CEYLON PEARL OYSTER REPORT. 

 Turritella (Haustator) columnaris, KIENEB. Deep water off Galle. 

 Turritella (Haustator) maculata, REEVE. S. of Adam's Bridge ; Trincomalee. 



Turritella (Zaria) duplicata, LINN. S.E. of Ceylon ; Welligam Bay ; Trincomalee ; 

 N. of Gulf of Manaar. 



Turritella (Eglisia) vittulata, ADAMS and REEVE. N. of Gulf of Manaar. 



FAMILY: VERMETID^. 



Vermetus (Thylacodes) dentiferus, LAMARCK. Gulf of Manaar. 

 Siliquaria cumingi, MORCH. S. of Modragam Paar. 

 Siliquaria tostus, MORCH. S.E. of Ceylon ; S. of Modragam Paar. 



FAMILY: STROMBID^. 



Strombus papilio, CHEMNITZ. N. of Gulf of Manaar. 

 Strombus (Gallinula) isabella, LAMARCK. Trincomalee. 

 Strombus (Gallinula) marginatus, LINN. N. of Gulf of Manaar ; Trincomalee. 



Strombus (Gallinula) succinctus, LINN. Pearl banks off Aripu, Gulf of Manaar ; 

 S. of Adam's Bridge ; off Mutwal Island ; Trincomalee. 



Strombus (Canarium) canarium, LINN. Gulf of Manaar ; Trincomalee. 



Strombus (Canarium) elegans, SOWERBY. Pearl banks off Aripu, Gulf of Manaar; 

 deep water off Galle ; Modragam Paar ; S. of Adam's Bridge. 



Strombus (Canarium) floridus, LAMARCK. Trincomalee. 



Strombus (Canarium) gibberulus, LINN. Gulf of Manaar ; Trincomalee. 



Strombus (Canarium) pulchellus, REEVE. N. of Gulf of Manaar ; pearl bank, 

 Aripu ; S. of Adam's Bridge ; Donnan's Paar ; Trincomalee ; deep water off Galle. 



Strombus (Canarium) samarensis, REEVE. N. of Gulf of Manaar. 



Strombus (Canarium) urceus, LINN. Pearl banks, Gulf of Manaar ; Trincomalee. 



Strombus (Canarium) yerburyi, E. A. SMITH. N. of Gulf of Manaar ; S. of 

 Adam's Bridge ; deep water off Galle ; pearl banks off Aripu ; Trincomalee. 



Strombus (Monodactylus) auris-dianae, LINN. N. of Gulf of Manaar; off Aripu. 



