Part I. 
Of Shells. 
*5? 
Scheme 6. 
-Even 
"CompreflTed 
-Uneven< 
vBrown and Black 
1 Pearl-colourM 
^Spiked . . 
^Plated 
Sailers. 
Nautili. 
Shells With i 
a Latent 
Whirle. 
With the Body 
:Right. 
Expanded 
i^With Lips 
'Not K 
Doubled 
i One Lip. 
With < The "> 
Furrows, J *■ CLeff. rNivled 
on jr. . .1. ^Thin. t High-back'd J 
— i 
Scheme 7. 
f Inarticu- 
late 
^iMfhick} 
" ^Lips ^Long 
Smooth-Lip'd.£ Plain 
1 \With theBack< 
j ^Bunched 
{_ Turned out or doubled. 
^Not Navled 
Venus- 
Shells. 
Conch* 
VtnttUn 
~The Great One, called Tinna. Sea-Wing. 
^ (Heming in the Navle. Cbeftnut-Oyjkr. 
: Letter. (Circum-S C Similar. 
With the) ference SPvunning through it.«^ 
S ( With fides ^Diffimil ar. 
(Bafe (haded. 
^Even 
cRounder} ^Smooth 
"Eared < /Furrow'd) 
•Lefs ^ cLonger, * Rough 
^Concave f Waved 
'Doubled 
Shells*; 
Articu 
late. 
With the 
V. Navle. 
f Strait. . 
With 
Valves 1 
. j 
_ Oblique. 
With the 
fides. 
More dif 
fimular, 
u With the< 
(Greater. Circum- 
fConick )Centre- ference 
I Multi- ( S (hell, 
t P le < (Lefs.Sponge- 
Centre-fliell. 
\t , T7 Xtit , , • , , , r Concha Corallin&i 
Not Eared c Waved and wrinkled, i 
More. Gaping-Mufclc. Cbama. 
. Strait. The Sheath-Fitti. Sokn, 
r Almoft fitmlar. \ , Expanded. 
cFew. With) r Solid. 
Crooked. < Valves cRound--^ 
With JoyntsC Numerous. er cFiftulaf 
r ln partr Bafe. r Few. Oflrea Gaderopoda. 
tfrait. ^With <> 
The «v JoyntS I Numerous. Concha m\i>\tirl<>y'itf\vjiA@*. 
<? C Eredr ed . Square- 
•Side<Mufcle. cLefs. 
tPfoduced<More. Concha Margari- 
ta iifera. 
cRough. 
?< 
Circi- 
rUneven. ^nated ^Smooth. Tel!i/i£. 
iFlat. /-Naked-) . , 
With the) (W* 
ft a r e < >Concb£ Ana- 
(Scaled) tl f™' 
Crooked 
round 
'^about. 
With 
Vi nlves 
With Fur- 
rows. 
Even 
J ('Round. 
Toothed. \ 
Expanded. 
< 
^Radia-<; ) With )C OTC ^ 
ed. With ) Une /^ alvs iTridacl. 
the Edge ^.ven v Furrow d. r- Longer. 
■ Long. With J 
-Lefs. ValvsCshatta. 
) QDeep. 
jExpand-< f Joyntty 
V ^ ^Shallow, fpirpn 
r v , J t -VViththe\ 
S^TS Ed S e >ooth- 
With J C ed. 
(.Plated Valves. 
X SECT. 
