376 GASTROPODA. [Pectiiiihranchm- 



Ilab. North and South Islands, but more common in the North ; 

 Chatham, Antipodes, Auckland, and Campbell Islands. Brought To 

 England by Captain Cook. 



Fossil in the Miocene and Pliocene. 



Subsp. pertinax, von Martens. 1878. Plate 46, fig. 12. 



Kutlirifi liiit-ata, var. pertinax, v. Mts., Sitzher. Xaturf. Fr. Berlin. 1878, 23. 

 E. lineata, var. A, Hutton, M.X.Z.M., 51. Pisania lineata, var. pertinax. 

 v. Mts. : Hutton, T.N.Z.I., xvi, 22!). Euthria lineata, var. pertinax, 

 v. Mts.. Man. Conch. (1), iii, 151. 



Shell more ventricose, axial cost a- extending over the antepen- 

 ultimate whorl ; colour-bands less numerous. 



Height. 68 mm. 



Type in the Naturhist. Museum, Berlin. 



fffib. Foveaux Strait ; Banks Peninsula : Hauraki Gulf. The 

 type is from the Auckland Islands. 



Subsp. Traversi, Hutton, 1873. Plate 46. tig. 13. 



Ftisus Trari'rxi. Hutt., C.M.M., fl. Neptitma Traversi, Hutt., -T. de Conch., 

 1878. 14; M.N.Z.M., 51. Euthria li/tm/n, var. B, I.e., 51. Pifsania 

 liiiiiilii. var. Trairrsi, Hutt., T. N.Z.I., xvi, 220. Kiphotialia Trurersi, 

 Hutt., Man. Conch. (1), iii, 137. 



Shell somewhat more ventricose, axial ribs extending over all the 

 whorls. Operculum as in the species. 



Diameter. 15 mm. ; height, 28 mm. (type). Specimen from Fo- 

 veaux Strait, 20 mm. by 38 mm. 



Type in the Dominion Museum, Wellington. 



flab. Chatham Islands (type) : Stewart Island ; Cook Strait. 



Fossil in the Pliocene. 



3. Euthria littorinoides, Reeve, 1846. Plate 44, fig. 21. 



R-uc.cinu.ni littorinoides, Hcc\ c, Conch. Icon., iii, pi. 12, f. 94. Fusu-s (Euthria) 

 littorinoides. Reeve : v. Martens, Grit. List, 19. Euthria littorinoides, 

 Reeve : Hutton, -1. de Conch., 1878, 16; M.N.Z.M., 52. E. lineata, var. 

 Hcevc: Tryon, Man. Conch. (1), iii, 151, pi. 72, f. 231. 

 littorinoides, Reeve: Hutton, T.N.Z. 1.. xvi, 230. Euthria 

 Mart., var. C, Hutton, M.N.Z.M., 51. 



fusiform, rather small, solid, spirally narrowly banded with 

 purple. Sculpture consisting of close and narrow spiral ridges, the 

 slightly broader interstices with 1 or 2 fine spiral threads ; sometimes 

 the spiral ridges are absent, and the whole shell is only verv finely 

 spirally striate ; the two or three whorls succeeding the protoconch are 

 axially costate. Colour greyish or yellowish-white, with narrow dark- 

 purple spiral bands, 5 to 7 on the penultimate whorl ; aperture light . 

 brown or purple within ; the outer lip sometimes with brown lira\ and 

 occasionally with a few brown patches. Spire elevated conic, of about 

 the same height as the aperture with the canal : outlines faintly 

 convex. Prntticinn-li very small, of '2 convex and smooth whorls. 



