Biifs and Rodents from America. 551 



1^ millim. broad wlicn viewed fioni in front. Tnlate exca- 

 vated to or in front of the junction between w.' and in:\ 

 Bulla? unusually small and low, the basal bone between them 

 much broader than in other s))ccios. 



Dimensions of the type (an adult male, measured in flesh 

 by the collector) : — 



Head and body 254 millim.; tail 182; hind foot 51; 

 ear 22. 



Skull: basilar length 41, greatest length GO; greatest 

 breadth 28; nasals 22 x G-8 ; interoibital breadth 12-5; 

 greatest breadth on supraorbital ledges above squamosals 23'G ; 

 inteiparictal 7"5xll; ])alate length from henselion 19"5; 

 diastema 12-9 ; palatal foramina 4'5x2'9; length of upper 

 molar series 9 ; breadth between bullae on basilar suture 4'5. 



Hah. Cachavi, N. Ecuador, altitude 170 metres. Coll. 

 W. F. II. Rosenberg, 27th Nov., 189G. 



This handsome Echimys differs from Tomes's E. semi- 

 spinosics"^, also from Ecuador, but without exact locality, by 

 its richer rufous colour, the uniform distribution of the spines 

 over the back and flanks, the much greater length and strength 

 of the spines themselves, the nakedness of the tail, the struc- 

 ture of the posterior nasal region, and the flatter bulla?. In 

 all these points the Bogota EcJnmys assigned last year f to 

 E. semispinosus agrees much better with Tomes's description 

 than does that brought home by Mr. Rosenberg, in spite of 

 the Ecuadorean locality of the latter. 



Lepus andinuSj sp. n. 



Size small, about as in L. syJvaticus; much larger than in 

 L. hrasiliensis. General tone of colour dusky, the markings 

 dull and inconspicuous. Forehead suffused with brownish ; 

 checks and sides of neck ashy grey. Nape dull rufous. 

 Back rather more heavily lined with black than in L. sylvati- 

 cus, the bases of the hairs very dark slaty. Rump with a 

 dull reddish suffusion, which passes down on the legs to the 

 heels. Chin and belly dull whitish, the hairs slaty for more 

 than half their length ; chest dull slaty grey, relieved by a 

 few buffy hairs. Ears rather short, though longer than in 

 L. brasiliensis, grey basally, blackish brown for their terminal 

 halves. Outside of forearm dull rufous, hands and feet 

 whitish. Tail a mere stump, hidden in the fur, coloured like 

 the rump. 



Skull rather similar in general proportions to that of 

 L. syhaticus. Interorbital region slightly concave. Post- 



* P. Z. S. 1860, p. 265. 



t Aim. & Mag. Nat. Hist. (G) xviii. p. 312 (1806). 



