150 
Of Shells. 
Part I. 
I have feen fome of thefe Shells perfectly formed in all 
their parts, not much bigger than a Cheefe-Mite. 
Thus far the Titles and Defcriptions $ the Schemes fol- 
low, which take in all, fave one or two of the Sub-Species: 
and wherein the Order is a little more corrected. 
Scheme r. 
Shells 
are 
Not Whirled. Scheme 2. 
^Conick. Scheme 3. 
rSingle^ ('Apparent, CBody «f 
Whirled. Jwith more <f £ Oval. Scheme 4. 
The Whirled ^Whirle. Scheme 5. 
(Latent. Scheme d. 
cDouble. J 
XNot Single. < ^Scheme 7. 
t Multiple.^ 
r A little 
open 
.Orbicular, 
with 
Scheme 2. 
J White J Button-Fifh, or 
cThe Greater \ Red j Edible Sea-Ur- 
• Five Orders^ C White I chans. 
iof Prickles cThe Leffer^Brown ^Echini ef- 
£Green j \ culenti. 
JTen Orders 1 
of Prickles. j 
^ , C The Greater. The Great Mare-Maids-Head., Echinometra. 
a ^The Lefler.The Little Mare-Maids Head.Ecbinus Spatagm 
Not whirled^ 
Low. 
r Level, \ 
or plain-fided ^High or V. Level. 
CConick. With < 
Wide open ^ the edge ^Not level. 
/"Equal or /*W r aves, 
f ProminentA even, \ > Limpets. 
Oval. With with fidesSUneven.S deep I Patella. 
I the Navle. I ( With (.Furrows. \ 
(Only a little 
.Windings obliquely. The Vaulted 
jLimpst.Fatella concamfrata. 
(Spirally. Auris marina. J 
Scheme 3. 
