles with 5 pads only. Hairs of tail black 

 above and on the sides, as are most of the proximal ones 

 below, but terminally they are mostly whitish. 



Skull broadly and heavily built, although not so much so 

 as in N. saturatus ; nasals elongate, produced into a long- 

 median point posteriorly ; supraorbital ridges widely diver- 

 gent, their parietal portions markedly convex outwards. 



Dimensions of the type (in skin) : — 



Head and body 205 uiillim. j tail 200 ; hind foot s. u. 

 (wet) 45; ear (wet) 20. 



Skull : basilar length (c.) 36 ; occipito-nasal length 45 ; 

 greatest breadth 23'7 ; nasals 18 - 8 X 5 ; interorbital breadth 

 7'8 ; greatest separation of temporal ridges on brain-case 16 ; 

 palate length from henselion 21 - 5 ; diastema 13 ; palatal 



ramina 7*2 x3'l ; length 



Hah. Ocabamba, Cuzco. 



Type B.M. no. 98. 11. 6. 21. Collected by Herr Otto 

 Garlepp. Seven specimens examined. 



This Nectomys is no doubt closely allied to the Guayaquil 

 N. apicalis, but as the largest of seven specimens has a hind 

 foot only 45 millim. in length, while in apicalis Peters's type 

 has the same measurement 51 millim., and in two examples 

 from N. Peru collected by Dr. Stolzmann it is 50 and 



* P. Biol. Soc. Wash. xii. p. 146 (1898). 



