741 GASTROPODA. [Pvlmonata. 



forward above. Spire low conoidal. its height equal to that of the 

 aperture ; outlines lightly convex. Protoconch flattish, of 1J smooth 

 turns. Whorls 5, regularly increasing, rather convex ; periphery 

 keeled, base rounded. Suture deep, narrowly margined above. Aper- 

 ture somewhat oblique, sublunate. Peristome simple, thin, the upper 

 lip arched forward. Outer lip angled, with a thin white callus inside. 

 Columella very short, arcuate. Inner lip callous, expanded. P< r- 

 foration minute, almost concealed in the adult. 



Diameter Maj., 3-5 mm. ; min., 3-4 mm. : height, 2-8 mm. 



Formula of radula 38+ 1 + 38 ; the teeth normal. 



Type in the K.K. Hofmuseum, Vienna. 



Hab. North Island : Kakepuku. type (Hochstetter) ; Auckland 

 (Gillies) ; Mount Wellington lava-fields ; Hillyer's Creek (Musson) ; 

 Thames (Adams) ; Hunua Range (Major Broun) ; Ohaupo (Musson) ; 

 Heretaunga ; Toko, near Stratford (R. Murdoch) ; Waimarama (A. 

 Hamilton) ; Tarukenga ; Mount Pirongia : Wade ; Horokiwi. 



8. Laoma elaiodes, Webster, 1904. Plate 29, fig. 10. 



Laoma (Phrixgnathua) elaiodes, Wclist.. P. Mai. S.. vi, 1904, UKi, f. 5, 6 

 in text. 



Shell turbiuate, olive-green, shining, subperf orate, finely striate. 

 Sculpture : Protoconch concentrically striate ; the succeeding whorls 

 irregularly radiately finely striate and substriate, about 10 striations 

 per millimetre, substriatious variable in number and extent, both 

 directed backwards ; the whole shell concentrically wave-striated. 

 Colour olive-green. Protoconch 1^ whorls. Whorls 4J, rounded, peri- 

 phery and base rounded. Suture deep. Lip simple, margins slightly 

 converging. Columella vertical, reflexed above, slightly covering the 

 umbilicus, which is narrow, pervious. (Webster.) 



Diameter, 3 rnm. ; height, 2 mm. 



The generative system (Plate 1, fig. 20) is very similar to that of 

 other members of the genus, and the characteristic features scarcely 

 differ from those in Flammulina and Endodonta. The penis (p.) is 

 comparatively large, with the distal portion folded upon itself ; the 

 retractor muscle (r.m.) is inserted at the apex. The vas deferens (v.d.) 

 also separates from the apex ; it is a very slender tube, and forms a 

 loop round the distal portion of the penis. The receptaculum seminis 

 (r.s.) is a narrow tube with a globose termination. The large pouch- 

 like sacculation (s.c.) of the uterus appears to be a very constant 

 feature in all three genera ; the prostate and female ducts (o.v.d.) 

 branch from its lower, anterior portion, and the former is partly con- 

 cealed in the lower, concave surface. Other organs scarcely call for 

 notice ; the right ocular retractor passes between the branches of 

 the genital system. Albumen-gland (alb.g.). (R. Murdoch.) 



Type in Mr. Webster's collection. 



Hab.- Waiuku ; scarce. 



I have not seen this species. 



