164 



rotundatis instructa ; plicis inferne subtuberculosis ; apertura 

 utrinque attenuata ; columella contorta. 



The individuals before us appear to have lost all their colour, 

 and are uniformly pale. The folds are remarkable from 

 terminating at their inferior extremity in a swelling or 

 tubercle. A fossil species had previously received Mr. Gray's 

 name. 



Africa : Gray. Gallapagos Islands ; in six fathoms, coral 

 sand : Cuming. 



39. T. PLUMBEA. (pi. xliv. f, 70.) Quoy, Voy. de 1' Astro- 

 labe, p. 470, t. 36, f. 29, 30. 



Testa subulata, acuminata, turrita, polita, nitida, nigricante ; 

 anfractibus planulatis, integris, superne juxta suturam albidis, 

 infra saturatioribus, plicatis ; apertura effusa, atro-fusca ; colu- 

 mella nuda, rectiuscula. 



A neat highly polished shell with entire whorls and longi- 

 tudinal folds. The whorls at their upper margins are pale, 

 and immediately beneath of a more intense dark than 

 elsewhere. 



Moluccas : Quoy and Gaimard. Cagayan, Island of Misa- 

 mis, Philippines : Cuming. 



40. T. NITIDA. (pi. xlv. f. 103.) Hinds, 1. c. p. 152. 



Testa obeso-subulata, acuminata, pallide plumbea, polita ; 

 anfractibus subplanulatis, recte plico-costatis, superne inter- 

 stitiis linea punctata cinctis, ultimo parvo subattenuato, uni- 

 colore, plicis evanidis ; labio interno producto ; labro antice 

 subsinuoso. 



An excellent diagnostic character exists in this species, in 

 the circumstance that the girdling line which traverses the 

 upper part of each whorl does not cross the ribs, but is con- 

 fined to the interstices. 



Marquesas ; in seven fathoms, sandy mud. 



41. T. HASTATA. (pi. xliv. f. 87-) Sowevby, 1. c. p. 76. 

 Buccinum hastatum, Gmelin. Terebra costata, Menke. 

 Syn. Mus. p. 84. 



Testa subulata, cylindracea, acuminata, subturrita, polita, 

 alba, brunneo subfasciata; anfractibus planulatis, integris, plicis 

 numerosis politis, ultimo attenuate, fasciato ; apertura 

 attenuata ; columella nuda, recta, truncata ; canali nullo. 



Remarkably cylindrical, acuminate, white, the lower por- 

 tions of the whorls irregularly ornamented wdth pale brown. 

 The whorls are entire, with numerous polished folds con- 

 tinuous throughout their breadth. Native country \inknown. 



