276 WORMS. TESTACEA., 66. Oftrea, 
Spmdih. Shell equivalve, pellucid, flattened, oval, beaked, glabro*!^ 
* with perpendicular undulate granulate ftriae on 
upper- valve; margin very lharp. 
Chemn. conch. ^ tab. ^2. f,g.()b^, 6 yL 
Inhabits India \ ^ 3 inches 2 lines long, 2 inches e lines bro* ' 
fncli w'hite with a few tawny fpots. 
Farjhahlii. Shell plaited and terminating in a long incurved 
beak ^ the middle ribs with imbricate Ipinous wrinkle®’ 
the other valve flat. 
Chemn. conch. 8. tab. 72.7%. 671, a, c. , i, 
Inhabits the Redjia: 2 inches 3 lines long, and about an 
broad : the flat valve whitilh, the other fubviolet. 
FJicatula, Shell with longitudinal wrinkled plaits ; the lower-vah'® ^ 
little lefs and flatter. 
Gualf. teft, tab. 104, A. 
Chmn. conch. 8 . tab. 73. fig, 674, 
Inhabits American and Mediterranean feas ; varies very niucb 
lhape and lize, but is generally cinereous with a 
violet, fometimes white with red or blueilh ftreaks. 
f.ostrata. Shell oblong, rugged; the upper-valve lamellate 
denticulate maygin, the other excavated and longit^*^ 
nally groovejd : beak prominent. 
Cualt.teft. tab, 102,^^. D. 
Ubemn, conch. 8. tab, 73, Jig, 6 j 6 . 
Inhabits the Mediterranean : upper-valvc yellowifh-greef’ J 
other violet varied with white ; within cretaceous or eha‘‘‘I 
white. 
I^irginica. Shell nearly cquivalvc, thick, rough, lamcllous; one 
with a protiiineiit beak. 
fji/er conch, tab. 200. fig, 34. 
Chemn. conch. 8. tab, Ti- fig. (>TJv 
2. Lister conch, tab, 201. f. 33. 
Chemn, ccnch. 8 . tab. 74. fg, 678. ^ ; 
Inhabits American and Indian Ocean : g inches long and 4br®^ 
whitilh or ocliraceous, within gloffy-white. 
* • 
Qomucopice- Upper-valve flat, lower-one hollow and ftriatCj rough ^ 
fcales, wrinkles and plaits, and ending in an elong^^® 
beak. 
Born Muf. Ccef. I'ind^ te/t. tab. fig, II, 12, 
Chemn. conch. 8. tab -]![■, fig. 679. 
Inhabits the Indian and African ocean. 
