22 36 



Proceedings of the Royal Irish Academy. 



Index of Genera— continued. 









Page. 





Page 



Patella 12 



Tapes, . .... 



31 



Persephone, 







15 



Tectum, . . . . 



12 



Pecten, . . 







27 



Tellina, 



30 



PectunculuSj 







26 



Theeacera, . ... 



25 



Phasianella, 







13 



Thracia, ... 



33 



Philine, . . 







21 



Tonicella, . . . 



12 



Pleurobranchus 







21 



Tornatina, . . . 



22 



Pleurotoma, . 







19 



Trachydermon, 



12 



Polyeera, 







24 



Triforis, . . . 



16 



Psammobia, 







32 



Triopa, .... 



24 



Purpura, ': 







19 



Trivia, .... 



17 



Pyrgulina, . 







18 



Trochocochlea, 



12 



Rissoa, . . 

 Rostanga, . 

 Pamcina, 







15 



24 



. 21 



Troehus, .... 

 Trophon, . . . 

 Turbonilla, . 

 Turritella, . . . 



13 

 19 

 18 



17 



Saxicava, 







. 33 



Turtonia, . . . 



29 



Saxicavella, 







33 







Scaphander, 

 Scalaria, 







. 22 

 13 



Utriculus, 



. 22 



Scrobicularia, 







. 30 







Scpiola, . . 







. 11 





31 



Skenea, . . 







. 16 



Yenerupis, . . . 



. 31 



Solen, 







. 33 



Yolvulella, . . . 



22 



Spinalis, 







. 21 







Syndosynia, 







. 30 



Zippora, .... 



. 15 



