1877.| MR. G. F. ANGAS ON NEW AUSTRALIAN SHELLS. 173 
MARGINELLA METCALFI, n.sp. (Plate XXVI. fig. 9.) 
Shell elongately subtriangularly ovate, rather thin, smooth, 
polished, creamy white; whorls 4; spire obtusely conical, blunt at 
the apex; aperture rather narrow; outer lip thickened and slightly 
varicose ; columella 4-plaited, the lowest plait descending. 
Long. 2, lat. 1 lin. 
Hab. Port Jackson. 
More elongated and less triangular than M. ochracea, Angas, 
and wanting the orange effuse band and pale varix of the latter. 
OBELISCUS JUCUNDUs, n. sp. (Plate XXVI. fig. 10.) 
Shell elongately subulate, smooth, shining, white, with two light- 
brown bands on each whorl, three on the last one; whorls 9, nearly 
flat; apex papillary, sinistral ; sutures impressed ; aperture quadrately 
ovate ; outer lip simple, arcuate ; columella with a prominent twisted 
fold encircling the pillar. 
Long. 3, lat. 1 lin. 
Hab. Port Jackson, deep water (Brazier). 
OscrLLa LiGaTA, n. sp. (Plate XXVI. fig. 11.) 
Shell very minute, elongately pupiforin, rather thin, rosy white, 
transversely, broadly, and prominently ribbed; whorls 6, the apex 
terminating in a mucro or nipple; aperture quadrately ovate; outer 
lip simple; interior of the columella furnished with a single small 
transverse tooth or plait. 
Long. 1, lat. 3 lin. 
Hab Botany Bay, New South Wales. 
This curious little shell is remarkable for its mucronate apex, and 
its pale pinkish colour. It belongs to the Pyramidellidz. 
STYLIFER BRAZIERI, n. sp. (Plate XXVI. fig. 12.) 
Shell rather acuminately ovate, smooth, pellucid, white, polished ; 
whorls 6, rounded, flattened just below the sutures, which are very 
finely callously marginate; spire elevated, apex styliform; aperture 
subovate, pointed behind, and rounded in front; outer lip thin, 
simple ; columella arcuate, very slightly thickened above, the margins 
joined by a thin distinct callus. 
Length 2 lines, breadth 1 line. 
Hab, ‘Sow and Pigs,” Port Jackson. Parasitic on a species of 
starfish (Brazier). 
CoNUS METCALFEI, n. sp. (Plate XXVI. fig. 13.) 
Shell triangularly elongate, very slightly everted towards the base, 
ornamented with rows of small distant square or elongated irregular 
brownish-yellow spots, those in the centre larger and more varied in 
shape, forming a sort of band, sculptured all over with rows of 
minute, close-set, oblong punctures more numerous and distinct 
towards the base, which is encircled by a number of narrow elevated 
ridges ; whorls 7, upper ones slightly concave, spirally striated, and 
