GASTROPODA. 437 



crossed and reticulated by equidistant tine and straight axial riblets, 

 the spirals slightly nodulous at the points of intersection ; between 

 the riblets fine growth-lines. Colour cream-white or light brown. 

 Spire conic, lightly scalar, somewhat higher than the aperture. Proto- 

 conch smooth, mamillary, of 2 convex whorls. Whorls 6|, regularly 

 increasing, angled by the more elevated median spiral rib on the 

 spire-whorls, the interstices between the spirals slightly concave ; 

 base somewhat contracted. Suture distinct, margined above by a 

 fine thread. Aperture narrowly and elongately rhomboidal, angled 

 above, with a short and broad canal below, its base slightly notched. 

 Outer lip thickened, somewhat straight in the middle, faintly sinuated 

 above, with 2 to 4 elongated denticles inside. Columella vertical, 

 slightly turned to the left and twisted below, with 2 low and broad 

 folds. Inner lip narrow and very thin ; parietal wall with a rounded 

 and low callus below the suture. Op&rculum unknown. 



Diameter, 2-75 mm. ; height. 6-5 mm. 



Animal unknown. 



Type in my collection. 



Hab. Lyall Bay, type (A. Hamilton) ; Titahi Bay (Miss Mestayer) ; 

 Foveaux Strait. 



2. Anachis subabnormis, Suter, 1899. Plate 19. fig. 22. 



Clathurella subabnormis, Sut., T.N.Z.I.. xxxi, 1898 (1899), 74, pi. 3, f. 4 ; 

 Index, 71. Mitromorpha subabnonuis, Sut. : Murdoch, T.N.Z.I., xxxvii, 

 1904 (1905), 230. Columbella saxatilis, Murdoch, i.e., 225, pi. 8, f. 15. 



Shell small, ovate-elongate, solid, sculptured with fine spiral and 

 stronger axial riblets, brown. Sculpture : Axial ribs 16 to 18 on a 

 whorl, low and rounded, equal to or a little less than the breadth of 

 the interspaces, becoming obsolete upon the base and usually on 

 approaching the outer lip ; spiral riblets undulating, small but well 

 marked, wider than the grooves, 6 or 7 on the penultimate and 16 

 to 17 on the last whorl ; on crossing the costee they have occasionally 

 a somewhat granular appearance. Colour light or dark brown, usually 

 a pale band around the periphery. Spire elevated conic, somewhat 

 higher than the aperture with canal.; outlines almost straight. Proto- 

 conch of 2 smooth polished and convex whorls, papillate. Whorls 6, 

 regularly increasing, moderately convex ; base very little contracted. 

 Suture impressed. Aperture somewhat narrow, vertical, lightly chan- 

 nelled above, produced below into a widely open and very short 

 canal, its base slightly notched. Outer lip vertical, thickened, with a 

 few denticles inside near the middle. Columella vertical, straight, 

 somewhat twisted below, with 2 or 3 small folds or tubercles. Inner 

 lip narrow and thin, extending over the straight parietal wall. Oper- 

 culuin unknown. 



Diameter, 2-7 mm. ; height, 5-9 mm. (type). 



Animal unknown. 



