808 MR. E. A. SMITH ON MARINE SHELLS [Nov. 5, 



16. Nassa taenia, Gmelin, Syst. Nat. p. 3493 ; Knorr, Vergniig. 

 v. pi. 10. fig. 3. 



N. olivacea, Bruguiere, Reeve, fig. 19; Kiener, pi. 15. fig. 53. 



Hab. "West Indies" {Lamarck and Reeve); Ceylon and Chili 

 (Kiener). 



"West Indies," which is cited by some authors as the home of this 

 species, is doubtless erroneous ; for it is scarcely possible that any species 

 of Mollusca living on the shore between tide-marks could be found 

 inhabiting such remote localities as the Andaman Islands and the 

 West Indies. It was collected by Cuming on mud banks in the 

 Bay of Manilla ; and the specimens obtained by Capt. Wilmer were 

 found on the mud in mangrove-swamps. 



17. Nassa lurida, Gould, Proc. Boston Soc. Nat. Hist. 1849, 

 vol. hi. p. 153 ; Atlas, Wilkes's Explor. Exped. pi. 19. fig. 325 a, c ; 

 Otia, p. fi8. 



N. disj)ar,A. Adams, P. Z. S. 1851, p. 96; Reeve, Conch. Ic. fig.45. 

 Hab. Samoa Islands (Gould) ; Philippines (Reeve). 



18. Nassa bifaria, Baird, Cruise of the Curacoa, p. 436, pi. 38. 

 figs. 1, 2. (Plate L. fig. 7.) 



Hab. New Caledonia 



The type of this species was brought from New Caledonia. The 

 Andaman specimens differ from that form in a few respects : the 

 plicae on the body-whorl are more numerous and more developed 

 towards the base ; and the transverse sulci on the central portion are 

 generally more pronounced. 



19. Nassa monile, Kiener, Coq. Viv. pi. 11. fig. 40; Reeve, 

 Conch. Ic. fig. 38. 



Hab. Philippines. 



20. Nassa margaritifera, Dunker. 



Buccinum margaritiferum, Dkr., Philippi's Abbild. vol. iii. pi. 1. 

 fig. 12. (Non Nassa margaritifera, Dkr., Reeve, figs. 59 a, b.) 



N. costellifera, A.Adams, P. Z. S. 1851, p. 113; Reeve, figs. 58 a, b. 



Hab. Rocks below Ross Island ; Port Blair (Wilmer). 



The shell figured by Reeve as margaritifera of Dunker certainly 

 is distinct from that species, and may possibly be a closely ribbed 

 variety of Nassa mvrginulata, Lamarck. 



21. Nassa stigmaria, A. Adams, P. Z. S. 1851, p. 96; Reeve, 

 Conch. Icon. sp. 42. 



Hab. "Dredged in deep water, Port Blair" (Wilmer). Other 

 localities are Japan, Philippines, and New Caledonia. 



The specimens from the Andaman Islands are very much smaller 

 than that figured by Reeve, having only a length of 10 to 13 millims. 

 In all other respects they agree very well, varying one from another 



