TEREBR A. 



Plate XII. 



Species 46. (Mus. Deshayes.) 



Terebra histrio. Ter. testa subobeso-subtdatd, albo- 

 hitescente, maculis longitudihalibus easianeo-purpureis 

 undatis pictd, juxta suturam Uneis purpureo-rufis Jim- 

 briatd, maculis in anfractu ultimo ad pervpheriam in- 

 terrupts, anfractibus subplanulatis, sulco divisis, ad 

 marginem crenato-granatis, grants estate producenti- 

 bus ; aperturd parvd, columella brevi, abrupte valde 

 contain'. 



The harlequin Terebra. Shell rather stoutly subu- 

 late, whitish yellow, painted with longitudinal waved 

 chestnut-purple spots, next the suture filled with 

 purple-red lines, spots in the last whorl interrupted 

 at the periphery, whorls rather flat, divided by a 

 groove, crenately grained at the margin, grains 

 lengthening with age; aperture small, columella 

 short, abruptly much twisted. 



Deshayes, Pro. Zool. Soc. 1859, p. 303. 



Hub. ? 



This species, from the collection of M. Deshayes, and 



of which Mr. Cuming also possesses an example, belongs 



• to the same type as T. corrugata, from which it differs in 



being more obtuse and smooth, and in being composed 



of much fewer whorls. 



Species 47. (Fig. a, b, Mus. Cuming.) 



Terebra straminea. Ter. testa acuminato-turritd, gra- 

 cili, fulvescente ant livido-cinered, anfractibus spira- 

 liter tenuiliraiis, interstitiis subexcavatis, sulco superne 

 divisis, supra el partim infra sulcum dense oblique 

 crenatis ; aperturd subangustd, columella reflexd, ad 

 basin subcon torto-recur vd. 



The straw-coloured Terebra. Shell acuminately 

 turreted, sleuder, fulvous or livid-ash, whorls spirally 

 finely ridged, interstices rather excavated, divided 

 round the upper part by a groove, densely obliquely 

 crenated above the groove and partially below it; 

 aperture rather narrow, columella reflected, some- 

 what twistedly recurved at the base. 



Gray, Pro. Zool. Soc. 1834, p. 02. 

 Terebra circinata, Deshayes. 

 Terebra acuta, Deshayes. 



Ilab. Philippine Islands (dredged from a depth of from 

 twenty-five to thirty fathoms), Cuming; and China. 



This species varies from the fulvous straw-colour of the 

 original type to a deep livid-ash, and the specimens of the 

 latter colour are smaller. M. Deshayes' T. circinata i= 

 the livid variety, represented at Fig. 47 a, and his T. cir- 

 cinata is a variety in which the encircling collar of oblique 

 crenations is partially obsolete. The shell is sometimes 

 faintly brown-banded, and s the crenations have frequently 

 a milky appearance. 



Species 48. (Mus. Cuming.) 



Terebra funiculata. Ter. testa acute turritd, fut- 

 vescente-albd, coslis pallidioribus, anfractibus sph 

 costatis, interstitiis subprqfunde excavatis, pertusis, 

 casta supremd latiore, sulco divisa; aperturd 

 columella breci, contort a. 



The corded Terebra. Shell sharply turreted, fulvous- 

 white, ribs paler, whorls spirally ribbed, interstices 

 rather deeply excavated, pricked, uppermost rib 

 broader, divided by a groove; aperture small, colu- 

 mella short, twisted. 



Hinds, Pro. Zool. Soc. 1S43, p. 153. 

 Terebra ArcMmedis, Deshayes. 



Hab. Marquesas Islands. 



Chiefly characterized by its screw-like succession of 

 strong encircling ribs, the interstices between which are 

 finely pricked. The ribs are frequently smooth and shin- 

 iug, standing out in conspicuous relief. 



Species 49. (Mus. Cuming.) 



Terebra Formosa. Ter. teslii subulato-turritd, s 



alba, maculis quadrat is rufo-easianeis biserialim pictd, 

 quorum superioribus multo minoribus, anfractibus pla- 

 rwlatis, indivisis, oblique longitudinaliter corrugato- 

 plicatis, plicis biseriatim granatis, anfractu ultimo et 

 penultimo convexioribus, plicis evanidis; apertur 

 angustd, columella erassd, contorto-i 



The beautiful Terebra. Shell subulately turreted. 

 solid, white, painted with two rows of square reddish- 

 chestnut spots, of which the upper ones are much 

 the smaller, whorls Hat, undivided, obliquely longi- 

 tudinally wrinkle-plaited, plaits marked by two rows 

 of grains, last and penultimate whorls more convex, 

 the plaits faded away; aperture rather narrow, colu- 

 mella thick, twistedly recurved. 



Mav, 1860. 



