Murdoch and Sutek. — Iiesults of Dredging. 287 



19. Pleurotoma (Leucosyrinx) eremita, n. sp. Plate XXII. 



figs. 18, 19. 



Shell small, fusiform, fragile, with shouldered whorls, the 

 body-whorl but slightly shorter than the spire, and a rather 

 short open canal. The sculpture consists of longitudinal and 

 spiral threads and riblets, the former inclined slightly backward ; 

 they number about fifteen on the penultimate whorl and are 

 obsolete above the angle, absent upon the greater part of the 

 last whorl. The spirals consist of five minute threads on the 

 slope above the angle ; beneath the latter there are four much 

 stronger riblets, forming gemmules at the intersections of the 

 longitudinals ; the last whorl with about twenty-three spirals, 

 those upon the base and neck more widely spaced, but equally 

 slender as those on the shoulder. Colour light-cream. Spire 

 turriculate - conical, with a blunt apex. Protoconch slightly 

 bulbose, with about two smooth whorls, nucleus globular. 

 Whorls 5, angled at the periphery, straight above, slightly 

 convex below ; base convex, then contracted and ending in a 

 short distally rounded beak. Suture deep. Aperture pyri- 

 form, broadly angled above, ending in a rather short almost 

 straight canal, slightly turned to the left. Outer lip imper- 

 fect, convex above, contracted near the base ; it is evident 

 from the growth-lines that the sinus is broad, rounded, and 

 moderately deep, extending almost from the suture to the keel. 

 Inner lip forming a thin and narrow callosity on the almost 

 straight columella, which is slightly twisted at the base. Alti- 

 tude, 5 - 8 mm. ; diameter, 2 - 42 mm. 



Type in the Colonial Museum, Wellington. 



Obs. Of this species there is but a single and not fully adult 

 example, a dead shell, which appears to be allied to P. ischna, 

 Watson, which was obtained in 700 fathoms north-east from 

 New Zealand. Our species is smaller, less slender, with fewer 

 whorls, and has much more numerous and stronger spiral riblets, 

 especially round the periphery of the whorls. The situation of 

 the sinus seems to be the same in both species. 



20. Ancilla mucronta, Sowerby. 

 Spec. Conch., part i, p. 8, figs. 47, 48, 1830. 



Two dead shells with a very distinct mucronate apex. 



21. Ancilla bicolor, Gray. 

 Jukes' Voy. " Fly," vol. ii, p. 357, pi. i, fig. 4, 1847. 



A fair number of young specimens, only one of them alive. 



22. Fulguraria (Alcithoe) gracilis, Swainson. 

 Exotic Conch., pi. xlii, 1821. 



One very good shell was obtained ; altitude, 65 mm. 



