294 CEYLON PEARL OYSTER REPORT. 



Gari squamosa, Lamarck. Galle. 



Hiatula diphos, Linn. (Soletellina, Blainville). Tampalakam. 

 Hiatula (Psammotsea) radiata, Deshayes. Trincomalee. 

 Asaphis deflorata, Linn. Trincomalee. 



Family: MACTRIDvE. 

 Mactra antiquata, Spengler. Gulf of Manaar. 

 Mactra luzonica, Deshayes. Gulf of Manaar ; Galle. 

 Mactra ornata, Gray. Off Negombo ; Aripu ; E. of Ceylon. 

 Hemimactra (Oxyperas) triangularis, Lamk. Off Negombo ; G. of Manaar ; Galle. 



Family : GASTROCH^ENID^F. 

 Gastrochaena clava, Lamarck (Fistulana, Bruguiere). Palk Bay. 

 Rocellaria lagenula, Lamarck (Gastrochaena, Lamarck). Modragam. 



Family: PHOLADID^. 

 Martesia striata, Linn. Between Negombo and Chilaw. 



Family: MYIim 

 Corbula crassa, Hinds. Muttuvaratu Paar. 

 Corbula modesta, Hinds. Modragam ; Gulf of Manaar. 

 Corbula scaphoides, Hinds. Navakaddu Paar. 



Family: TELLINID^. 

 Tellina (Tellinella) rostrata, Linn. S.E. of Ceylon. 

 Tellina (Tellinella) virgata, Linn. Gulf of Manaar. 

 Tellina (Peronsea) cygnus, Hanley. Gulf of Manaar. 



Family: CUSPIDARlIDiE. 

 Cuspidaria chinensis, Gray. Trincomalee. 



Family: SCEOBICULAKlIDiE. 

 Semele crenulatum, Sowerby. Modragam. 



Family: ANATINID^E. 

 Anatina labiata, Reeve. Five miles N. of Cbeval Paar. 



