MAMMALIA. 



51 



" The nature of the country where this specimen was procured is nearly 

 the same as in that part of the Chonos Archipelago, 150 miles to the south, 

 where the first was obtained." D. 



14. Mus Renggeri. 



Plate XV.— Fig. 1. 

 Mus olivaceus, Waterh., Proceedings of the Zoological Society of London, for February 1838, p. 16. 



M. corpore suprh subolivaceo, subtiis cinerescente ; auribus mediocribus, rotundatis, 

 pilis parvulis fuscescentibus obsitis ; caudd corpore breviore, pilosa, supra fused subtiis 

 albescente; pedibus pilis fuscescentibus tectis. 



Description.— Fur moderate ; ears moderate ; tail shorter than the body ; general 

 colour gray washed with yellow ; under parts grayish white. On the upper 

 parts and sides of the head and body the hairs are gray, broadly annulated 

 with yellow near the apex, and dusky at the apex ; the mixture producing 

 a yellowish gray tint, approaching somewhat towards olive : — the hairs on the 

 under parts of the body and throat are deep gray at the base, and white at 

 the apex ; the hairs of the feet are brownish white. The tail is tolerably well 

 clothed with hairs ; those on the upper surface are brown, and those on the 

 under are dirty white. The ears are well clothed, both externally and in- 

 ternally, with hairs of the same colour as those on the upper parts of the body. 

 The hairs of the moustaches are for the most part whitish, and black at the 

 base. The upper incisors are pale yellow, and the lower incisors are yellowish 

 white. 



Length from nose to the root of tail 

 of tail . . . . 

 from nose to base of ears 



In. Lines. 



5 1 



2 8 



1 2 



Length of tarsus (claws included) 

 of ear 



Lines. 

 11 

 5 



Habitat, Valparaiso {August and September,) Coquimbo {May.) 



Subsequent to the description of this species, under the name of M. olivaceus 

 in the Zoological Society's Proceedings, I have imagined that perhaps that name 

 might mislead as regards the colouring of the animal ;— it certainly has a slight 

 olive hue, but it is not very evident. I have therefore changed the name, and 

 substituted that of the author of the " Naturgeschichte der Siiugethiere von Para- 

 guay," &c. 



