126 Transactions. 



only lightly marked. Sculpture : Fine flexuous gro^Yth-lines. Aperture 

 full size of the whorl. Animal unknown. Operculum unknown. 



Material. — Tlie holotype in my collection. One paratype in the 

 Dominion Museum; one paratype in the Australian Museum. 



Remarks. — The holotype is a younger but more nearly perfect speci- 

 men than the paratype in the Dominion Museum; unfortunately, the 

 other paratype is even more imperfect. There are two Recent species 

 known from the American coast, in deep water — Discohelix iiobilis 

 Yerrill and D. lamellifera Dall — which were only mentioned in the Trans. 

 Wagner Free Inst. Sci. Philadelphia, 1890, Vol. 3, page 331, but I 

 could not find them figured. The fossil D. retifera. Dall is slightly 

 similar in general shape, but has no keels. There seems to be also a 

 Mediterranean species, but I could not find a figure of it. 



Atlanta lesueuri (d'Orbigny). Plate XII, fig. 7. 



Described in "The Zoology of the Bonite " (pi. xx, fig. 8); also 

 recorded in the " Challenger "" Rep., Zool. (vol. 23, 1888, p. 40). Mr. 

 Hedley kindly identified this species, giving the references, and adding 

 that it was an interesting record for New Zealand. The genus had been 

 previously known to occur in New Zealand, but it had not been possible 

 to identify the species. (Man. N.Z. Mollusca, p. 352, 1914.) 



Columbarium suteri E. A. Smith. Plate XII, fig. 8. Fam. Fusinae. 



A single example of this species was obtained by the " Terra Nova " 

 Expedition, 1910, at Station 134, near the North Cape, New Zealand, 

 and was described by Mr. E. A. Smith in " The British Antarctic 

 ('Terra Nova') Expedition." 1910 (vol. 2, Moll. No. iv, 87, pi. 1, 

 fig. 30). The type is in the British Museum. As this volume is not 

 readily accessible, I append Mr. E. A. Smith's account of it. Tlie 

 specimen figured on Plate XII, fig. 8, was found in the dredging off 

 the Big King, and is in mj collection : it is about the same size as the 

 type. 



" Shell slenderly fusiform, with angular coronate whorls, dirty- 

 whitish, with pale-l)rown spots between the short spines which adorn the 

 middle of the whorls; periostracum pale-straw-coloured, deciduous; the 

 2 apical whorls large, smooth, obtuse at the top, the rest sloping above 

 the middle, which is prominently carinate, the keel being produced 

 into short spines or acute tubercles, 10 on the last whorl. Below the 

 keel the volutions are contracted to the suture, which is oblique; above 

 the carina, on the last and penultimate whorls, there are 3 fine spiral 

 threads, and below it, on the last whorl, there are 3 rather coarser 

 threads, below which the rest of the slender rostrum is covered with 

 oblique, very much finer threads. The keel has 1 or 2 spiral striae upon 

 it, and the whole surface exhibits fine but distinct striae or lines of 

 growtli : aperture somewhat triangular above, produced below into a 

 very slender straight canal; outer lip thin, angled at the keel, faintly 

 or shallowly sinuated above it : columella covered with a thin glossy 

 callus, which extends from the tip of the canal to the outer lip above. 



"Length, 17mm.; diameter, 6mm. Aperture, with canal, 11mm. 



"Length, 17mm.; diameter, 6mm. Aperture, with canal, 11 nmi. 



" Tlie unique specimen, judging from the protoconch, is mei'ely the 

 young stage of a shell wliich attains larger dimensions. It consists only 



