134 



Length, 55 ; breadth, 20 ; aperture, height, 9"5 ; breadth, 7'5 ;■ 

 length of canal, 30. 



Localities. — Blue clays at Schnapper Point, and lower beds 

 at Muddy Creek. 



Another remarkable species of the same type as F. foliaceus , 

 but the coronal fringe is cut up into spines, as in the recent 

 JF.fagoda, Lesson, from which it differs by its shorter spire and 

 narrower whorls, serrated lirse on the posterior slope of the- 

 whorls, and in the shape of the last whorl, which is prickly 

 spirally ridged on the base. 



3. Fusus craspedotus, s-pec. nov. Plate vii., fig. 4. 



Shell thin, fusiform, with a high spire, ending in a small 

 mamillate apex of two smooth whorls ; whorls eight and a half 

 in all, excepting apical ones, very angular, and compressed into 

 a narrow keel, crenate-dentate on the margin. Last whorl with 

 the posterior slope convex, depressed behind the keel, .and 

 much more so at the suture ; the rounded and contracted base- 

 is produced into a long, rather broad, somewhat flexuous beak ;, 

 ornamented on the posterior slope with numerous inconspicuous 

 spiral threads, and towards the middle by two or three promin- 

 ent ones, crossed by growth lines which are raised into minute 

 scales on the larger lirae ; bases of serrations with rounded 

 ridges conformable with their curvature. Base of body whorl 

 encircled by a slender keel, which is coincident with the pos- 

 terior angle of the aperture ; the whole surface roughly cancel- 

 lated b}- numerous unequal spiral threads and lamellae of 

 growth ; beak encircled with spiral threads and two or three 

 ridges carrying vaulted scales. 



Aperture angularly rounded ; outer lip thin, its margin 

 crenulated, sulcated within, running back in a short canal at 

 the keel, and somewhat insinuated behind the keel. 



Length (canal incomplete), 47 ; breadth, 20 ; aperture, height 

 15, breadth 8 ; length of canal (incomplete), 14. 



Localities. — Blue clays at Schnapper Point ; and lower beds 

 at Muddy Creek; Table Cape {B. M. Johnston'.). 



This belongs to the same group ^s F. foliaceus, and, like all 

 cohabitant species, the interior is grooved coincident with the 

 keel ; its shape and ornament distinguish it. 



4. Fusus spiniferus, spec. nov. Plate vii., fig. 1. 

 Shell somewhat thin, of seven whorls, similar to F. acan- 

 tliosteplies, with a shorter spire ; the summit is a little variable 

 in shape, but is never spherical ; the posterior slope of the 

 whorls without any spiral ornament ; the base of the last whorl 

 with a crenated slender keel coincident with the posterior angle 

 of the aperture, and usually with a similar one in front of, but 



