i 94 DISCOVERY REPORTS 



Allied to compacta, Powell, 1927, but with an additional keel on the spire whorls and 

 differing also in the height. 



Merelina crispulatus, n.sp. (Plate LII, fig. 7). 



Shell small, fairly solid, white ; sculptured with prominent flange-like oblique axials 

 and weak intercostal and basal spiral threads. Whorls five, including typical protoconch 

 of 1 1 globose whorls, sculptured with seven spiral threads. Spire tall, about if height of 

 aperture. The axials, which have the form of very prominent oblique flanges, number 

 twelve on the body whorl. The wide interspaces are sculptured with rounded rather weak 

 spiral cords, three on early whorls, four on penultimate and a total of seven on the body 

 whorl, three of which are on the base. The axials fade out on the base just at the uppermost 

 of the three spirals. The interstitial spiral cords do not cross the axials but they render the 

 profile of the latter faintly angulate. Aperture small, oblique-oval, very heavily variced 

 externally. Whorls strongly convex, high-shouldered and deeply indented at sutures. 



Height 1-65 mm.; diameter 0-9 mm. (Holotype). 



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



Apparently somewhat allied to the preceding species but differing in having fewer 

 and more widely spaced axials which are developed greatly in excess of the spirals. 



Merelina cochleata, n.sp. (Plate LII, fig. 6). 



Shell small, fairly solid, white ; sculptured with a few widely spaced prominent flange- 

 like oblique axials and very weak intercostal and basal spiral threads. Whorls five, in- 

 cluding typical protoconch of 1^ globose whorls, sculptured with seven fine spiral 

 threads. Spire tall, about if height of aperture. The wide flange-like axials number 

 nine on the body whorl inclusive of the labial varix. The wide interspaces are sculptured 

 with two faint spiral threads and a third which margins the suture above and on the 

 body whorl extends from the top of the labial varix and encircles the base, upon which 

 there are two further spiral threads. The axials fade out just before reaching the base, 

 and the spirals do not cross the axial flanges. Aperture small, oblique-oval, very heavily 

 variced externally. Whorls strongly convex, high-shouldered and deeply indented at 

 sutures. 



Height i-6 mm. ; diameter 0-87 mm. 



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



Closely allied to the preceding species but differing in being more slender and in 

 having fewer axial flanges and spiral cords. 



Merelina crassissima, n.sp. (Plate LII, fig. 9). 



Shell small, squat, very thick and solid, white ; sculptured with rather distant heavy 

 axials and moderately strong spiral cords. Whorls four, including globose protoconch of 

 1 J whorls, sculptured with five strong spiral threads. Spire about i\ times height of 

 aperture. The axials, which are broad and rounded, number eleven on the body whorl, 

 and they do not extend far over the base. Spire whorls with a broad sloping shoulder 

 and two spiral cords which surmount the axials and render them somewhat nodulous. 



