17 



371 Cardium ventricosum 

 3/2 rugosum 



373 sulcatum 



374 serratum 



375 lEEvigatum 



376 biradiatum 



377 iEolicum 



378 rusticum, Chemn. vi. t. 19, f. 197 



379 GroBulandicum 



380 Islandicum, Chemn. vi. t. 19, f. 195 



& 196, two very large and one small speci- 

 men, probably Card, crenulatum. Lam. 



381 latum, two varieties 



382 Unedo 



383 medium 



384 Fragum 



385 retusum 



386 hemicardium 



387 Cardissa 



388 var. valvarum carinS, mutic^ 



389 inversum 



390 Junonium 



391 — • angulatum ? 



392 papyraceum 



393 



394 



CARDITA. 



395 Cardita sulcatus 



396 ajar, several varieties in colour; (a) a 



distorted specimen 



397 turgid us 



398 pbreniticus 



396 crassicostatus 



397 calyculatus 



398 sqnamosus 



