Horros.—On Rhachiglossate Mollusca. 229 
Whorls angled and spirally striated, with seven or eight longitudinal 
ribs in front of the angle, and tuberculated on the angle. 
The dentition and opereulum are figured in the Trans. N.Z. Institute, 
xv., pl. xiii., f. r. The operculum is also figured by Quoy, and the dentition 
by Troschel, but he makes it different ; probably he has mistaken the 
species. 
SIPHONALIA NODOSA, Martyn, Univ. Conch., Buccinum, pl. 5 (1784); 
Tryon, Man. Conch., iii., pl. 56, f. 877. Fusus raphanus, Lamarck, Anim. 
sans Vert. (1820); Reeve, Conch. Icon., £ 61. Buccinum raphanus, Quoy 
and Gaimard, Voy. Astrolabe, Zool. ii., p. 428, pl. 81, £. 5,6; Tryon, Man. 
Conch., iii., pl. 56, f. 376, 877. 
Hab. Auckland to Cook Straits. 
Whorls angled, with a row of fifteen or sixteen nodules on the angle, 
and often another row in front; canal short. 
The dentition and operculum are figured in the Trans. N.Z. Institute, 
xv., pl. xiii., f. e. 
Sub-fam. Pisamüne. —— 
Shell heavy ; canal short and wide; the outer lip thickened. Animal 
with the foot simple and eyes on the sides of the tentacles. 
Genus Pisania, Bivona. 
Animal with the siphon short. . Lateral teeth with three cusps ; central 
with three. Shell oblong or fusiform, smooth, or spirally striated. 
Operculum ovate, the nucleus apical. 
Pisania LINEATA, Martyn, Univ. Conch., Buccinum, pl. 48 (1784) ; Quoy 
and Gaimard, Voy. Astrolabe, Zool. ii., P- 501, pl. 34, f. 6-8; Gray, Figs. 
Moll. Anim., i., pl. 5, f. 5; Tryon, Man. Conch., iii., pl. 72, f. 229, 230; 
Reeve, Conch. Icon., Fusus, f. 81 [not Buccinum lineatum, Gml., nor 
Cantharus lineatus, Menke} . 
Hab. Auckland to Banks Peninsula. Auckland Islands. 
White, with distant narrow purple. spiral bands. Whorls 8, of which 
3 to 5 only are plicate. Lateral teeth with three nearly equal cusps. The 
dentition is figured in the Trans. N.Z. Institute, xv., pl. xiii., f.n. The 
operculum is also figured by Quoy. 
Var. PERTINAX, Martens, Sitzb. Berlin, 23 (1878). 
Hab. Auckland, Banks Peninsula, and the Auckland Islands. 
Longitudinal ribs extending over the fifth and sixth whorls. 
The dentition is not known. 
Var. traversi, Hutton, Cat. Marine Moll. of N.Z., p- 9 (1878). 
 Euthria lineata var. B., Man. N.Z. Mollusca. 
Hab. Cook Straits, Stewart Island, Chatham Islands. 
Longitudinal ribs extending over all the whorls. 
