238 



PKOCEEDINGS OP THE MALACOLOGICAL SOCIETY. 



convex. Protoconch of 1|- smootli convex whorls, microscopically very 

 indistinctly spirally lirate. Whorls 4J, regularly increasing, convex, 

 periphery sharply rounded, base ilatly convex. Suture very distinct 

 and well impressed. Aperture oblique, lunate ; peristome sharp and 

 straight; columella oblique, a little concave, with a feeble callus. 

 Umbilical region not much impressed. Alt. 4 mm.; diarn. maj. 7, 

 min. 6-2 mm. 



Sab. — Poor Knights Islands (Mr. C. Cooper). 



This species stands nearest to F. dimorpha, Pfr., but is distinguished 

 from it by its much smaller size and the closer riblets. It gives me 

 much pleasure to unite the name of my friend Mr. Chas. Cooper, of 

 Auckland, with the species. Type in my collection. 



5. Flammulina (Allodiscus) tholoides, n.sp. PI. XXII, Fig. 8. 



Shell small, depressed turbinate, imperforate, costate, with brown 

 ziczac bands. Sculpture consists of sharp, almost straight, and sub- 

 equidistant radial riblets, 8 to 10 per millim., extending over the base, 

 interstices with very tine growth-lines ; no spiral sculpture. Colour 

 fulvous with light-brown ziczac bands. Epidermis thin, not shining. 

 Spire broadly dome-like, low. Protoconch of \^ smooth and convex 

 whorls. Whorls 5, slowly and regularly increasing, convex, but 

 slightly flattened above ; base convex. Suture well impressed. 

 Aperture a little oblique, lunar ; peristome thin and straight ; 

 columella short, concave, slightly callous, and deflexed over the 

 umbilical region, which is but little immersed. A thin callus on 

 the body-whorl unites the distant margins. Alt. 3-2 mm.; diam. maj. 

 4'5, min. 3'8 mm. 



Huh. — Cape Te Reinga (Mr. C. Cooper). I have also a specimen 

 from Whangaroa. 



The globular form and the distant, almost straight riblets distinguish 

 this species from the allied F. Tullia, Gray, F. venulata, Pfr., and 

 F. rustica, Suter. Type in my collection. 



6. Lagochilus Chiltoni, Suter, n.subsp. septenteionaxis. 

 PI. XXII, Fig. 9. 



Distinguished from the species by the following characters: — It is 

 considerably larger, the spiral striation is quite distinct, especially upon 

 the base, and the umbilicus is a little larger and open, not covered 

 over by the reflection of the inner lip. Alt. 4, diam. 3 mm. 

 A specimen from Cape Camel is 4 by 2-8 mm. 



Mab. — Cowes Bay, Waiheke Island; type (H. S.). Cape Camel, 

 west of North Cape (Mr. C. Cooper). 



The specimens from Cape Camel are slightly more slender and the 

 umbilical tract is angled in some examples. Type in my collection. 



7. Lagocuilus bicarinatus, n.sp. PI. XXII, Fig.. 10. 



Shell small, turbinate, umbilicate, base bicariuate. Sculpture 

 consists of line subequidistant and blunt incremental axial striae ; two 



