Realia.] GASTROPODA. 197 



4. Realia turriculata, L. Pfeiffer, 1855. Plate 38, fig. 33. 



Realm turriculata, Pfeiffer, P.Z.S., 1854 (1855), 304; Heclley and Suter, 

 P.L.S. N.S.W. (2), vii. 022 : Suter, J. de Conch., xli, 226 ; Kobelt, Jahrb. 

 Nassau. Ver. f. Nat., lix. 51. . 



Shell subperforated, slender, turreted, rather solid. Sculpture con- 

 sisting of close axial strife, the later whorls with distant fine mem- 

 branaceous folds, much closer together on approaching the aperture. 

 Colour blackish-brown with a lighter basal band, or with alternating 

 dark-brown and yellowish-white streaks, the base brown. Epidermis 

 thin, but little shining. Spire elongate, obtuse at the apex, more 

 than twice the height of the aperture. Protoconch globose, of 2 

 smooth and convex whorls. Whorls 7-7, moderately convex, the 

 last indistinctly angled ; base flatly convex, keel round the um- 

 bilicus absent or but slightly indicated. Suture impressed, slightly 

 plicate. Aperture vertical, angularly oval. Peristome continuous, 

 double, the inner one continuous, a little elevated, the outer one 

 narrowly expanded, inflexed. Perforation a mere chink, or closed. 

 Operculum typical. 



Diameter, 3-6 mm. ; height, 9mm. (4mm. by 8-5 mm. to 5mm. 

 by 11 mm.). 



Dentition. Hutton, T.N.Z.I., xvi, 174, pi. 11, f. H. 



Type in the British Museum. 



Hab. Kakepuku (Hochstetter) : Papakura ; Whangarei ; Kamo ; 

 Te Reinga (C. Cooper) ; Kaihu, Hokianga ; Waiwera (H. S.). 



Subsp. lepida, Suter, 1904. 



Realia turriculata, PL-., snb.sp. lepida, Suter. P. Mai. S., vi, 157. 



A most graceful small subspecies, of a much lighter colour and 

 smaller dimensions than the typical form. The chestnut zigzag bands 

 are narrower and less numerous, the spire is more elongate and more 

 acute, its outlines not convex, but straight. The whorl;, 7|-8 in 

 number, are more convex, and the suture is deeper. 



Shells of a cream tint and the zigzag markings devoid of colour 

 also occur (mut. albina, Sut. 1892). 



Type in my collection. 



Hab. Forty-mile Bush, near Mauriceville, type (H. S.) ; Seventy- 

 mile Bush, near Ormondville (Chadwick). 



Genus 2. OMPHALOTROPIS, L. Pfeiffer, 1851. 



Omphalotropis, Pfeiffer, Zeitschr. Malak., v, No. 8, 1851, 176. Type: 

 0. hieroglyphica, Fer. 



Shell umbilicated or perforated, turreted to globosely turreted, 

 with a more or less prominent keel around the umbilicus ; aperture 

 oval ; peristome discontinuous, straight or expanded ; operculum thin, 

 horny, paucispiral. 



Distribution. Islands of the Indian and Pacific Ocean. 



