215 



pt. 4, 1906, 

 N.S.W., 80 



). 297. 

 ms., 2 



free portion may be 15 mm. long. No nucleus has been seen. 

 'I'ljpe Joctditij. — 130 fatlionis, of!" (Jape Jaffa ; also in 90 

 fathoms, 37 dead; in 40 fathoms, off Beachport, one dead. 



Mangfilia spica, Hedley. 



Records of the Austr. Mus., vol. vi., 

 pi. Iv., fig. 20. Type locality, off Nariabeen 

 examples, 100 fms., off Wollongong 1. 



Dredged at 40 fathoms, off Beachport, one dead ; and at 

 110 fathoms, one dead. 



The South Australian shells vary from the type in hav- 

 ing six spirewhorls instead of four ; and the four earlier whorls 

 are not quite so long as those which form the spire of the 

 type, the axial ribs are more numerous, and are less marked 

 below the suture. 



Drillia hecatorguia, n. sp. Figs. 2 and 3. 

 Shell small, stout, biconic, 

 whorls six. Protoconch flat, two 

 smooth convex turns. Spire- 

 whorls with a sharp medial angu- 

 lation, undulated by pliciform 

 tubercles (nine in the penulti- 

 mate) plicae reaching the lower 

 suture; suture slightly adpressed. 

 Growth-lines microscopic. Body- 

 whorl half as long as the shell ; 

 excavated below the suture, then 

 acutely angled ; faintly concave 

 immediately below the angulation, 

 then scarcely inflated, and next 

 roundly contracted in the lower third. Tubercular plicae wide, 

 extend from the angle, soon become obsolete. Growth-lines 

 faint, rude near the aperture. Sinus half as deep again as 

 wide, bounded by the angle. Aperture oblique, length nearly 

 four times its width, elongate-oblong. Outer lip simple, thin, 

 convex. Columella convex in posterior half, straight ante- 

 riorly. Inner lip thin, applied, slightly spread, extending to 

 suture. Anterior notch moderately wide. Colour translu- 

 cent white, faintly tinged with brown. 



Dijn. — Length, 6*1 mm. : breadth, 2*8 mm. Length of 

 aperture, 3'2 mm. The largest examjole is 7 mm. long. 



Type Locality. — 104 fathoms, 35 miles south-west of 

 Neptune Islands: 28 dead. 



Nucula micans, Angas. 



Nucula micans, Angas. Proc. Zool. Soc, Lond., 1878. p. 864, 

 pi. liv., f. 16. Type locality, shell sand. Salt Creek; Glenelg, St. 



Fig. 2. 



Fig. 3. 



