MOLLUSCA. 35 



144. Terebra lactuosa, Hinds, 1. c. p. 157. Testa gracile acuminata, laevigata, polita, atro- 

 fusca, rarius castanea. vel olivacea; anfractibus subplanulatis, integris, superne plicis parvis undatis, 

 infra evanidis, ultimo elongato, concolore; columella lasvi, breviuscula. 



Inhab. Gulf of Nicoya ; Puerto Portrero, west coast of America ; in twelve 

 fathoms, coral sand. 



145. Terebra tenera, Hinds, 1. c. p. 158. Testa parva, obeso-subulata, laevigata, nitida, an- 

 fractibus plico-costatis, pallide fulvis, superne prope suturam rufo fasciatis, ultimo ad basin rufo; 

 plicis continuis ; columella contorta. 



Inhab. Straits of Malacca, in seventeen fathoms; Ceylon. 



146. Terebra mera, Hinds, 1. c. p. 158. Testa, subcylindraceo-subulata, laevigata, nitida, 

 albida, vel pallide rufo late fasciata; anfractibus subplanulatis, superne plicis parvis numerosis 

 obliquis, infra evanidis ; apertuia parva, elongata; columella subtruncata. 



Inhab. Straits of Malacca, in seventeen fathoms. 



147. Terebra pygmcea, Hinds, 1. c. p. 158. Testa purpurea, obeso-subulata; anfractibus 

 paucis, subrotundatis, longitrorsum minute plico-costatis, superne insigniter fascia angusta atro- 

 purpurea. cinctis, ultimo prope basin fasciato; aperlura parva, fusca; labio interno subproducto. 



Inhab. Straits of Malacca, in seventeen fathoms. 



As the new species here introduced are included in my Monograph of the 

 genus Terebra in Mr. Sowerby, Jim. Thesaurus Conchyliorum, I have not consi- 

 dered it desirable to repeat figures of them here. 



Nassa. Lamarck. 



148. Nassa candens, (Plate IX, fig. 6, 7). Testa ovata, ventricosa, acuminata, turrita, pallida, 

 fusco nebulosa ; anfractibus senis rotundatis, concinne cancellatis, ad angulos tuberculatis, infra 

 suturam tuberculorum seriebus duabus incrassatis ; labro integro ; apertura callo albo. 



Inhab. Marquesas Islands. 



Neatly cancellated, ovate, and acuminate, spire turreted, whorls with a twin 

 row of enlarged tubercles beneath the suture, which will materially assist to distin- 

 guish it; the outer lip is considerably dilated inferiorly, with the margin entire, 

 and in the older specimens thickened and even slightly everted. 



149. Nassa cremata (Plate IX, fig. 8,9). Testa ovata, acuminata subturrita, rufescente; 

 anfractibus septenis rotundatis, concinne cancellatis, interstitiis quadratis, pallide fasciatis ; labro 

 dentato, inferne sinuoso ; columella producta, antica. 



Inhab. 



This species differs from the preceding in being something less turreted, the 



