sdier: on mollusca from neav Zealand. 255 



Hal. — L'Esperance or French Rock, Kermadec Islands ; type 

 (Captain J. Bollons). Bay of Islands (J. C. Anderson). Type in my 

 collection. 



Terebra tristis, Desh., n.subsp. crassicostata. 



Distinguished from the species by the following characters : the 

 shell is much smaller, the axial costae are stouter, broadly rounded, 

 of the same width as the interstices ; fine spiral lirse are also present. 

 Colour yellowish-white, a light- brown band below the suture, and 

 a white band below the periphery arising from the suture ; base 

 fulvous. Diam. 3-5, height 10 mm. 



Hah. — Lyall Bay (Miss Mestayer). Type in my collection. 



Terebra flexicostata, n.sp. PI. XI, Fig. 8. 



Shell subulate, axially flexuously plicate, shining, brown, with 

 a pale band below the suture. Sculpture consisting of irregularly 

 spaced, flexuous, flatly rounded axial plications, obsolete on the 

 body- whorl, the interstices with fine growth-lines ; indistinct, fine, 

 microscopic, spiral strife are present. Colour fulvous or flamed with 

 fulvous and white, a light-brown or white band below the suture, no 

 peripheral band on the body-whorl. Spire high, angle about 20°. 

 Protoconch smooth, conical. Whorls about 10, first slowly, then 

 more rapidly increasing, very flatly convex ; base rounded, somewhat 

 contracted above the basal rib. Suture impressed. Aperture sub- 

 vertical, narrowly oval, with a short and rather narrow canal, 

 narrowly notched below. Outer lip broadly convex, sharp. Columella 

 subvertical, lightly convex, nai'rowly drawn out to a point at the base 

 of the canal, somewhat excavated on joining the flat parietal Avail 

 above; inner lip thin and narrow. Operculum unknown. Diam. 5, 

 height 18"o mm. 



Hah. — Cape Maria van Diemen (Captain J. Bollons) ; Port Waikato 

 (Webster). 



The T. venosa, Hinds, reported as having been found at Cape Maria 

 van Diemen and Port Waikato by Webster (Trans. N.Z. Inst., xxxvii, 

 p. 280), is no doubt this species; it is allied to the Australian 

 T. Bra%ieri, Angas, but the whorls are flatter, the riblets straighter, 

 and the spire is more slowly tapering. Type in my collection. 



TORNATINA BIPLICATA, n.Sp. PI. XI, Fig. 9. 



Shell small, cylindrical, mucronate, thin, smooth, with a sharp 

 columellar plait and a broadly rounded fold below it. Sculpture : 

 the perfectly smooth surface shows only indistinct growth-lines. 

 Colour white. Spire slightly depressed, the nucleus raised above the 

 level of the body-whorl. Protoconch papillary, rather small, tilted. 

 Whorls 4, sharply angled above, the last sub-cylindrical, slightly 

 descending ; base rounded. Suture channelled. Aperture vertical, 

 very narrow above, much widened below. Outer lip thin, sharp, 

 considerably arched forward at the middle, convex above and at base. 

 Columella with a very oblique, narrow, and sharp plait at the junction 

 with the parietal wall, twisted below, forming a very distinct, broadly 



