Cantharidus.] GASTROPODA. 127 



spirally striate, 5 on the penultimate whorl, the interstices narrow, 

 obliquely lamellose-striate ; base with 4 cinguli. Colour uniformly 

 greenish or yellowish-white, without any markings, or the first whorls 

 red or reddish-green, the remainder whitish, ornamented with rosy 

 oblique longitudinal streaks. Spire usually high and conical, but 

 sometimes a little less than the height of the aperture. Protoconch 

 conic, acute, spirally striate. Whorls 8 to 9, somewhat convex, the 

 last subangled ; base convex. Suture but slightly impressed. Aper- 

 ture subtrapezoidal, reddish iridescent and sulcate within. Outer lip 

 sharp, edged by a white opaque band. Columella nearly vertical, 

 with a slight swelling below the middle. Inner lip consisting of a 

 narrow white callus, which unites the extremities of the peristome 

 over the body-whorl. 



Diameter, 16 mm. ; height, 22 mm. Diameter, 20 mm. ; height. 

 32 mm. Diameter, 21 mm. ; height, 26 mm. 



Dentition and Animal. Hutton, T. N.Z.I., xv, 124, pi. 14, f. 0. 



Hob. From Ngunguru Harbour, in the north, to Banks Peninsula ; 

 Kermadec Islands : on rocks and on floating seaweeds (Macrocystis). 

 Brought to England by Captain Cook. 



Remark. Having examined a large series of specimens, I came to 

 the conclusion that T. texturatus, Gould, cannot be separated as a 

 variety. All well-preserved, not beach-worn, specimens show the 

 secondary sculpture of fine spiral striae on the cinguli. 



Fossil in the Pliocene. 



^. Cantharidus rufozona, A. Adams, 1853. Plate 35, fig. 16. 



Cantharidus rufozona, A. Ad., P.Z.S., 1851 (1853), 170; Man. Conch. (1), 

 xi, 150 (copy of Adams's description) ; Suter. P. Mai. S., ii, 273. %. in 

 text. 



Shell globosely conoidal, small, rather thin, imperforate. Sculp- 

 ture consisting of distant rounded spiral cinguli, 5 on the penultimate, 

 13 on the body whorl, interstices smooth. Colour white or cinereous, 

 the spiral riblets rufous or pinkish-brown. Spire conoidal, apex 

 acute, sides but slightly convex. Protoconch small, conic, whorls 

 about 2, convex and spirally lirate, mostly Eroded. Whorls about 5, 

 the last rather large, rounded at periphery ; base convex. Suture 

 impressed. Aperture subquadrangular, iridescent and lirate within. 

 Outer lip slightly indented, sharp, articulated with pinkish-brown, 

 with an inner opaque white band. Columella vertical, white, with a 

 slight tubercle in the middle, often obsolete. Inner lip with a small 

 expansion beyond the columella, but perfectly filling up the perforation ; 

 a thin white callus on the parietal wall. 



Diameter, 5 mm. ; height, 6 mm. 



Dentition unknown. 



Type in the British Museum. 



Hob. Spirit Bay, not uncommon (C. Cooper) ; Hauraki Gulf 

 (C. Spencer) ; Lyall Bay (H. S.). 



