Mangilia.] GASTROPODA. 497 



points of intersection, continuous over the whorls and on the base to 

 the siphonal fasciole ; the interstices slightly broader than the ribs. 

 Colour yellowish-white, with indications of 2 brown spiral bands 

 above and below the periphery. Spire produced, conic, turreted, 

 nearly 1| times the height of the aperture with canal. Protoconch 

 with the nucleus distinctly oblique, flat above the carina. Whorls 

 6iy, the upper ones distinctly shouldered, the lower ones convex, 

 base contracted. Suture inconspicuous. Aperture oblique, pyriform, 

 broadly angled above, produced below into a short oblique trun- 

 cated canal. Outer lip convex, strengthened on the outside by the 

 last axial rib, smooth inside, contracted below, the sinus inconspicuous, 

 shallow. Columella vertical, smooth, obliquely truncated below, con- 

 cave at the junction with the parietal wall. Inner lip thin and narrow, 

 drawn out to a fine point on reaching the left margin of the canal. 



Diameter, 3 mm. ; height, 7-2 mm. 



Animal unknown. 



Type in my collection. 



Hob. Near the Snares, in 50 fathoms (Captain Bollons). 



Remarks. In sculpture this species somewhat resembles M. 

 dictyota, Hutton, but this has not the tilted and carinated protoconch 

 and coarse spiral sculpture of the base. M. epentroma, Murdoch, has 

 a similar protoconch. 



3. Mangilia dictyota, Hutton, 1885. Plate 21, fig. 22. 



Clathurella dictyota, Hutt., T.N.Z.I., xvii, 1884 (1885), 316, pi. 18, f. 8. 

 Mangilia dictyota, Suter, T.N.Z.I., xxxi, 72. Clathurella (?) dictyota, 

 Hutt., Plioc. M., 53, pi. 7, f. 37. 



Shell small, elongate - fusiform, turriculate, axially costate and 

 spirally lirate, whitish or light brown. Sculpture consisting of narrow, 

 rounded, straight axial ribs, about 13 on a whorl, extending from 

 suture to suture, continuous over the whorls, extending over the 

 base of the body-whorl, the interstices wider than the ribs, crossed 

 by more or less conspicuous spiral threads, 1 on the carina of the 

 shoulder and another half-way down more prominent than the others, 

 a few hair-like threads upon the shoulder, and 2 or 3 below it ; body- 

 whorl generally with 3 or 4 more prominent spiral lirfe, the interstices 

 with 1 to 3 fine spiral threads. Sometimes the surface is distinctly 

 cancellated. Colour whitish or light brown ; sometimes a brown 

 band appears on the base of the penultimate whorl, and is continued 

 on the body-whorl ; inner lip mostly dark violet or brown, especially 

 the lower part of it. Spire acuminate, turriculate, about 1| times 

 the height of the aperture. Protoconch with a small, papillate, smooth, 

 slightly tilted nucleus, followed by a convex and spirally lirate second 

 volution ; sometimes the nucleus is also spirally striated. Whorls 6, 

 more or less distinctly shouldered, flatly convex and contracted to- 

 wards the suture below ; base contracted. Suture undulating, not 



