130 GASTROPODA. [Aspidobranchia. 



Subgen. 2. BANKIVIA, Beck, 1848. 

 Bankivia, Beck: Krauss, Die Siidafrik. Moll., 105. Type : B. varians, Beck. 



Shell imperforate, elongated, narrow, conical, thin, but slightly 

 pearly ; aperture small, about one-third the length of shell ; columella 

 slightly twisted, subtruncated toward the base. 



9. Cantharidus fasciatus, Menke, 1830. Plate 38, fig. 17. 



Phasianella fasciata, Mke., Synops. Meth. Moll., 141. Cantharidus fasciatus, 

 Mke., Man. Conch. (1), xi, 139, pi. 40, f. 28-33; Suter, P. Mai. S., ii, 

 274. Phasianella fulminata, Mke., and P. undatella, Mke., I.e., 141. 

 Bankivia varians, Beck, in Krauss, I.e., 105, pi. 6. f. 7. B. purpurascens. 

 A. Ad.. P.Z.S., 1851 (1853), 171. B. manor, A. Ad., I.e., 171. B. nitida, 

 A. Ad., I.e., 172. 



Shell elongated, turreted, imperforate, thin, polished, and shining. 

 Sculpture (under a lens) very dense, fine spiral striations ; base with 

 a few concentric, separated, impressed lines. Colour white, creamy, 

 or pink, with spiral bands of pink, purplish - red, or purplish- 

 brown, or narrow oblique zigzag stripes of pinkish-brown, usually 

 with a narrow subsutural band of dark or pinkish. Epidermis very 

 thin, shining. Spire elevated, slender ; apex acute, dark. Proto- 

 conch small, conical, of 2 convex smooth whorls. Whorls about 9, 

 very slightly convex, a little impressed below the suture, the last 

 rounded ; base convex. Suture linear, superficial, margined below. 

 Aperture ovate, smooth and whitish within. Outer lip thin, acute. 

 Columella sinuous, arcuate above, obliquely truncate below. Inner 

 lip narrowly reflexed and spreading as a thin callus over the parietal 

 wall. 



Diameter, 8 mm. ; height, 19 mm. 



Animal unknown. 



Type (?). 



Hob. Near Waiwera, Hauraki Gulf ; west coast of the North 

 Island ; Cook Strait : in 3 to 4 fathoms, on sand ; not common. 

 Australia. 



Sect. 1. LEIOPYRGA, H. and A. Adams, 1863. 

 Leiopyrga, H. & A. Ad., A.M.N.H. (3), xi, 19. Type : L. picturata, H. & A. Ad. 



Shell perforate, elongated, narrow, somewhat turreted, thin, the 

 whorls convex, rounded, or carinated ; aperture oval, small ; columella 

 arcuate, not truncated at base. 



10. Cantharidus picturatus, H. and A. Adams, 1863. Plate 38, 

 fig. 18. 



Leiopyrga picturata, H. & A. Ad., A.M.N.H. (3), xi, 19. Cantharidus pictura- 

 tus, H. & A. Ad., Man. Conch. (1), xi, 140, pi. 45, f. 46-48; Suter, 

 P. Mai. S., ii, 274. 



Shell turreted, slender, perforate, thin, shining. Sculpture con- 

 sisting of a spiral ridge on the periphery of the whorls and around the 



