A RKVISION f»K HIE A (ISTKA tJAN Tf'KRID.t: HKr.I,KV. 251 



truncated by a Kinootli and uuiiHtricted fasciole, amounting to eleven on 

 the pennltiraate ; on tlie earliei* part of the body-whorl these ribs are 

 smaller mid cloher tof^ether than previouHly ; half a whorl behijid the 

 aperture is a rouj^-h varix, l)eyond which the ribs cease; spiials — on the 

 base are about a dozen fine j^rooves ; between the suture and the fasciole 

 is a spiral ridge which tends to break up into beads opposite the ribs. 

 Apertui-e narrow; sinus C-shaped ; a thick callus knob occurs at the right 

 insertion. Length 8 mm., breadth 3 mm. 



Ilnh. Queensland : — 5 fatlioms, off the Horsey River, Gulf of Car- 

 pentaria (type, self). 



Melatoma eburnea sp. nov. 



(Plate xlv., fig. 43.) 



Shell solid, glossy, cylindro-fusiform. Coh^ur uniform ivory-yellow. 

 Whorls seven, including a two-whorled dome-shaped protoconch. Suture 

 impi'essed. Scul[)ture : — Thei-e are no spirals; the ribs are set about 

 fourteen to a whorl — they start up suddenly, immediately below the 

 contracted fasciole area, are prominent, perpendicular, wide-spaced, dis- 

 continuous, decreasing anterioily, become obsolete on the last whorl, and 

 vanish below the periphery. Aperture wide; no vaiix ; lip simple; sinus 

 deep, U-shaped, right insertion iucrassate ; throat smooth ; inner lip 

 overlaid with a thick polished callus ; canal short and open. Length 

 10 mm., breadth 4 mm. 



This is like iJrillia Icevis Hutton, but is much smaller, with sharper 

 and more numerous ribs. 



Hab. N.S.Wales : — 55 fathoms, Wollongong ("Thetis"). Victoria: — 

 80 fathoms, Gabo Island (type, "Endeavour"). 



Melatoma gratiosa Soii-erhij. 



Drillia gratiosa Sowerby, Proc. Malac. Soc, ii., 1896, p. 25, pi. iii., fig. 1. 

 Irl. Verco, Trans. Roy. Soc. S.A., xxxiii., 1909, p. 302. 



Hah. South Australia: — St. Vincent Gulf (type); 17 fathoms. Point 

 Marsden ; 22 fathoms, Kangaroo Island ; 49 fathoms, Beachport (Verco). 



Melatoma hakpularia Des Moulnis 



Pleurotoma harpula Kiener, Coq. Viv., 1840, p. 58, pi. xviii., fig. 3. 



Crajisispira harpula Menke, Yoldi Cat., 1853, p. 73 (not Murex harpula 

 Brocchi, Conch, foss. subapenn., 1814, p. 421, pi. viii., fig. 12, nor 

 Pleurotoma harpula Deshayes, Descrip. Coq. Foss. Paris, ii., 1834, 

 p. 490, pi. Ixvii., figs. 22, 23, 24). 



Pleurotoma harpularia Des Moulins, Act. Soc. Linn. Bordeaux, xii., 1842, 

 p. 162. Id. Reeve, Conch. Icon., i., 1843, pi. xv., fig. 124. 



