OF MERGUI A.WD ITS ARCHIPELAGO. 



179 



Sullivan Island, littoral. A specimen of 105 millim. in length 

 and 72 millim. breadth ; Ostrea cucullata fixed to it. Mauritius, 

 Marquesas. 



107. Purpura (Stramonita) manclnella, L., Kiener, fig. 46 ; 

 Reeve, Conch. Icon. iii. pi. i. fig. 2 ; Quoy Sf Gaimard, Voy. 

 'Astrolabe; Zool. pi. 38. figs. 14-16. 



Elphinstone Island. Madagascar, Ceylon, Amboina. 



108. Purpura (Thalessa) hippo cast anum, L, 



Var. P. estermedia, Kiener, fig. 34. — P. distinguenda, Dunker, 

 Moll. d. Nomra Kxped. pi. 1. fig. 3. 



Mergui, Elphinstone Island ; Crow Islet, between King 

 Island and Hayes Island ; Sullivan and Owen Islands. Mauritius, 

 Zanzibar, Nicobars. 



Var. Purpura bitubercularis, Kiener, fig. 32. — P. Kieneri, 

 Deshayes. 



Elphinstone Island ; King Island. Mozambique, Zanzibar, 

 Moluccas, Australia. 



109. Purpura (Cuma) imperialis (Blainvillet), Kiener, 

 fig. 39 ; Reeve, Conch. Icon. iii. pi. vii. fig. 30. 



Mergui f . 



The original figure of Blainville, loc. cit. pi. 11. fig. 6, is rather 

 different. 



110. Purpura (Cuma) tiarella, Lam., Kiener, fig. 41 ; Reeve, 

 Conch. Icon. iii. pi. ix. fig. 39. 



Nearly allied to the preceding. 

 Mergui, mud-flats. Port Canning. 



The shell from Yanikoro, figured by Quoy and Graimard, Voy. 

 'Astrolabe,' seems also very different, and resembles rather Rici- 

 nula turbinella. 



111. Purpura (Cuma) sacellum, Chemnitz, Conch.- Ca met, 

 vol. x, figs. 1561, 1562 ; Kiener, Purpura, pi. 14. fig. 39 a ; Reeve, 

 Conch. Icon. iii. pi. xi. fig. 58. 



King Island. Tranquebar, Nicobars. 



112. Purpura (C uma?) costata, Plainville, JVouv. Annales 

 Mus. Hist. Nat. i. 1832, pi. 11. fig. 8 ; Kiener, fig. 51. 



Purpura gradata,, Jonas, Philip pi, Abbildungen, Purp. fig. 2. 

 Purpura trigona, Reeve, Conch. Icon. iii. pi. xi. fig. 53. 

 [Recognizable by its biconical form. 



