Day of Bengal and the Arahiun Sea. 171 



synonymous with Oorori/s ; indeed, it seems almost ccrtuiix 

 that (). sulcata, Fischer, O. Fischeri, Locard, and ]i. ahys- 

 soruin, W'lrill, are varieties of one and the same species. 

 The hist-nanicd species is described both ])y Dall and \\'rrill 

 as havinj;: an uml)ilical chink, a feature present in tlic Iiuliau 

 Ocean sliell. It is essentially a deep-water genus, having 

 been recorded bv Verrill from 2221 fath., bv Fischer from 

 1980 fath., by 'Watson from 1850 fath., 'by Dall from 

 9.')") fath., and the present specimen is from 1912 fatli. 

 Dall, however, has mentioned the occurrence of O. ahys- 

 sonnn in 169 fath. in the northern part of the Gulf of 

 Mexico. 



In connexion with similar forms in the Indian Ocean and 

 the Atlantic, I might recall the fact of the occurrence of 

 Lucina spinifera (Alontagu) * and Poromya tornata (Jeffreys) 

 in both oceans, and that Turbo indicus, Smith, from off 

 Ceylon in 597 fath., is scarcely separable from T. peluritanus, 

 Cantraine. 



Rostellaria Powisii, Petit. 



Rostellaria Poicisit, Petit ; Smith, Ann. & Mag. Nat. Hist. 1904, vol. xiii. 

 p. 469. 



Hab. Station 237, off Andaman Islands, 90 fath., stones ; 

 and off Port Blair, 100 fath. 



Mitra {Turricula) melongena, Lamarck. 



Mifra turri'cula, Lamk. ; Reeve, Concb. Icon. vol. ii. figs. 47 «, h; 

 Sowerby, Thes. Concb. vol. iv. pi. cccliii. figs. 18, 19. 



Hab. Andaman Islands, 60 fath. ; Molucca and Philip- 

 pine Islands. 



The single specimen agrees with the figures given by 

 Sowerby. 



Columbella suavis, sp. n. 



Testa parva, ovato-fusiformis, sordide albida, lineis longitudinalibus 

 opaco-albis, infra medium anfractus ultimi rufis, obscure picta, 

 nitida, subprismatica ; spira couica ; anfractus 7, superiores tres 

 convesi, cfeteri fere plaiii, ultimus ad medium rotunde subangu- 

 latus ; apertura irregulariter ovalis ; labrum ad marginem 

 acutum, extra varice iustructum, iutus Iteve ; columella fere 

 recta, baud callosa. 



Longit. 5 mm., diam. 2-25 ; apertura To louga, 1 lata. 



Operculum minutum, ovatum, nucleo lateraH. 



* See A. Alcock's 'A Naturalist in Indian Seas,' 1902, p. 280, fig. 77. 



