258 WORMS. TESTACEA. 66. Oftrea. 



Mofl of this genus are furniflied at the hinge internally with 

 numerous parallel tranfverfe grooves in each valve, and are 

 immediately diltinguifhed from the Genus Area, in not hav- 

 ing teeth alternately locking in each other : the Scallops leap 

 out of the water to the diftance of half a yard, and opening 

 the ftiel 1 5, eject the water within them; after which they fink 

 under the water, and fuddenly clofe the ftiells with a loud fnap. 



A. Valves furnijhed with ears cuid radiate. Scallop. 

 a. ALouelateral : ears of the valves equal* 



•Maxima. Shell with about 14 rounded and longitudinally finale rays. 

 Donovans Brit, fJieils, ii. tab* 49. 

 Pennant Brit.Zool. iv. tab. 59. fig 6l. 

 Da Cofita Brit, conch, p. 140. tab. g.fi. 3/' 

 Lifter, an. Aug. tab. 5. f. 29. Conch, t. 263, 167. 

 Bonan recr. 2. fig 8. Muf. Kirch. 2. f. 7. 

 Gualt. teft. tab. 98. A, B /. 99. A. 

 Knorr Vergn. I, tab. 1 4./. I, 2. & 2. /. \\*f. t« 

 Regenfi. conch. I. tab. 2,fi. 1 9. /. J.f. 3. 

 Bytem app. tab. \z. fig. 50. 

 Chemn. conch. 7. tab. 60. y?£. 585 — 587. 



2. Litter conch, tab. 1 68. a, 



3. Knorr delic. nat.fiel. tab. B. ii.^. 2 ? 

 Knorr Vergn. 1 . tab. 4. yi^. 2 ? 

 Found in molt. European Teas, in large beds ; whence they are 



dredged up, and pickled and barrelled for fale. This \» the 

 fhell which was formerly worn by pilgrims on the hat or coat, 

 as a mark that they had crofted the fea, for the purpofe of pay. 

 ing their devotions at the Holy Land : in commemoration of 

 which it is (till preferved in the Arms of many families. 

 Shell about 5 inches long and 5 J broad ; ears laage, with decuf. 

 fate ftrias : hinge with a large deep hollow : lo<mer-<val e ve con- 

 vex, white, often varied with red band6 or fpots; upper-valve 

 flat, reddifn. 



*Jacobaa* Shell with about 14 angular and longitudinally ftriate rays. 



Pennant Brit. Zool. iv. tab. 60 fig. 62. 



Lifter conch, tab. 165, 166. Lejfier tefit. fig. 1 39. 



Bonan recr. and Muf. Kirch. Z.fi, 3, 4. 



Knorr Vergn. 2. tab. ZZ.fi. 3, 5. /. ZZ.fi. 4 and 6. t. 38. f, I. 



Gualt. teft. tab. 99. B. 



Cbe7nn conch. 7. tab. 60, fig. 588, 589, 



Inhabits European feas ; lefs than the laft. 



Grooves of the Jkell trznfvcrfely ftriate ; upper-valve flat, with 

 rounded rays, which are very finely ftriate tranfverfely ; lower 

 -valve with angular rays, which are ftriate longitudinally : ears 

 concave and fmooth on the upper fide. 



Ziczac 



