GASTEROPODA 191 



Haurakia aupouria, n.sp. (Plate LII, fig. 4). 



Shell small, ovate-conic, white, moderately strong, shouldered, sculptured with blunt 

 axial costae and broad indistinct spiral cords. Spire gradate, i| times height of aperture. 

 Whorls five, including a smooth dome-shaped protoconch of i| whorls. Upper third of 

 each whorl occupied by a distinct flattened shoulder, lower two-thirds sculptured with 

 strong vertical bluntly rounded axial costae, seventeen on the last whorl. Suture nar- 

 rowly canaliculate, margined above and below by distinct spiral cords, the uppermost 

 of which marks the lower extremity of the axials. On the body whorl and base there are 

 five fairly distinct flattened spiral cords, the two margining the suture plus three below, 

 leaving a broad unsculptured zone around the columella. In addition there are six very 

 indistinct spiral cords showing between the interstices of the axials on the last whorl. 

 Aperture ovate, slightly oblique. Peristome continuous across parietal wall, streng- 

 thened along the outer lip by a rounded external varix. 



Height 2-05 mm.; diameter 1-25 mm. (Holotype). 



Habitat: Off Three Kings Islands, St. 933, 260 m. 



This species stands nearer to the littoral H. hamiltoni than to the deeper water and 

 southern H. huttoni. 



Haurakia duplicata, n.sp. (Plate LII, fig. 2). 



Shell small, solid, elongate-conic, white. Whorls five, including a blunt dome-shaped 

 protoconch of two smooth whorls. Spire whorls subangled at the middle, base convex, 

 smooth, imperforate. The sculpture consists of a supra-sutural rounded cord which 

 persists right over the last whorl, and strong regular blunt fold-like axials which do not 

 cross the sutural cord. These axials number fourteen on the penultimate and twelve on 

 the last whorl. Spire about if height of aperture. Aperture obliquely ovate. Peristome 

 continuous, duplicated on the outside by a heavy rounded varix which leaves the thin 

 slightly dilated inner edge of the outer lip as a projecting rim. 



Height 2-85 mm.; diameter 17 mm. (Holotype). 



Habitat: Off Three Kings Islands, St. 933, 260 m. 



This and the following species differ from all known species of Haurakia in the ex- 

 tremely heavy duplicated peristome. 



Haurakia duplicata exuta, n.subsp. (Plate LII, fig. 3). 



The subspecies is almost identical with duplicata in shape, the spire whorls differing 

 only in being almost without trace of the subangle, and in having no axial sculpture. 

 Aperture, duplicated peristome, supra-sutural cord, and other characters are as in the 

 typical species. 



Height 2-65 mm.; diameter i-6 mm. (Holotype). 



Habitat: Off Three Kings Islands, St. 933, 260 m. 



