336 



ing scales, and below this folded in two spiral lines. In the 

 body-whorl are four of these spiral foldings, i^rogressively 

 decreasing in size towards the base of the shell, in front of 

 which the lamellae ai'e crenulate as they run along the snout, 

 which they cross to the right further and further forward as 

 they approach the aperture. 



Dim. — Length, 13*9 mm.; of body-wliorl, 9'8 mm.; 

 width, 5'3 mm. 



Locality. — Type in 150 fathoms off BeachjDort ; in 200 

 fathoms, 2 good. 



Trophon recurvatus, n. sp. PI. xxiv., tigs. 7 and 8. 



Shell fairly solid, elongate-conical, of 7 whorls, includ- 

 ing a prominent conical protoconch of 2|- smooth, convex 

 turns, separated by a deep suture, and with a curious acute 

 exsert apex. Spire-whorls short, wide ; with very oblique 

 simple sutures ; swollen, sharply angulate just above the 

 middle, below which in the body-whorl the Ijase is rapidly 

 contracted. Aperture roundly oval ; canal about as long as 

 the aperture, slightly deviated to the left, forming an open 

 angle with the columella, markedly recurved. Outer lip 

 thickened, equidistantly biangulate ; inner lip inconspicuous. 

 The sculpture consists of axial lamellae, thirteen in the penul- 

 timate, which are folded into prominent scales at the angle ; 

 and in the body- whorl, at a spiral cord (which starts at the 

 suture from the back of the aperture, runs round the bas^e, 

 and angulates the outer lip) ; and then crenated run over 

 three obsolete spirals winding round the base, and finally 

 bend in turn to the right over the back of the canal. It is 

 of a uniform light-horn colour. 



Dim. — Length, 67 mm. ; of the body-whorl, 3'6 mm. ; 

 width, 3 mm. 



Locality. — Type in 200 fathoms off Beachport. 



The recurved short canal distinguishes it from T. plici- 

 hnninatiis. 



Mitra arnoldi, n. sp. PI. xxiv., fig, 6. 



Shell solid, elongate-oval, of 7 whorls, including a blunt 

 brown protoconch of 2 convex smooth whorls. Spire-whorls 

 convex in the upper half, nearly straight in the lower. Suture 

 distinct, very narrowly tabulate. Base moderately roundly 

 contracted. Aperture elongate-oval. Outer lip simple, thin, 

 profile slightly sinuous, with numerous spiral plicae in the 

 throat. Columella nearly straight, slightly cut away to the 

 left in front, with four stout oblique plaits ; notch with a 

 narrow reflected edge. Wide, round, low axial ribs, much 



