GASTEROPODA 215 



angle sinuous, regularly produced into vertically compressed nodules. On the spire whorls 

 there are five spiral cords with equal interspaces and on the base nine cords plus seven on 

 the neck of the canal. There are nine nodulous expansions of the peripheral carina on the 

 penultimate whorl. Interspaces crossed by very fine axial growth threads. Aperture 

 long and narrow, sides parallel, angled above and weakly notched below. Outer lip 

 thickened within, bearing four apertural tubercles, the uppermost of which is by far the 

 strongest. Inner lip as a well defined callus. Colour pale buff, sparingly streaked with 

 irregular patches of light brown. 



Height 6-2 mm. ; diameter 2-6 mm. (Holotype). 



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



Liratilia elegantula, n.sp. (Plate LVI, fig. 1). 



Shell small thin, elongate, fusiform. Spire tall, i\ times height of aperture. Whorls 

 five, including a typical conical smooth protoconch of two whorls. Outline of spire 

 whorls lightly convex, except for a slight concavity immediately below the suture. Body 

 whorl narrow, slightly flattened medially, concave below suture and also towards 

 fasciole. Sculpture consisting of five rather deeply incised lines leaving broad flat spiral 

 bands which number nine on the spire whorls and twenty-one on the body whorl and 

 base, plus nine on the fasciole. The upper four spirals on the concave portion below the 

 suture are narrower than the rest. Aperture long and narrow, sides parallel, weakly 

 notched below. Outer lip thin, not much thickened within, and without tubercles. 

 Colour pure white, sparsely marked with square light brown patches, situated on the 

 fourth and fifth spirals from the suture. 



Height 4-6 mm. ; diameter 1-75 mm. (Holotype). 



Habitat: Off Three Kings Islands, St. 934, 92 m. 



Family MARGINELLIDAE 



Genus Marginella, Lamarck, 1799 



Type (by monotypy) : Voluta glabella, Linn. 



Subgenus Glabella, Swainson, 1840 



Type (by monotypy): Voluta faba, Linn. 



Marginella (Glabella) aupouria, n.sp. (Plate LV, fig. 5). 



Shell small, very solid, white, glossy, ovate-biconic. Spire very low and broadly 

 conic, inflated over upper portion of body whorl and tapering rapidly towards base. 

 Height of spire only about one-tenth height of aperture. Whorls three, including 

 broadly rounded low smooth protoconch of one whorl. Aperture long and narrow, with 

 parallel sides, deeply channelled above and broadly but shallowly notched below. 

 Outer lip straight, thickened by a heavy smooth varix. Columella with four equidistant 

 oblique plaits. 



Height 4-3 mm. ; diameter 3-05 mm. (Holotype). 

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



