122 RECORDS OF THE AUSTRALIAN MUSEUM. 



tuie oval, shielded by the youngest varix ; columella excavate. 

 Length 20 mm.; breadth, 8 mm. 



Some fragments of this distinct species were also dredged in 

 eighty fathoms twenty-two miles east of Narrabeen, N. S. Wales, 

 by Prof. W. A. Haswell and one of us. 



Trophon molorthus, sp.nov. 



(Plate xxiv., fig. 23). 



Shell narrowly fusiform. Whorls subgradate, seven, including a 

 smooth pointed two-whorled protoconcli. Colour dull white. Sculp- 

 ture: the radial ribs about twelve toa whorl, are broad and wave-like, 

 divided by interstices of equal breath, commence at the shoulder, 

 swell at the periphery, and fade away towards the lower suture, 

 or, in the case of the last whorl, the base. The upper whorls are 

 traversed by about eight evenly spaced spiral low cords, separated 

 by Hat interstices of equal breadth, which cross ribs and interstices 

 alike. On the last whorl the cords amount to twenty-two. 

 Aperture oval, lip unfinished, canal turned a little to the right. 

 Length, 10 - 5 ; breadth, 4*5. 



Several specimens. A near ally, a variety of which occurred 

 with it at Cape Pillar, is T. simplex, Hedley. s From that 

 T. molorthus differs by less rounded and more slowly increasing 

 whorls, shorter canal, and more numerous spirals. 



Trophon sarmentosus, sp.nov. 



(Plate x.xiv., fig. 24). 



Shell small, thin, rather glossy, narrowly fusiform, angled at 

 the shoulder. Whorls six, including a smooth, pointed two- 

 whorled protoconcli. Colour pearl grey, with ferruginous on 

 base, apex, and sometimes a sub-sutural line. Sculpture: ten 

 low, broad, solid varices, equal in breadth to their flat smooth 

 interstices, continue perpendicularly from whorl to whorl. On 

 the shoulder these develop a pointed tuberele, and on the base 

 are crossed by indistinct spirals. Aperture oval; from the base 

 of the columella projects the inner side of the short rather straight 

 canal. Length, 5; breadth, 2-15 mm. 



Several specimens were obtained. T. petterdi, Crosse, T. 

 rudolphi, Brazier, and the present form a graduated series. The 



- Hedley— Austr. Mus. Mem., iv. 1903, p. 380, f. 93. 



