294 CEYLON PEARL OYSTER REPORT. 



Gari squamosa, LAMARCK. Galle. 



Hiatula diphos, LINN. (Soletellina, BLAINVILLE). Tampalakam. 

 Hiatula (Psammotaea) radiata, DESHAYES. Trincomalee. 

 Asaphis deflorata, LINN. Trincomalee. 



FAMILY: MACTRID.E. 



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^NID^. 



GastrochsBna clava, LAMARCK (Fistulana, BRUGUIERE). Palk Bay. 

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



FAMILY: PHOLADID^E. 

 Martesia striata, LINN. Between Negombo and Chilaw. 



FAMILY: MYID^E. 



Corbula crassa, HINDS. Muttuvaratu Paar. 

 Corbula modesta, HINDS. Modragam ; Gulf of Manaar. 

 Corbula scaphoides, HINDS. Navakaddu Paar. 



FAMILY: TELLINID^E. 



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

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

 Tellina (Peronaea) cygnus, HANLEY. Gulf of Manaar. 



FAMILY: CUSPIDARHD^E. 

 Cuspidaria chinensis, GRAY. Trincomalee. 



FAMILY : SCROBICULAKllUffi. 

 Semele crenulatum, SOWERBY. Modragam. 



FAMILY: ANATINID^E. 

 Anatina labiata, REEVE. Five miles N. of Cheval Paar. 



