THE MOUNT DESERT EEGIOX 169 



Modiolus Lamarck 

 Modiolus modiolus Linne 



MuscuLUS Bolt en 

 MuscuLus SUBSTRIATUS (Gray) 

 MuscuLUS NIGER (Gray) 

 MuscuLus CORRUGATUS (Stiiupson) 



Crenella Brown 

 Crenella glandula (Totten) 

 Crenella decussata (Montagu) 



Periplomidae 

 Periploma Schumacher 

 Periploma fragilis (Totten) 



Thraciidae 

 Thracia Blainville 

 Thracia myopsis MoUer 

 Thracia truncata Mighels and Adams 

 Thracia conradi Couthouy 



Pandoridae 

 Pandora Bruguiere 

 Pandora (Clidiophora) gouldiana Dall 



Lyonsiidae 

 Lyonsia Turton 

 Lyonsia hyalina (Conrad) 

 Lyonsia arenosa (Moller) 



TELEODESMACEA 



Plenrophoridae 

 Cyprina Lamarck 

 Cyprina islandica (Linne) 



