MAMMALIA. GLIRES. Rats and Mice. 227 



460 a. White Piloris. — M. Pilorides albidus. 

 The body is of an uniform whitifh colour. Pallas, glir. 91. n. 38. 



Mus albus zeylonicus, or White Ceylon Moufe, with a very long tail. BrHT. quad. cd. Bat. 12;. 

 n. 8. 



461 /2. Black Piloris. — M. Pilorides fulvus. 



The upper parts of the body are black or tawny ; the under parts white. Penn. hill, of 



quad. n. 240. 



Caftor, or Beaver, having a fmall round tail. Brown's Jamaica, 484. — Piloris, or Rat inufque. 

 Rochefort, Antil. 140. DuTertre, hift. gen. des Antilles, ii. 302. Sm. Buff. v. 261. — Mufk Cavy. 

 Penn. fynopfi of quad, n, 183. 



The former variety of this fpecies inhabits Ceylon, and the latter the Weft India iflands. — They 

 both burrow in the ground, fometimes infeft houfes like the Rat, and have a ftrong flavour of mufk. 

 They are nearly of the fame fize with a Rabbit, and the tail is about four inches long ; the fore feet 

 have four toes, with an excrefcence in place of the inner toe, or thumb, and the hind feet have five 

 toes ; the ears are large and naked. 



462 2. Caraco. — 4. Mus Caraco. 4. 



The tail is long, fcaly, and fomewhat blunt ; the body of a brown-grey colour ; and the 

 hind feet very flightly webbed. Pallas, glir. 91. n. 39. Nov. fp.fafc. i. 335. t. xxiii. Schre- 

 ber, iv. 643. t. clxxvii. 



Mus caraco. Penn. hift. of quad. n. 299. 0. 



Inhabits the eaftern parts of Siberia, and probably Chinefe Tartary and the northern provinces of 

 China. — Burrows, like the P.abbit, near the banks of rivers, fwims remarkably well, and even infefts 

 houfes. The body and head are fix inches in length, and the tail rather more than four inches and 

 a half: The whole body weighs fix or feven ounces: The head is long and narrow, having the eyes 

 placed very near the ears 5 the fore feet have four toes, and an excrefcence in place of a thumb, and 

 the hind feet have each five toes, which are connected at their roots by a fmall fold of the fkin ; the 

 colour of the upper parts of the body is deep brown mixed with afh colour, the belly a whitifh afh 

 colour, and the legs dirty white. 



463 3. American Rat. — Mits americanus. 



The tail is long, naked, and fcaly ; the head is long-fhaped, with a narrow pointed 

 nofe, the upper jaw being much longer than the lower ; the ears are large and naked. 

 Penn. hift. of quad. 11. 299. Arcl. zool. n. 58. Lever. Muf. 



Inhabits north America. — This animal is larger than the Black, and fmaller than the Brown Rat ; 

 it is of a deep brown colour, inclining to afh colour on the belly, and the fur is coarfe and harfh. It 

 is probably this fpecies which is faid, Kahn's trav. ii. 48. to live among the ftones and clefts of rocks, 



F f 2 in 



