548 Proceedings of the Royal Irish Academy. 



LagejSta — continued. 



curvilineata, noT. sp. Yery rare, 

 gracilis, "Will. Very rare, 

 striato-pnnctata, P. & J. Very rare, 

 semistriata, Will. Common, 

 aspera, Reuss. Very rare, 

 hispida, Reuss. Very rare, 

 caudata, D'Orb. Prequent. 

 marginata, "W. & J. Rare. 



var. D'Orbignyana, Sequenza. Common. 



var. trigono-marginata, P. & J. Very rare. 



var. quadrata, Will. Very rare, 

 ornata, Will. Very rare. 



var. trigono-ornata, Siddall. Very rare, 

 lucida, Will. Common. 



var. (trigono-) oblonga, Sequenza. Very rare, 

 lagenoides, Will. Very rare, 

 squamosa, Montagu. Very common, 

 hexagona, Will. Frequent. 



LiNGULiNA, D'Orb. 



carinata, D'Orb. Very rare ; a single specimen only. 



KoDosAiiiA, Lamk. 



raphanus, Linn. Very rare ; a single specimen only, 

 scalaris, Batsch. Rare. 



pyrula, D'Orb. and dentaline variety. Very rare, 

 hispida, D'Orb. Very rare; a single specimen only, !Newto 

 Britain. 



Dentalina, D'Orb. Rare, 



communis, D'Orb. Rare. 



consobrina, D'Orb. Very rare. ; 



VAGEsruLiKA, D'Orb. 



legumen, Linn. Very rare. 



linearis, Montagu. Very rare. j 



MAEorNTJLiisrA, D'Orb. " 



glabra, D'Orb. Very rare. 



Ceisteliama, Lamk. 



rotulata, Lamk. Very rare. 



vortex, P. & M. Very rare ; a single specimen only ; off 



Ireland's Eye, seven to nine fathoms, 

 cultrata, Montfort. Very rare ; a single specimen only ; off 



Ireland's Eye, seven to nine fathoms, 

 crepidula, E. & M. Very rare. 



