Marginellti.] GASTROPODA. 463 



and with a blunt apex, about half the height of the aperture. Proto- 

 conck paucispiral, smooth, broadly rounded, with a flat small nucleus. 

 Whorls 4. lightly rounded, the last narrowed at the base and with a 

 distinct swelling curving out and forward from the columella ; base 

 convex. Suture rather broadly impressed and submargined below. 

 Aperture high and narrow, margins subparallel, with an indistinct 

 channel above. Outer Up slightly reflected, with a distinct varix, a 

 little retrocurrent at its insertion, with a minute sinus above. Colu- 

 mella slightly oblique, nearly straight, with 4 equidistant strong plaits, 

 the first transverse, the following two oblique, and the last subvertical 

 and margining the ver}< short broad and anteriorly rounded canal. 

 Inner Up narrow on the oblique, somewhat convex body. 



Diameter. 2-1 mm. ; height, 3-8 mm. (type). 



Animal unknown. 



Type in the Dominion Museum, Wellington. 



// a fr. Off Great Barrier Island, in 110 fathoms (type). 



Remark. This species is allied to M. Allporti, but is distinguished 

 from it by the shorter spire, and higher aperture, the bluntly rounded 

 apex, the stronger columella plaits, and the absence of all colour- 

 rnarkings. 



8. Marginalia lurida, Suter, 1908. Plate 20, fig. 16. 



Marginella (Glabella) lurida, Suter, P. Mai. S., viii, 1908, 183, pi. 7, f. 14. 



Shell very small narrowly oval, smooth and shining, white, trans- 

 lucent when fresh, with a moderately elevated spire. There is no 

 sculpture. Colour white, but fresh shells are vitreous. Spire elevated, 

 conic, about half the height of the aperture. Protoconch obtuse, 

 rounded. Whorls 3. the last high, moderately convex, narrowed 

 towards the base, the spire-whorls flattish. Suture superficial. Aper- 

 ture oblique, narrow, widening below, lightly channelled above, trun- 

 cated and flatly rounded at the base. Outer lip lightly convex, thick- 

 ened at the middle, with a low outer varix, smooth inside, retrocurrent 

 toward the suture, and with a shallow sinus. Columella oblique, with 

 4 equidistant strong plaits, the lowest twisted and extending to the 

 basal margin. 



Diameter, 1-5 mm. ; height, 3 mm. 



Animal unknown. 



Type in my collection. 



Hob. Foveaux Strait, in 15 fathoms (type) ; near the Snares and 

 Bounty Islands, in 50 fathoms (Captain Bollons). 



9. Marginella muscaria, Lamarck, 1822. Plate 46, fig. 21. 



Marginella muscaria, Lam., A.s.V., x, 1822. 441 ; Kiener, Icon. Coq. Viv., 

 1834, pi. 3, f. 14 ; Thes. Conch., i, 1846. 376, pi. 75, f. 45^7 ; Conch. 

 Icon., xv. 1864, pi. 8, f. 29 ; Pritchard and Gatliff, P.R.S. Vic., xi (n.s.), 

 189; Tate and May, P.L.S. N.S.W.. !!)<>], 362; Gillies, T.N.Z.I., xiv, 

 170; Button, T.N.Z.T., xvi, 224. Erato lactra, Hutton, M.N.Z.M., 

 63, 202. Mrirqinella formicula, Lam. : Tryon, Man. Conch. (1), v, 23. 

 pi. 6, f. 3 ; not of Lamarck. 



