155 



truncate. The shell represented at fig. 20, seems to have 

 been regarded as Buccinum hecticum of Gmelin, and recently 

 figured as such by Potiez, but I do not regard it as other, and 

 that apparently not uncommon, than an abnormal develop- 

 ment of T. muscaria. The undeviating character of the 

 decoration on the latter is only to be rivalled by that of T. sub- 

 ulata, and whilst both these species are eminently alike in their 

 style of markings, they are as decidedly distinct from the 

 tenacity with which each adheres to that which is peculiarly 

 its own. Society Islands ; Feejee Islands. 



12. T. TiGBiNA. (pi. xlii. f. 30.) Gray, 1. c. p. 59. Buccinum 

 tigrinum, (bis.) Gmelin, No. 135. B. felinum, Dillwyn, v. ii. 

 Terebra felina, Sowerby, Tank. Cat. p. 76. 



Testa conico-subulata, acuminata, leevigata, alba, uniseria- 

 tim maculata ; anfractibus planulatis, superne linea impressa 

 divisis.inferne maculis rufis unicinctis, anfractu ultimo iteratis; 

 apertura ovali, effusa ; columella breviuscula, nuda. 



Shell conico-subulate, acuminate, smooth, white on the 

 inferior part of the whorl, with a single series of reddish-brown 

 spots ; whorls flat, distinctly girdled, smooth and polished, 

 the last fuller than usual, and with two rows of spots. Aper- 

 ture oval, effuse, without any canal. Columella rather short, 

 naked, and a little twisted. 



It would seem quite time that attention was drawn to some 

 of these long known shells, since they continue almost scarce 

 in collections, and we are not satisfied, as in the present case, 

 that their native country is correctly known. 



13. T. duplicata. (pi. xli. f. 1, 2, 3, 4.) Lamarck, 1. c. v. 

 vii. p. 286. Buccinum duplicatum, Linnctus, Gmelin, No. 

 136. Terebra Lamarkii, Kiener, p. 30, t. 9, f. 19. 



Testa subulata, turrita, polita, cinerea, rarius castanea vel 

 atro-fusca ; anfractibus planulatis, superne sulco divisis, lon- 

 gitudinaliter creberrime plicatis ; prope suturam fascia pal- 

 lida cincta, anfractu ultimo duplicata ; apertura intus fusca ; 

 columella contorta. 



Variat fascia maculis rufis transversis ornata. 



Shell subulate, turrited, polished, usually of an ash or 

 blueish gray, but sometimes fulvous, or even of a dark red 

 colour as in fig. 1 ; whorls divided by a groove and thickly 

 plicate longitudinally ; close to and above the suture is a faint 

 narrow band, which also appears on the back of the last 

 whorl. There is a variety in which this band is articulated 

 by reddish transverse spots, fig. 2, and which M. Kiener 



c 



