T E R E B R A . 



Plate X. 



Species 38. (Fig. a, b, Mus. Cuming.) 

 Terebra Cerithina. Ter. testa cylindraceo-subulatd, 

 solidiusculd, albidd, cameolo varie punctata et strigatd, 

 anfractibus convexiusculis, superne superficialiter ml- 

 catis, primis dense plicato-liratis, Uris gradatim eva- 

 nidis ; aperturd parvd, columella recta, labiatd. 

 The Cerithium-like Terebra. Shell oylindrically su- 

 bulate, rather solid, whitish, variously stained and 

 streaked with carneliou-red, whorls rather convex, su- 

 perficially grooved round the upper part, the first 

 closely plicately ridged, ridges gradually fading away ; 

 aperture small, columella straight, lipped. 

 Kiener, Icon. Coq. vivantes, p. 33. pi. 11. f. 25. 

 Hab. Philippine and Society Islands (in coral sand, on the 

 reefs) ; Cuming. 

 The carnelion painting of this species, which is distin- 

 guished by a cylindrical form, appears in the interstices 

 between the ribs, puckered, as it were, into darker spots 

 below the sutures. 



Species 39. (Mus. Cuming.) 



Terebra affinis. Ter. testa conico-subulatd, albidd, 

 cameolo promiscue tessellato-maculatd, anfractibus de- 

 clivi-planatis, superne sulco divisis, longitudinaUter 

 creberrime planicostatis, costarum interstitiis pertusis ; 

 aperturd pared, columella vix contortd. 

 The allied Terebra. Shell conically subulate, whitish, 

 promiscuously tessellately blotched with carnelion- 

 red, whorls slopingly flattened, divided round the up- 

 per part by a groove, longitudinally very closely flatly 

 ribbed, interstices between the ribs pricked ; aperture 

 small, columella slightly twisted. 

 Gray, Pro. Zool. Soc. 1834, p. GO. 



Terebra striata, Quoy (not of Basterot). 

 Terebra eburuea, Hinds. 

 Hab. Tahiti (in sand at low water) ; Philippine Islands (in 

 mud, at a depth of from six to twelve fathoms) ; Cum- 

 ing. Feejee and Seychelle Islands ; Hinds. 

 Smaller specimens of this species, which are not un- 

 common, are less conically subulate in form, more cylin- 

 drical, but the detail of sculpture, a more or less crowded 

 deposit of flattened ribs, pricked in the interstices, is un- 

 varying. 



culatd, plerinnque intense cinereo-purpureo supra et 

 infra anguste albo-zonatd, :onis rufu-fusco remote ma- 

 culatis, anfractibus couve.eis, superne sulco divisis, ad 

 marginem plicato-creualis, delude decussatim liratis, 

 Uris ad decitssationem conspicue albigranatis ; colu- 

 mella contorto-reciirvd. 



The rough Terebra. Shell subulately turreted, sharp, 

 sometimes whitish, faintly tinged and blotched with 

 reddish-fawn, generally deep ash-purple, narrowly 

 white-zoned above and below, the upper zones being 

 distantly spotted with red-brown, whorls convex, di- 

 vided round the upper part by a groove, plicately 

 crenated at the margin, then decussately ridged, the 

 ridges being conspicuously white-grained at the point 

 of crossing; columella twistedly recurved. 



Hinds, Pro. Zool. Soc. 1813, p. 154. 

 Terebra. Petiveriana, Deshayes. 



Hab. Panama, Monte Christi, St. Elena, West Colombia 

 (in sandy mud, at depths of from six to fourteen fa- 

 thoms) ; Cuming, Bridges. 



In the pale-coloured variety of this species the ridges 

 are more widely decussated than in the purple-ash variety. 

 In the latter, which is the most characteristic and the most 

 common, sometimes the transverse ridges are the stronger, 

 sometimes the longitudinal. The last-named state of the 

 species is M. Deshayes' T. Petiveriana. 



Species 40. (Fig. a, b, Mus. Cuming.) 

 Terebra aspera. Ter. testa subulato-turritd, acuta, in- 

 terdtim albidd, rufescente-spadiceo pallide tinctd et ma- 



Species 41. (Fig. a, b, Mus. Cuming.) 



Terebra larv.eformis. Ter. testa elongalo-cglindraced, 

 subturritd, alba vel rosaceo-albd, interdum brunned, an- 

 fractibus convexis, longitudinaUter plicato-cosfatis, cos- 

 tis arcualis, superne sidco valido divisis, interstitiis 

 tranaversim minute liiieari-iucisis ; aperturd parvd, 

 columella breviusculd, parum contortd. 



The larva-shaped Terebra. Shell elougately cylin- 

 drical, somewhat turreted, white or pink-white, some- 

 times brown, whorls convex, longitudinally plicately 

 ribbed, ribs arched, divided at the upper part by a 

 strong groove, interstices between the ribs transversely 

 minutely linearly engraved ; aperture small, columella 

 rather short, but little twisted. 



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



Hab. St. Elena and Monte Christi, West Colombia (in 

 sandy mud, at depths of from six to fifteen fathoms) ; 

 Cuming. 



Peculiarly characterized by its oylindrically elongated 

 larva-like form. 



March, 1860. 



