Alectri-on.'] GASTROPODA. 397 



and beset with small prickles, a tumid base, and a very short pillar. 

 Sculpture : There are on each whorl about 20 feeble narrow axial 

 ribs, which do not extend to the suture above, and die out on the 

 base ; lines of growth fine, flexuous, and close-set ; on the penulti- 

 mate whorl there are 4 broad, slightly raised, spiral threads, the points 

 of crossing with the axials rise into small tubercles ; on the body- 

 whorl their number is 5 or 6, and 4 to 5 more are on the base. Colour 

 chalky-white. Spire rather short, more or less scalar, of the same 

 height as the aperture ; outlines convex. Protoconch blunt and 

 rounded, of nearly 4 smooth convex whorls, the nucleus immersed. 

 Whorls 1 . shortly shouldered, lightly convex ; base rounded, concave 

 below. Suture impressed, flatly marginated below. Aperture oval, 

 not channelled above, deeply notched below. Outer lip thin, sharp, 

 and patulous. Columella short and concave. Inner lip thick, narrow, 

 extending over the parietal wall, which has no plait above, sharply 

 pointed and expanded below. Operculum plain-edged, small, tri- 

 angular, slightly subspiral, apex terminal. (Watson.) 



Diameter, 8-25 mm. ; height, 14-75 mm. (type). 



Animal unknown. 



Type in the British Museum. 



Hab. Chall. Stat. 169, east of East Cape, in 700 fathoms. 



.'K Alectrion fasciata, Lamarck, 1822. Plate 45, fig. 16. 



Buccinum fasciatuin, Lam., A.s.V., vii, 1822, 271 ; Voy. Astrol., ii, 445, 

 pi. 32, f. 18-21. Nassa fasciata, Lam., Conch. Icon., viii, pi. 4, f. 10. 

 N. (Hi ma) fasciata, Lam., Man. Conch. (1), iv, 46, pi. 14, f. 237, 238. 



Shell ovate, acuminate, somewhat ventricose, solid, cancellated 

 and granulated, body-whorl with 2 brown spiral bands. Sculpture 

 consisting of numerous equal vertical riblets, about 20 on the last 

 whorl, extending over the base to the siphonal fascicle, the interstices 

 wider than the ribs ; they are crossed by unequal and inequidistant 

 spiral ribs, the points of intersection raised into roundish granules ; 

 there are 4 rows of cinguli on the penultimate whorl, the lowest of 

 which is narrower and close to the suture ; body-whorl with 7 to 9 

 cinguli ; a few fine spiral striae are crossing the growth-lines. Colour 

 whitish, with a narrow or broad brown spiral band on the suture of 

 the spire-whorls, continued over the periphery of the body-whorl ; 

 a second brown band on the base. Spire conic, somewhat scalar, 

 higher than the aperture. Protoconch obtuse, smooth, of 2 whorls. 

 Whorls 8, flattish, the last ventricose, convex, slightly ascending in 

 front of the aperture ; base channelled above the broad and elevated 

 fasciole, which bears about 5 spiral smooth ribs. Suture distinct, 

 undulating. Aperture slightly oblique, ovate, channelled above, with 

 a short, reflected, and deeply notched canal below. Outer lip convex, 

 with a very prominent marginal varix, with 5 teeth on its lower inner 

 part. Columella subvertical, concave, obliquely truncated below. 

 Inner Up thick, spreading beyond the pillar, with a few tiibercles ; on 



