262 PEOCEEDINGS OP THE MALACOLOGICAL SOCIETY. 



expanded. Perforation deep, narrow, open, about one-fifteenth of the 

 greatest diameter. Diam. 4-5, height 3-2 mm. 



Hah. — New Zealand, exact locality not known. Collected by the 

 late Mr. C. Traill. 



The nearest species is L. Cheesemani, Sut., which, however, is not 

 polished, has the base not depressed in the centre, the perforation 

 nearly closed up, and the colour-markings are different. Type in my 

 collection. 



Laoma (Pheixgnathus) lieatula, n.sp. PL XI, Fig. 26. 



Shell very small, turbinate, perforate, corneous with radial brown 

 streaks, not shining, thin, periphery keeled. Sculpture consisting of 

 very fine, dense, oblique growth-striae and very distinct microscopic 

 spiral lines, which are finer and closer together on the protoconch. 

 Colour corneous, with rather regular, broad, radial streaks, sometimes 

 coalescing on the body-whorl; they are faint or absent on the base. 

 Spire conoidal, its outlines almost straight, height the same as that of 

 the aperture. Protoconch convex, of 14- turns. Whorls 5, regularly 

 increasing, lightlj'" convex ; periphery keeled, base rounded. Suture 

 impressed. Aperture lunate, oblique. Peristome thin and sharp, 

 strengthened inside by a thin callosity; outer lip sharply angled. 

 Columella short, vertical, almost straight; inner lip expanded. 

 Perforation moderate, about one-eighth of the greatest diameter, deep 

 and quite open. Diam. 4*2, height 3 mm. 



Hob. — New Zealand, exact locality unknown. Collected by the 

 late Mr. C. Traill. 



The rather wide and open perforation separates it from its near 

 congener L. Cheesemani, Sut. Type in my collection. 



Laoma (Phkixgnathus) Alfkedi, n.sp. PL XI, Pig. 27. 



Shell minute, depressed-globose, perforate, corneous, thin, pellucid, 

 polished. The sculpture on the post-nuclear whorls consists of micro- 

 scopic faint spiral lines, more distinct on the base ; growth-lines 

 sometimes rib-striate. Colour corneous ; at irregular intervals there 

 are radiate white lines on the last two whorls, produced by the narrow 

 callosity left of former peristomes. Spire conoidal, its height equal 

 to that of the aperture ; outlines lightly convex. Protoconch flatly 

 rounded, smooth. Whorls 5, slowly and regularly increasing, convex ; 

 periphery sub-angled, base flatly rounded. Suture impressed, faintly 

 margined. Aperture oblique, lunate. Peristome simple, straight, with 

 a conspicuous inner white callus ; outer lip descending rapidly and but 

 little arched. Columella short, subvertical, arcuate ; inner lip slightly 

 expanded. Perforation narrow, deep, open, about one-twelfth of the 

 greatest diameter. Diam. 2-5, height I "6 mm. 



Hab. — Birkenhead, near Auckland (A. Suter). 



This species stands nearest the imperforate L. lucida, Sut. It is 

 named after my son Alfred, who discovered it. Type in my collection. 



Laoma (Phrixgn'athus) fulgurata, n.sp. PL XI, Pig. 28. 

 Shell very small, depressed, almost imperforate, horny, with broad 

 streaks and zigzag lines of brown, not shining, thin and pellucid. 



