66 Zoological Society. 



Hab. Marquesas ; in seven fathoms. 



Cab. Belcher. 



Perhaps more nearly resembling T. plicata than any other species, 

 from which, with a little care, the description will suffice to distin- 

 guish it. The specimens were collected at the Marquesas group of 

 islands, which scarcely offer any particular novelty in any depart- 

 ment of natural history ; and the greatest exception will be found 

 among Terebra, of which it has a few peculiar species, and also some 

 interesting varieties of other well-known kinds. Indeed, though the 

 group is by no means the metropolis of the genus, the species would 

 seem to exist here under some peculiar circumstances. 



Terebra columellaris. Ter. testd elongatd, subcylindraced, tur- 

 rito-subulatd, aurantiacd albo nebulosd ; anfractibus subrotundatis, 

 longitrorsum undate plico-costatis, superrie lined impressd cinctis ; 

 interstitiis rufis, striatis ; anfractu ultimo breviusculo, rotundato, 

 albo fasciato . Axis 19 lin. 



Hab. ? 



Cab. Cuming. 



Remarkable from its great similarity to T. undulata, which is itself 

 a peculiar species. The grounds of distinction are its decidedly 

 cylindrical shape, different distribution of the colour, and its short, 

 abrupt, rounded and banded last whorl. 



Terebra nitiua. Ter. testd obeso-subulatd, acuminatd, pallide 

 plumbed, politd ; anfractibus subplanulatis , recte plico-costatis, su- 

 perrie interstitiis lined punctatd cinctis, ultimo parvo subattenuato, 

 unicolore , plicis evanidis ; labio interno producto ; labro antice sub- 

 sinuoso. Axis 10 lin. 

 Hab. Marquesas ; in seven fathoms, sandy mud. 

 Cab. Belcher. 



An excellent diagnostic character exists in this species, in the cir- 

 cumstance that the girdling line which traverses the upper part of 

 each whorl does not cross the ribs, but is confined to the interstices. 



Terebra varicosa. Ter. testd elongate conico-subulatd, acumi- 

 natd, nitidd ; anfractibus subplanulatis, plico-costatis, superrie cin- 

 gulo tuberculato contractato cinctis ; costis subdistantibus albidis, 

 interstitiis striatis fuscis ; anfractu ultimo breviusculo, rotundato, 

 albo fasciato ; columelld contortd. Axis 11 lin. 



Hab. Gulf of Papagayo, west coast of Central America ; in twenty- 

 three fathoms, mud. 



Cab. Belcher. 



Terebra laurina. Ter. testd elongate subulatd, acuminatd, Icevi- 

 gatd, politd, olivaced ; anfractibus planulatis, plicis tenuibus sinu- 

 osis, capillaribus, infra evanidis, superrie lined impressd obsoletd 

 cinctis, ultimo unicolore, lavigato ; aperturd fused ; columelld 

 lavi, subtruncatd. Axis 32 lin. 



Hab. Western Africa ; in sandy mud : Rev. W. V. Hennah. 



Cab. Cuming. 



The impressed line is always faint, and sometimes not at all visible. 



