Haminea.] GASTROPODA. 539 



whorl. Colour pale yellowish-brown, pure- white when the epidermis 

 has been lost. Epidermis very thin, glossy, easily rubbed off. Vertex 

 very slightly and narrowly impressed, imperforate, the slightly 

 thickened lip reflexed at the middle. Body-whorl flattened above, 

 convex at periphery and base. Aperture as high as the shell, wide 

 below, narrowed above. Outer lip regularly convex, produced above. 

 Basal lip broadly rounded, very thin and sharp. Columella deeply 

 concave, with a slight fold at the junction with the convex parietal 

 wall. I inter Up reflexed over the pillar and the parietal wall, thin, 

 white, polished. 



Diameter, 19 mm. ; height, 22 mm. (type). Diameter, 19 mm. ; 

 height, 24 mm. (specimen from Pelorus Sound). Diameter. 13mm.; 

 height, 16 mm. (specimen from Auckland). 



Animal undescribed. 



Type in the British Museum. 



Hob. Bay of Islands ; Hauraki Gulf ; Pelorus Sound : Nelson. 

 On Zoster a beds, not uncommon. 



Fam. PHILINID^S, Fischer. 



Animal with the body oblong, the head-shield having no tentacular 

 processes, provided with sessile eyes or without them ; foot truncated 

 or rounded behind ; parapodial lobes very large and conspicuous, 

 more or less folded over the back. Radula lacking central teeth ; 

 laterals large, marginals few or none. Formula varying from 

 6+1 + 0+1 + 6 to 1 + 0+1. 



Shell capable of containing but a small part of the body, entirely 

 internal, covered by the reflexed and united mantle ; whitish, fragile, 

 consisting of 1 or 2 whorls ; spire sunken or absent ; aperture ex- 

 tremely large, the outer lip often produced in a lobe or point above. 



Genus 1. PHILINE, Ascanius, 1772. 



Philine, Ascanius, Vetensk. Ak. Handl. Stockh., 1772, 329. Type : 

 P. aperta, L. Lobaria, Miiller, 1776. Bullcea, Lamarck, 1801. Utricu- 

 lopsis, Sars., 1870. Ossiana, Monterosato, 1884. Hermania, Monts., 

 1884. + Laona, A. Adams, 1865, + Johania, Monts., 1884, + Megisto- 

 stoma, Gabb, 1864. 



Animal much too large to be included in the shell. Head-disc 

 oblong, large, without eyes ; parapodial lobes fleshy and erect ; foot 

 obliquely truncated behind, the shell and mantle projecting beyond it. 

 Mantle reflexed and completely united over the shell. Gizzard con- 

 taining 3 lozenge-shaped plates, with the inner face convex, outer 

 face concave and sometimes pierced by 2 foramina. Sometimes 

 gizzard-plates are rudimentary or absent. Radula without central 

 teeth, the laterals large, erect, claw-shaped ; marginals to 6, small, 

 narrow, and curved acicular when present. 



Shell ovate or squarish, thin and fragile, smooth, spirally striate or 

 punctate, or latticed, translucent, pale-coloured, consisting of few 



