388 GASTROPODA. \Pectinibraitchia. 



They are oval, compressed, pointed at both ends, and fastened by a 

 short stalk. The orange variety I collected at Island Bay, Cook 

 Strait. The Buccinum catarracta, Chm., is considered by Tryon to 

 be a mere colour variety of this species, and, as far as I know. Chem- 

 nitz gives New Zealand as the habitat; Krauss (Siidafrik. Moll., 119). 

 on the other hand, claims it for the coast of Natal, but I suspect that 

 he wrongly identified his specimens. 

 Fossil in the Pliocene. 



7. Cominella nassoides, Eeeve, 1846. Plate 45, fig. *.). 



Buccinum nassoides. Reeve, Conch. Icon., iii. pi. 3, f. 12. C'otnin/l/n 

 nassoides, Reeve : Kobelt, Jahrb. d. Deutsch. Mai. Ges., 1878, 234 

 Button, M.N.Z.M., 53; Tryon, Man. Conch. (1), iii, 206, pi. 81. f. 442 

 Button, T.N.Z.I., xvi, 232. Buccinum (Cominella) zealandicum. Reeve 

 Button, C.M.M., 14; not of Reeve. Cominella nodicincta, v. Martens. 

 Sitzber. N.F. Berlin, 1878, 23; Tryon, Man. Conch. (1). iii, 206, pi. 81, 

 f. 443. Buct-inuni reneris, Filhol, Compt. Rend., xci, 1880, 1094; Miss. 

 I.C., 525. 



Shell moderately large, fusiform, spirally lirate and axially cos- 

 tate, solid, yellowish-brown. Sculpture consisting of distant rounded 

 cinguli, the much broader interspaces with numerous dense fine spiral 

 threads ; axial sculpture formed by rounded ribs, nodulous on cross- 

 ing the cinguli, about 18 on the penultimate whorl ; the costae extend 

 over all whorls, protoconch excepted, but are getting effaced on reach- 

 ing the base ; growth-lines flexuous, more or less distinct, sometimes 

 decussating the fine spiral threads. Colour greyish or yellowish- 

 brown, aperture yellowish-white within. Spire conic, very often 

 turreted, its height equal to that of the aperture; outlines straight. 

 Protoconch minute, globular, of 2 smooth whorls. Whorls 8, the last 

 high, about two-thirds of the height of the shell, mostly shouldered, 

 the shoulder grooved between the two cinguli, flatly convex below the 

 shoulder ; base slightly contracted. Suture well marked, undulating. 

 Aperture oblique, oval, channelled above, with a short and widely 

 open canal below, its base deeply notched. Outer lip somewhat ex- 

 panded, sharp, thickened and distantly dentate within, a strongly 

 raised tooth bounding the canal. Columella subvertical. smooth 

 except a fasciolar ridge, strong, and broadly rounded. Inner lip 

 broad, extending over the parietal wall, which bears a low plait below 

 the suture, narrowed to a point below, which forms the inner margin 

 of the canal. Fasciole distinct, carinated. Operculum horny, oval, 

 dark brown, nucleus apical. 



Diameter, 19 mm. ; height, 36 mm. : angle of spire, 45-50. Dia- 

 meter, 25 mm. ; height, 49 mm. 



Animal unknown. 



Type in the British Museum. 



Hab. Foveaux Strait and Stewart Island, 18 fathoms ; Preserva- 

 tion Inlet ; Chatham Islands ; Auckland and Campbell Islands. 



