SUTEE, : ON MOLLUSCA FROM NEW ZEALAND. 31 



spreading as a thin callosity over the parietal wall. There is a distinct 

 umbilical chink. Diam. 1'3, height 18 mm. 



Hah. — Near the Snares Islands, in 50 fathoms (Capt. BoUons). 

 Dusky Sound, in 30 fathoms (R. Henry). Dredged off Otago Heads 

 (A. Hamilton). Type in my collection. 



26. EissoA (Setia) Stewaetiana, n.sp. PI. Ill, Fig. 30. 



Shell minute, ovate, rimate, smooth, and faintly shining. Sculpture 

 consisting of fine oblique growth-striee, crossed on the last whorl by 

 microscopic faint and distant spiral lines. Colour light horny ; dead 

 shells are whitish. Spire conical, a little higher than the aperture ; 

 outlines convex. Protoconch small, globose, of one and a half smooth 

 white and shining whorls. Whorls 4J, convex, the last large ; base 

 rounded. Suture much impressed. Apertnre oblique, oval, subangled 

 above. Peristome continuous, slightly thickened inside, sharp. Colu- 

 mella short, vertical, a little arcuate. A distinct umbilical chink is 

 present. Diara. 1-25, height 19 mm. 



Hah. — Port Pegasus, Stewart Island, in 18 fathoms (Capt. Bollons). 

 Type in my collection. 



27. RissoA (Setia) infecta, n.sp. PI. Ill, Fig. 31. 



Shell minute, oval, rimate, translucent, thin, polished. Sculpture : 

 a few faint spiral lines are sometimes present below the periphery on 

 the last whorl ; growth-lines very fine, oblique or nearly straight. 

 Colour light horny. Spire conical, a little higher than the aperture ; 

 outlines slightly convex. Protoconch small, globose, smooth. Whorls 

 4, convex, the last large in proportion ; base rounded. Suture im- 

 pressed, narrowly margined below. Aperture slightly oblique, oval, 

 angled above. Peristome not continuous, not thickened, thin and 

 sharp. Columella vertical, nearly straight ; inner lip slightly expanded 

 and forming a thin layer on the parietal wall. The umbilical chink is 

 distinct. Diam. 1-1, height V6 mm. 



Hah. — Lyall Bay, Cook Strait (Miss M. Mestayer). Near 

 Taumaki Island, west coast of the South Island, in 10 fathoms 

 (Capt. Bollons). Type in my collection. 



28. ScROBS Hedleyi, n.sp. PI. Ill, Fig. 32. 



Shell minute, oval, usually spirally sculptured, pinkish or white, 

 imperforate. Sculpture consisting of fine spiral lines, distant or close 

 together, with a keeled shoulder, and sometimes a cincture margining 

 the suture below ; the shoulder may be ornamented by a few spirals 

 only or by numerous fine spiral threads ; very often the sculpture is 

 becoming obsolete or may be absent altogether, the shoulder only 

 slightly angled. Colour uniformly pink, mostly yellowish-white near 

 the mouth, but sometimes with a light-coloured band below the suture 

 and the base whitish ; white specimens are also met with, on which 

 the spiral sculpture may be pink-coloured. Spire conic, with blunt 

 and rounded apex, a little higher than the aperture ; outlines convex. 

 Protoconch rather large, of one flatly convex, smooth whorl, the 

 nucleus large. Whorls 3, convex, the last shouldered ; base convex. 



