TEREBKA.— Plate XIV. 



groove, conspicuously corded and tubercularly grained 

 at the margin, beneath the groove smooth, shining, 

 then grained in longitudinal rows ; aperture arcuately 

 oblong, columella twistedly recurved and ridged. 



Hinds, Pro. Zool. Soc. 1843, p. 154. Thes. Couch, 

 pi. 43. f. 48. 



Hab. Panama (in sandy mud, at a depth of from four to 

 eleven fathoms) ; Cuming. San Bias, California ; 

 Hinds. 



Well distinguished by its spiral collar of tubercles, and 

 smoothness beneath, followed by delicate rows of granules 

 extending longitudinally to the base. 



Species 62. (Mus. Cuming.) 



Terebra bifrons. Ter. testa subulatd, spadiceo -fused, 

 obscure rufescente-fasciatd, anfractibus convexis, indi- 

 visis, granulis pallidis quadriseriatim cinctis, anfractu 

 ultimo multigranato ; aperturd ovatd, fauce castaneo 

 tinctd, columella brevi, recta. 



The two-faced Tebebra. Shell subulate, fawn-brown, 

 obscurely rufous-banded, whorls convex, undivided, 

 encircled with four rows of pale granules, last whorl 

 many-grained; aperture ovate, chestnut-tinged within, 

 columella short, straight. 



Hinds, Pro. Zool. Soc. 1843, p. 155. 



Hab. Japan (in sandy mud in deep water) ; Dr. Siebold. 



A rather dull fawn-brown shell, faintly stained with a 

 reddish band, and encircled with granules, which appear 

 in pale relief. In place of the usual groove encircling the 

 upper part of the whorls, there is only the merest con- 

 cavity. 



Species 63. (Mus. Cuming.) 



Terebra Sowerbyana. Ter. testa subulato-turritd, 

 versus basin subvenlricosd, eburned, cameo pallide fas- 

 data, anfractibus declivi-convexis, supeme sulco im- 

 presso late divisis, long iludina 'liter undato-plieatis, pli- 

 cis distantibus, interstitiis s?dcis tenuibus linearibus 

 clathratis ; aperturd arcuato-oblongd, columella pro- 

 ductd, va/de contorld. 



Sowerby's Terebra. Shell subulately turreted, rather 

 ventricose towards the base, ivory-white, encircled 

 with pale flesh tint, whorls slopingly convex, broadly 

 divided round the upper part by an impressed groove, 

 longitudinally wave-plicated, plaits distant, interstices 

 latticed with fine linear grooves ; aperture arcuately 

 oblong, columella produced, very much twisted. 



Deshayes, Journ. de Conch. 1857. 



Hab. Mouth of the Gambia, West Africa (in sandy mud 

 at low water) ; Mr. Deal. 



A delicate Cerithium-like shell, chiefly distinguished by 

 the widely separated arrangement of the longitudinal 

 plaits. 



