10 GASTEROPODA. 



Purplish brown ; inside brownish purple. Length, I'l ; breadth, '7 ; 

 angle of spire, 46. 



Stewart's Island. 



Considerably broader than the last, the transverse plications more 

 irregular, and the canal shorter. 



16. P. llneatUS, Quoy, Voy. Astrolabe, ii., p. 501 ; Pollia liuea, 

 Grcn/, Dieff. N.Z., \i.,p. 229, not F. lineatus, Reeve. Fusiform, smooth, 

 apex only ribbed ; whorls flattened, very finely spirally striated ; aper- 

 ture oval ; outer lip smooth ; canal short, slightly bent to the left. 

 Purple, spirally banded with reddish brown ; interior purplish brown. 

 Length, '86 ; breadth, '4 ; augla of spire, 40. 



Common. 



17. P. linea, Martyn; Buccinum linea, Martyn, Univ. Condi., pL 

 48 ; Fnsus linen, Desltfti/es, Anim. sans vert., ix , p. 476 ; Fusus line- 

 ahis, Reeve ; Pollia lineolata, Gray, Dieff. N.Z., ii., p. 230. Fusiform, 

 smooth, apex sometimes ribbed ; whorls flattened ; aperture oval ; 

 outer lip grooved ; canal short, slightly bent to the left. Purplish or 

 pale reddish brown, spirally banded with purplish black or reddish 

 brown Length, 1'4 ; breadth, "65 ; angle of spire, 48. 



Common. Chatham Islands. 



18. P. littorinoideS, Reeve. Small, fusiform, spire produced, 

 acute ; whorls rather distantly spirally striated, with several very fine 

 striae between; spire whorls transversely ribbed; aperture oval, outer 

 lip slightly grooved, with a thin margin ; canal short, nearly straight. 

 Purplish brown, or pale brown. Length, '7 ; breadth, "3 ; angle of 

 spire, 36. 



Common. 



19. P. dUOdecimuS, Gray, Dieff. N.Z., ii., p. 230. Small, 

 ovato-fusiform, transversely ribbed, and distantly spirally striated ; 

 spire acute, whorls seven, convex ; body whorl about half the length of 

 the shells, with twelve transverse rounded ribs ; aperture oval, canal 

 short, open. Pale 'brown or white. Length, '45 ; breadth, '22 ; angle 

 of spire, 37. 



Common. 



20. P. blcinctllS, sp. nov. Fusiform ; smooth ; slightly trans- 

 versely ribbed at the apex only ; whorls rather flattened, faintly trans- 

 versely striated ; aperture oval ; outer lip smooth ; canal very short, 

 bent slightly to the left. White, with a band of purple on the anterior 

 portion of the spire whorls extending to the sutures, and two similar 

 bands on the body \vhorl. Length, I'l ; breadth, '55 ; angle of spire, 

 37. 



Chatham Islands only. 



21. P. VlttatllS, Qxoy, l.c.,\\.,p. 404. Fusiform; whorls slightly 

 spirally grooved and transversely ribbed ; aperture oval ; outer lip 

 toothed ; canal very short, a callosity in the posterior angle of the 

 aperture. White, with a reddish brown baud on the anterior portion 

 of the spire whorls, extending to the sutures, and two similar bands 

 on the body whorl. Length, '5 ; breadth, - 32 ; angle of spire, 45. 



Omaha beach. 



