TEREBRA. 



Plate VIII. 



Species 28. (Mus. Cuming.) 



Terebra pr.elonga. Ter. testa perelongato-turritd, gra- 

 cilUmd,fulvo-aurantid, anfraetibus a ngustis, plano-con- 

 cavis, decussatim grami/atis, superne biseriatim i/odit- 

 losis, serie supremo, majore ; aperturd pared, columella 

 brevi, contorto-reeurvd. 



The very long Terebra. Shell very elongately tur- 

 reted, very slender, fulvous-orange, whorls narrow, 

 flatly concave, decussately granuled, encircled with 

 two rows of nodules at the upper part, the upper row 

 the larger; aperture small, columella short, twistedly 

 recurved. 



Deshayes, Pro. Zool. Soc. 1859, p. 315. 



Hab. Port Curtis, Australia ; Stuchbury. 



This species and T. triseriata, to which it is very closely 

 allied, are the most slenderly elongated forms of the genus, 

 each being composed of from thirty-five to forty narrow 

 whorls, sculptured throughout with a multiplicity of no- 

 dules in spiral necklaces of beads. 



Species 29. (Mus. Cuming.) 



Terebra Cumingii. Ter. testa ehngato-turritd, gracili, 

 semipellucido-albd, anfraclibus concavo-plauatis, un di- 

 gue exquisite granoso-cancellatis, gemmis clathratis su- 

 perne biseriatim cinctis; aperturd parvd, columella 

 gracili, contorto-reeurvd. 



Cuming's Terebra. Shell elongately turreted, slender, 

 semitransparent-white, whorls coucavely flattened, ex- 

 quisitely granosely cancellated throughout, encircled 

 round the upper part with two rows of latticed beads ; 

 aperture small, columella slender, twistedly recurved. 



Deshayes, Pro. Zool. Soc. 1859, p. 311. 



Hab. China. 



Although a solid shell, T. Cumingii has a delicate semi- 

 transparent-white aspect, the surface being most elabo- 

 rately latticed throughout with fine beads. 



Species 30. (Fig. a, b, Mus. Cuming.) 



Terebra pretiosa. Ter. testa elongato-turritd, fulves- 

 cente-albd. maculis aurantio-fuscis promiscuis fasciatd, 



anfraetibus convexo-planatis, concentrice dense arcuato- 

 liratis, interstitiis clathratis, superne sulcatis, versus 

 aperturam bisulcatis, sulcis liris arcualis interrupts ; 

 columella contorto-reeurvd . 



The precious Terebra. Shell elongately turreted, ful- 

 vous-white, banded with promiscuous blotches of 

 orange-brown, whorls convexly flattened, concentri- 

 cally closely arcuately ridged, the interstices being 

 latticed, grooved, towards the aperture double grooved 

 round the upper part, the grooves being interrupted 

 by the arched ridges; columella twistedly recurved. 



Reeve, Pro. Zool. Soc. 1842, p. 200. 



Hab. China. 



This very elegant species is distinguished by a peculiar 

 sculpturing of concentric shrivelled ridges, the interstices 

 between which are latticed. The growth of the shell con- 

 tinues with the most symmetrical regularity, and there is 

 little or no variation of the colouring. 



Species 31. (Mus. Cuming.) 



Terebra myuros. Ter. testa perelongato-turritd, earn- 

 lescente-albd, maculis amplis rvfo-fuscis tessellatd, an- 

 fractibus planatis, slriis conferiim scabroso-elathratis, 

 superne biseriatim granuloso-liratis, liris versus aper- 

 turam evanidis, granulis plus minus obsoletis ; aper- 

 turd parvd, columella contorto-reeurvd. 



The rat's-tail Terebra. Shell very elongately tur- 

 reted, bluish-white, tessellated with large blotches of 

 red-brown, whorls flattened, closely scabrously lat- 

 ticed with stria;, encircled round the upper part with 

 two rows of granuled ridges, ridges blended towards 

 the aperture, with the granules more or less obsolete ; 

 aperture small, columella twistedly recurved. 



Lamarck, Anim. sans vert. vol. x. p. 247. 

 Terebra scabrella, Lamarck. 

 Terebra commaculata, Pfeiffer. 



Hab. Moluccas. New Ireland. 



There is no doubt of Lamarck's T. myuros and scabrella 

 being varieties of one and the same species. AVhat Gme- 

 lin's Buccinum commaculatum was, like many other of his 

 very ambiguous species, it is impossible to say. 



March. 1860. 



