Part I. 
Of Sheik 
The SHORT WHIRLE. Ttochm. This is fomewhat 
more prolonged than fome others of this kind, the Bafe 
broader, and the Rounds in a level. Of this fort here are 
two great Ones, curioufly ltained with Crimfon w r aves 
from the Bafe ( which is about four inches over ) to the 
Cone. It is of kin to that which by Columna is called Turbo 
Perficus maximus. 
Another level SHORT WHIRLE,alfo fomewhat longer 
than the reft, and with the Rounds in a level, but the Bafe 
narrow. 
A thin level SHORT WHIRLE , fhortcr than the 
former, and with flat rounds. Here are two forts of this 5 
the one with fmooth , the other with ruged or knobed 
rounds. 
A fourth WHIRLE of the fame kind, with high rounds. 
Here are alfo two forts of this 5 the one fmooth, the other 
ruged. 
The BELLY'D SHORT WHIRLE with fpiked rounds. 
'Tis no where defcribed that I find. The Bafe two inches 
broad, the Cone as high. The Mouth almoft round, and 
wit in of a Pearl colour. The whole fhell without whitiih. 
The Bafe all over wrought with round, and obliquely 
radiated wrinkles. The rounds are knobed, and the under 
edges of every round with flat doubled Spikes. Here are 
two more of the fame fort, with the Spikes ground off. 
Another BELLY'D SHORT WHIRLE, almoft fmooth, 
having only very fmall wrinkles, without any Spikes. 
The CONCAVE SHORT WHIRLE. Trochus centra 
late concavo. Hitherto undefcrib'd. 'Tis two inches broad, 
an inch an * high, being Belly 'd, and having the Cone much 
depreffed. As alfo the Mouth, which is therefore a flattifh 
fquare. Both the Bafe and the Rounds are wrought with 
fmall fpiral and radiated wrinkles running acrofs. It hath 
five or fix rounds, fomewhat fwelling. Not, as in molt 
other (hells, contiguous in the centre, but thence receding, 
leave a wide fpace in the middle of the fhell, reprcfenting 
in fome fort a pair of Winding-Stairs. The ridges alfo of 
the rounds are wrought with Tooth-Work^ , anfwermg to the 
Sculpture on the edges of a Stair-Cafe. 
There are feveral forts of fhort Whirles or Trochi, faies 
Mr. Lyfter , (a) found in England , as at the Mouth of W 
Vmber 7 md in Lincoln-jhire by the Sea-fide. The 
