MOLLTJSCAN SHELLS. 283 



Mitra (Cancilla) insculpta, Reeve. Oft' Galle ; Trincomalee. 



Mitra (Cancilla) interlirata, Reeve. Pearl banks, Gulf of Manaar. 



Mitra (Turricula) melongena, Lamarck. S. of Modragam Paar. 



Mitra (Costellaria) acupicta, Reeve. Trincomalee. 



Mitra (Costellaria) exasperata, Gmelin. S. of Adam's Bridge. 



Mitra (Costellaria) clathrata, Reeve. Gulf of Manaar. 



Mitra (Costellaria) crebrilirata, Reeve. N. of Gulf of Manaar; Trincomalee. 



Mitra (Costellaria) militaris, Reeve, var. antonelli, Dohrn. Gulf of Manaar. 



Mitra (Costellaria) mucronata, Swainson. Gulf of Manaar. 



Mitra (Costellaria) modesta, Reeve. Gulf of Manaar ; S. of Adam's Bridge ; 

 deep water oft" Galle ; S. end of Cheval Paar. 



Mitra (Costellaria) revelata, Melvill. Gulf of Manaar ; S. of Modragam Paar. 



Mitra (Costellaria) tankervillei, Melvill,* Mitra rugosa, Swain. Deep water off 

 Galle. 



Hitherto this species has been unique in the collection of Mr. J. Cosmo Melvill, 

 and was obtained by him from the collection of the late Dr. Prevost, of Alencon, 

 who had acquired it from the Norris collection. This last collection was celebrated 

 for its Mitrce, and this was one of its most particular rarities. The figures given by 

 both Reeve and Sowerby are, of course, taken from this specimen when it was in 

 the celebrated collection of shells belonging to the Earl of Tankeryille, dispersed in 

 1825. Professor Herdman's specimen is in a dead condition, and unfortunately has 

 the apex broken, otherwise it exactly harmonises with the type. This is a most 

 interesting discovery, establishing Ceylon as the locality for this rare shell. 



Mitra (Costellaria) zebuensis, Reeve. S. of Adam's Bridge. 



Mitra (Pusia) osidiris, Issel. S. of Modragam Paar. 



Mitra (Swainsonia) fissurata, Lamarck. S.E. of Ceylon ; S. of Modragam Paar. 



Family: HARPID^E. 

 Harpa conoidalis, Lamarck. Trincomalee. 

 Harpa minor, Rtjmphius. Tampalakam Lake, Trincomalee. 



* 'Journal of Conehology, 1 vol. v., p. 332. 

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