new Neotropical Manimuls. 283 



less spatulate than in E. semispinosus ] bullae much swollen, 

 considerably larger than in the latter species. 



Dimensions of the type (an adult female, measured by 

 collector in the flesh) : — 



Head and body 235 millim. ; tail 153 ; hind foot (s. u.) 48 ; 

 (ear of another specimen 27). 



Skull: greatest length 56 ; basal length 47 ; basilar length 

 to henselion 40*2 ; zygomatic breadth 2^ ; nasals 20'5x 6'3 ; 

 inlerorbital breadth 11'7 ; greatest spread of parietal ridges 21 ; 

 palate length from henselion 19"2 ; diastema 11*4; length of 

 upper molar series 9*5. 



Hah. Chongon, Guayas Province, west of Guayaquil, 

 Ecuador. 



Type B.M. no. 99. 8. 1. 48. Original number m. Col- 

 lected 21st November, 1898, by Mr. P. O. .Simons. Five 

 specimens obtained. 



This Echimys is closely allied to E. semispinosus, Tomes 

 (the original specimens of which seem to have been discoloured 

 by spirit), but may be distinguished by its shorter nasals, 

 less heavily ridged supraorbital and parietal regions, narrower 

 pterygoids, and larger bullai. 



Coendou quichua^ sp. n. 



Similar in general characters to C. hicohr, Tschudi *, but 

 smaller and with much shorter spines, which are mostly 

 white-tipped. 



General covering mainly spinous, but not, as in G. hicolor, 

 entirely so, as there are on the upper surface a number of fine 

 black hairs intermixed with the spines, and of about the 

 same length as the latter. Spines of upper surface about 

 35-50 millim. in length, longer, as usual, along the centre of 

 the back, shorter elsewhere ; the diameter of the thickest 

 about 1"2 to 1*4 millim. ; in colour they are pale whitish 

 yellow for from one half to two thirds their length, then 

 black, with the terminal 3-5 millim. white, the white giving 

 a markedly speckled appearance to the whole animal, although 

 on the posterior back some of the spines are wholly black- 

 ended. Under surface entirely spinous, the spines being 

 flattened, about 20-30 millim. in length and about ^ millim. 

 or even less in breadth ; white basally, then black with a 

 long whitish hair-like end. Muzzle dark brown ; whiskers 



* Faun. Peruana, Maium. p. 186, pi. xiv. (1845). I use Tschudi's 

 name for the present, as the identification of the Peruvian species with 

 C. nycthemera, Kuhl (Beitr. Zool. p. 71, 1820) — iusufficienth'- described 

 and without locality — seems too uncertain to be accepted. 



