GASTEROPODA 185 



nuclear sculpture of indistinct spiral bands marked off by irregularly punctate inter- 

 stitial grooves. There are about nine spiral bands, indistinct above, the last being situ- 

 ated at about half way across the base. Umbilicus about one-eleventh the maximum 

 width of the shell and around its edge strongly crenulated by axial growth lines. 

 Aperture circular. Peristome continuous, slightly thickened. 



Height 0-7 mm., diameter 0-9 mm. (Holotype). 



Habitat: Off Waikuku Beach, near North Cape, St. 930, 29 m. 



Cirsonella simplex, n.sp. (Plate L, fig. 12). 



Shell minute, turbinate, solidly built, white and glossy, and with a narrow umbilical 

 cavity almost filled with callus. Whorls three, including a small smooth flattened proto- 

 conch of one whorl. Spire flat on top, about one-third height of aperture. Whorls 

 convex but with a slightly flattened shoulder. Surface smooth and polished ; there is no 

 sculpture. Aperture circular, peristome continuous. Outer lip thin at edge but slightly 

 thickened within. Inner lip much thickened and spread into the umbilical cavity, which 

 is filled except for a crescentic bounding groove on the outer side. 



Height 1-4 mm.; diameter 1-75 mm. (Holotype). 



Habitat: Off Three Kings Islands, St. 933, 260 m. 



This species resembles the Tasmanian genotype. 



Genus Starkeyna, Iredale, 1930 

 Type (original designation) : Teinostoma starkeyae, Hedley 

 Starkeyna maoria, n.sp. (Plate XLIX, figs 10, 11). 



Shell small, solid, turbinate, white, glossy ; smooth above and spirally striated below. 

 Spire depressed, conoidal, about half the height of aperture. Whorls three, including 

 a low blunt convex protoconch of one smooth whorl. The upper surface of the shell is 

 smooth almost to the periphery, but below this it is closely spirally striate, the striations 

 numbering about thirty-eight and extending right to the funicle. The umbilical cavity 

 is completely filled by the funicle, which is united to the columella as a callous pad. 

 Aperture circular. Peristome thick, continuous. 



Height 1-3 mm.; major diameter 1-7 mm. (Holotype). 



Habitat: Off Three Kings Islands, St. 933, 260 m. 



This is the first record of this Australian genus from New Zealand waters. 



Genus Lissotesta, Iredale, 19 15 



Type (original designation) : Cyclostrema micra, Ten. Woods 



Lissotesta caelata, n.sp. (Plate LI, fig. 5). 



Shell minute, globular, moderately solid, white, sculptured with strong rounded 

 spiral ridges. Whorls 3 J, including a globular smooth protoconch of i\ whorls. Spire 

 about two-thirds height of aperture ; whorls evenly and strongly convex. Spire whorls 



