small Mammals from Jt'jny. 139 



Sr. Buditi's skins of this mouse are unfortunately somewliat 

 overstretched, so that at first sigiit tlie animal a|)i)ears to be 

 fully as large as E. callosa, but this impression is corrected 

 by the skulls. 



4. Phyllotis wolffsohni^ Thos. 



c?. 43 ; ? . 1, 5, 7, 11, 17. Maimara. 2230 m. 

 Closely similar to the typical specimens from Tapucari, 

 near Cochabamba, some 400 miles north of the present 



locality. 



5. Phyllotis areyuirivs, Thos. 



c? . 55. Cerro de Lagunita, E. of Maimara. 4500 m. 



In determining these specimens of Fhyllolis, and studying 

 the characters of the allied genera Phyllotis and Eligmo- 

 dont'id, the following species has proved to need de- 

 sciiption : — 



PliyUotis eleyantuluSj sp. n. 



A small species allied to Ph. amicus, but with shorter 

 tail. 



Size and general characters about as in Ph. amicus. 

 Colour somewhat modified on the specimen skinned out of 

 spirit, but apparently as in Ph. amicus ; the upper surface 

 drabby grey, the under surface white with the bases of the 

 hairs slaty. Feet slender, with naked soles, as in amicus. 

 Tail conspicuously shorter than in that species, brown above, 

 whitish on sides and below. 



Skull of about the same size as in Ph. amicus, but readily 

 distinguishable by the interorbital region being more evenly 

 contracted, the narrowest point at about the middle of the 

 fVontals, instead of the posterior part being much broader 

 than the anterior. Supraorbital edges smoothly square, not 

 beaded. Bullss rather smaller than in amicus. 



Dimensions of the type (measured on the skin) : — 



Head and body 92 mm. ; tail (vertebrae in situ) 70; hind 

 foot 21 ; ear 17. 



Skull : greatest length 27; condylo-incisive length 23*2 ; 

 zygomatic breadth 2'5 ; nasals 11 : interorbital breadth 4 ; 

 palatilar length 11' 7 ; palatal foramina 6*4 ; upper molar 

 series 4. 



Hah. Pallatanga, Ecuador. 



Type. Old male. B.M. no. 7. 1. 1. 113. Collected in 1859 

 by L. Fraser. Received with the Ton)es collection. 



This is Tomcs's " Hesptromys elegans, Waterh.," of his 

 paper on the Fraser mammals, F. Z. S. 1860, p. 21.3, but is 



