196' EIGHTEEN-BANDED ARMADILLO. 
head-piece, as also the shells on his legs, are com- 
posed of roundish scales, a quarter of an inch 
over. His neck-piece is a single plate, composed 
of little pieces, a quarter of an inch square. His 
shoulder-piece consisteth of several ranks or rows 
of such-like square pieces, but not set together by 
any articulation or moveable conjunction. His 
back-piece, reaching also over his buttocks to his 
tail, is composed of several plates, in number 
eighteen, moveably joined together by as many 
intermediate -skins. The foremost and greatest of 
these plates consist of square pieces, half an inch 
long, and a quarter broad. The hindermost, of 
square and round ones together. The extreme 
part of the shell, next the tail, is parabolic. The 
fore part of the tail is suiTounded with six rings; 
consisting of little square pieces. The other half 
with scales. His breast, belly, and ears, all naked. " 
This species seems most allied to the Twelve- 
banded Armadillo. It appears not to have been 
figured by any author except Grew, whose repre- 
sentation is far from elegant, but which, for the 
satisfaction of the reader, it was thought proper 
to introduce. 
The name unicinctus, applied, as a trivial, by 
Linnaeus, must be confessed to be not very pro- 
per; since it seems to imply a simple or undivided 
zone on the animal, instead of eighteen. 
The following are clearly no other than varie- 
ties, viz. the Seveti'bancled of Lmnmt.s, Am. Acad. 
