728 STUDIES ON AUSTRALIAN MOLLUSCA, xii., 



median keel, descends to the aperture. The upper whorls have 

 a second conspicuous spiral keel below the suture, between which 

 and the peripheral keel lies the fasciole, a third and fainter keel 

 runs below the median. On the body-whorl, there are about a 

 dozen spirals below the main keel. The fasciole is sculptured by 

 transverse crescentic threads becoming weaker on the later 

 whorls. Radial threads also appear over the whole shell. 

 Aperture narrow, notch deep, subsutural, outer lip simple, thin, 

 projecting. Canal broad and short. Length, 4; breadth, l'5mm. 



Hah. — 10 fathoms, off Cape Sidmouth, type, A. U. Henn; 15 

 fathoms, off the Palm Islands, Queensland (self). 



Mr. H. B. Preston reports that he was unable to match this 

 small species in the collection of the British Museum. The 

 sculpture of the fourth whorl is a good recognition-mark for this 

 shell. 



Daphnella aculeola, sp.nov. 

 (Plate Ixxxii., fig. 58.) 



Shell small, lanceolate-fusiform. Colour buff, stained with 

 ferruginous at the extremities. Whorls eight, the first three 

 minute, smooth, forming the protoconch, the rest sculptured, 

 gradate and rapidly increasing in size. Sculpture : broad peri- 

 pheral undulations compose radial ribs spaced at ten to a whorl, 

 fine spiral cords continue across both ribs and interstices and 

 extend over the base; of these, the last whorl carries sixteen and 

 the penultimate six, those on the periphery increase in size and 

 sharpen the projection of the ribs. Aperture ovate, outer lip 

 thin, simple, a slight smear of callus on the columella. Canal 

 short, straight, open. Length, 8-5; breadth, 4 mm. 



Hah. — Middle Harbour, Sydney (self). 



This is a narrower shell than Daphnella aculeata Webster, 

 with wider radials and spirals. 



Glyphostoma alliteratum, sp.nov. 

 (Plate Ixxxii., figs. 5 6, 57.) 

 Shell small, solid, acuminate-fusiform. Colour grey to orange, 

 aperture stained with chocolate, usually an intenser patch ante- 

 riorly and posteriorly, frequently a chocolate line upon the base 



