The Hifiory of A N I M A L S. 
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Cylindrus tenuior albidus fufco variegatus . 
Jlender , whitijh Cylindrus , variegated with brown . 
This is three inches and a half in length, and fcarce an inch and a quarter in dia- 
meter; it is of a tolerably regular cylindric figure, but is fomewhat fmaller toward the 
point than elfewhere, and a little, though very little lefs at the head, than fomewhat 
lower down . the clavicle has five or fix volutions, and is pointed j the ground colour 
is whitifh, but is very elegantly variegated with brown, difpofed in narrow and irregu¬ 
lar lines, and in great irregular fpots, covering a very confiderable part of the fur face. 
We have it from the coafts of South America : the Dutch call it the Brunette. 
Cylindrus albefcens zonis literatis. ^ 
The white Cylindrus , with lettered zones . 
This is one of the fmaller Cylinders: it rarely exceeds an inch and a quarter in 
length, and is lefs than half an inch in diameter : the clavicle has four or five volu¬ 
tions, and the body of the (hell is fplit at the other extremity, by the continuation 
of the mouth: the ground colour is white, which is preferved tolerably pure over a 
great part of the body, but near each extremity there is a broad zone ; thefe are not 
of one continued colour, but are lineated and variegated in fuch a manner, that 
fanciful people have fuppofed themfelves able to make out evident letters, in particular, 
the capitals B, D, and A frequently repeated in them. 
We have it both from the Eaft Indies, and South America; but few of thofe 
brought over are in high perfection. 
Cylindrus tenuior fufco et albo variegatus . 
The fender Cylindrus , variegated with brown and white . 
This is an extreamly elegant fihell: it grows to three inches long, and about an inch 
and a quarter in diameter : it’s figure is nearly cylindric, the two ends being only a very 
little fmaller than the middle $ the clavicle has four or five volutions, but is not much 
elated, and terminates obtufely : the colours are only two, a bright white, and a pale 
tawny brown 5 they each take up fo great a fhare of the furface, that it is not eafy to 
fay which is the ground colour ; and they are difpofed in a beautiful manner in denti¬ 
culated lines: the whole furface has a fine natural polifh, and the colours have a 
lingular brightnefs. 
It is brought to us from South America. 
The other fpecies of the Cylindrus are, 1. Of thofe which have the clavicle con¬ 
tinuous with the body, or not feparated by a deprefled circle ; 1. The elegant, yellow 
Cylindrus, called the Gold-brocade Ihell. 2. The elegant, white Cylindrus, called 
the Silver-brocade fihell. 3. The pale, lemon-coloured, variegated Cylindrus. 4. The. 
fafciated, large Cylindrus. 5. The Cylindrus, blotched with yellow and white. 6. The 
cancellated or reticulated Cylindrus. 7. The Cylindrus, with the variegations repre- 
fenting feathers. 8. The elegant Cylindrus, variegated with blue. 9. The granu¬ 
lated Cylindrus, with a great multitude of fpots, and little pun&ules. 1 o. The ele¬ 
gant, pale, yellow, granulated Cylindrus. 11. The dufky brown, and filvery- 
white, variegated Cylindrus. 
2. Of thofe which have the clavicle feparated, as it were, from the body of the 
fihell by a circle, there are, 1. The elegantly variegated, brown and yellow Cylin¬ 
drus. 2. The pale Cylindrus, with clouded and lineated brown fpots. 3. The 
white Cylindrus, with dufky blackifh, nebulous fpots. 4. The pale brown and purple 
Cylindrus. 
3. Of thofe which have the clavicle coronated, there are, 1. The fine, brown and 
white, fatteny Cylindrus. 2. The fine, filvery, variegated Cylindrus. 3. The pale 
brown, variegated, glofiy Cylindrus. 4. The filvery and brown Cylindrus. 
4. Of thofe which have the columella not fmooth, as it is in all the others, but 
wrinkled or rugofe, there are, 1. The greenifih, olive Cylindrus. 2. The greyifh, 
agaty Cylindrus, with variegations on the lower part. 3. The white Cylindrus, varie¬ 
gated with purple and brown. 4. The purple Cylindrus, fpotted with white. 5. 
The 
