258 WORMS. TESTACEA. 66. Oftrea. 
Moll of this genus are furniftied at the hinge internallr^ 
numerous parallel tranfverfe grooves in each valve, a”®, 
immediately diflinguifhed from the Genus Area, in 
ing teeth alternately locking in each other: the Scallops 
out of the water to the diftance of half a yard, and 
the (hellf, ejea the water within iheroj after which they “f, 
under the water, and fuddenly clofe the fheils with a loud 10®' 
A. Valves fumrjhed with ears and radiate. Scallop' 
a. ALquelateral : ears of the valves equal. 
•Maxhna. Shell with about 14. rounded and longitudinally ftriate 
Donovans Brit jheils, it. tab. 49. ^ 
Pennimt Brit.Zool iv tab.^c). fig 6t. 
Da Cofta Brit, conch, p. 140. tab. c).f. I, 
Lister, an. Ang. tab. 5./. 29. Conch, t. 363, 167. 
Bonan recr. 2. fg. S Muf. Kirch, z. f.-j . 
Gualt. teft. tab. 98. A, B t. 99. A. 
Knorr Vergn. I. tab. 14./. ,, 2. & 2. t. 14./. i. 
Begenj. conch. 1. tab 2,f. 19. /. 7./. 3. 
Bytem app. tab. \ 2. ftg. 30. 
Chemn. conch. 7. tab. OO. fig. 585 587. 
Z. Lister costch. tab. 168. a, 
3. Knorr detic. nat./et. tab, B. ii.fg. 2 ? 
Knorr Vergn, i . tab, 4. fsg. 2 I ^ 
Found in moll European feas, in large beds ; whence th^y i( 
dredged up, and pickled and barrelled for fale. This j, 
fliell which was formerly worn by pilgrims on the hat of ^ 
as a mark that they had crofTed the fea, for the purpofe of 
mg their devotions at the Holy Land : in commemoratK”' 
which it is Hill preferved in the Arms of many families- ,, of' 
Shell Abont 5 inches long and broad : ears laage, with d^ 
fate ftrias ; hinge with a large deep hollow : M 
vex, white, often varied with red bands or fpots; uppV’'^ 
flat, reddilh. ^ " 
* 7 acob<za. Shell with about 14 angular and longitudinally ftriate 
Pennant Brit. Zaol. iv. tab, 6o fig, 62, 
Lifter conch, tab. 165, 166. Lejfer te/t ftg. 139. 
Bonan recr. and Muf. Kirch. 2,f, 34 
Knorr Vergn. 2 tab. 22. f. 3. 5. ). 4 and 6. t. f&.f 
Gualt. te/t. tab. 99. B. 
Cbetnn conch. 7. tab. 60. fg. 588, 589. 
Inhabits European feas; lets than the laft. 
Grooves of they/if// tranfverfely ftriate ; upper-valve flat’ 
rounded rays, which are very finely ftriate tranfverfely » 
■valve with angular rays, which are ftriate longitudinally' 
concave and fniooth on the upper fide. ^ .^1 
if)' 
r,. 
