27 o CEYLON PEARL OYSTER REPORT. 



Clanculus microdon, A. ADAMS. Palk Bay ; S. of Modragam Paar. 



Gibbula fanuloides, FISCHER. Palk Bay. 



Gibbula pulcherrima, A. ADAMS. Gulf of Manaar ; off Aripu ; off Galle. 



Monilea callifera, LAMARCK. Gulf of Manaar. 



Monilea callifera, var. masoni, NEVILL. Chilaw Paar. 



Minolia gradata, SOWERBY. S. of Adam's Bridge. 



Minolia variabilis, A. ADAMS. Off Galle. 



Solariella variabih's, A. ADAMS. Pearl banks, Gulf of Manaar. 



Calliostoma scobinata, A. ADAMS. Jokkenpiddi Paar. 



Calliostoma tranquebarica, CHEMNITZ. From stomach of Astropecten, off Chilaw. 



Euchelus asper, GMELIN (Aradasia, GRAY). S. of Modragam. 



Euchelus atratus, GMELIN. Pearl banks, Gulf of Manaar. 



Euchelus proxhnus, A. ADAMS. Gulf of Manaar ; Palk Bay. 



Euchelus pullatus, ANTON. Between Negombo and Chilaw. 



Euchelus tricingulatus, A. ADAMS. Gulf of Manaar. 



Umbonium (Rotella) vestiarium, LINN. Tampalakam Lake, Trincomalee. 



Ethalia carneolata, MELVILL. : Gulf of Manaar ; off Galle ; S. of Adam's Bridge. 



Ethalia guamensis, QUOY. N. of Gulf of Manaar. 



FAMILY: TURBINIM). 



Phasianella variegata, LAMARCK. Pearl banks, Gulf of Manaar ; S. of Cheval Paar. 

 Phasianella variegata, var. nivosa, REEVE. S. of Adam's Br. ; Modragam ; off Galle. 

 Turbo radiatus, GMELIN. Pearl banks. Gulf of Manaar ; S. end of Cheval Paar. 

 Turbo radiatus, var. chemnitzianus, REEVE. Cheval Paar, Gulf of Manaar. 

 Turbo (Marmorostoma coronatus, GMELIN. Trincomalee. 

 Turbo (Senectus) argyrostomus, LINN. Welligam Bay. 

 Astralium steUatum, GMELIN. S, of Adam's Bridge ; Galle lagoon. 



