SUTER: NEW ZEALAND LAND MOLLUSCA. 30 
‘rounded; whorls 5, slowly and regularly increasing, rounded, the 
last not descending in front; suture impressed; whorls radiately 
costate, the coste sharp and elevated, directed forwards, arcuate on 
‘the upper surface, sinuate on the periphery and base, about ten per 
; 
‘millimetre, interstices minutely decussate. Protoconch having fine, 
narrow cost, obtuse. Aperture lunate, oblique; peristome regularly 
‘arched, straight, acute, the outer lip tapering, columella lip short, 
arcuate, not reflexed; margins convergent ; umbilicus broad, nearly 
one-fourth of the greatest diameter, showing all the whorls; base 
rounded. Diam. max. 4, min. 3°5; alt. 2mm. 
Type in my collection. 
Hab.—Tarukenga near Rotorua, North Island (Capt. T. Broun). 
Named in honour of Mr. B. Rosevear, Fulham, London. 
This species is nearest to 4. Sterkiana, Sut., but may at once be 
distinguished from it by the coste being wider apart. 
5. Enpoponta (CuHaropa) Trrrranerensts, n.sp. Pl. LIV, Figs. 8-10. 
Shell small, discoidal, umbilicated, thin, horny, without colour 
markings, semi-transparent, dull; longitudinally costate, the cost not 
much raised, slightly directed backwards, sinuated at the periphery ; 
interstices with fine lines of growth, 9-10 costelle per millimetre. 
Whorls 5, the first three gradually increasing, the last attaining 
relatively a considerable development, taking up about one-third of the 
maximum diameter; suture well impressed. Protoconch smooth, spire 
flat, periphery rounded. Aperture rotundly lunate, oblique ; peristome 
straight, acute, columella lip slightly callous and reflexed; margins 
converging. Umbilicus about one-third of the greatest diameter, 
showing all the whorls. Base rounded. Diam. maj. 3°75, min. 3°25; 
alt. 1°75 mm. 
Type in my collection. 
ffab.—Nikau-bush, Titirangi, near Auckland (H. 8.). 
This shell is closely allied to 4. anguiculus, Reeve, var. montiwaga, 
Sut., but differs from it in the greater diameter of the four first 
whorls, the broader last whorl, etc. 
6. Laoma ELEGANS, n.sp. Pl. IV, Figs. 11, 12. 
Shell minute, conoidal, perforate, horny, without colour markings, 
Somewhat glossy, thin, transparent, surface radiately costate, the very 
| distinct costelle straight, directed backwards, 15 per millimetre. Spire 
dome-shaped; periphery slightly keeled; whorls 5, flatly rounded, 
gradually and slowly increasing; suture impressed. Protoconch 
| 
smooth, rather large. Aperture transverse, semicircular, with six long 
slender lamelle, two on the penultimate whorl and four on the base, 
the latter lying far back, and only showing through the trans- 
parent shell on the exterior as white lines. Peristome straight, 
acute, basal lip broadly rounded, columella lip slightly callous, 
j 
Teflexed ; margins only very slightly approximate. Umbilicus narrow, 
but pervious, not covered by the columellar reflection. Base smooth 
PP to the periphery; whitish, flatly rounded. Diam. 2, alt. 1°5 mm. 
Type in my collection. 
