174 MR. G. F. ANGAS ON NEW AUSTRALIAN SHELLS. [Mar. 6, 
cancellated with fine, close-set, thread-like lines; apex of the spire 
elevately produced. 
Long. 10, lat. 6 lin. 
Hab. Dredged at “Sow and Pigs” reef, Port Jackson (Brazier). 
A very elegant cone, totally distinct in its characters from any 
other Australian species. 
BirrruM TURRITELLIFORMIS, n. sp. (Plate XXVI. fig. 14.) 
Shell elongately turreted, rather thin, light yellowish brown, 
inclining to reddish purple on the upper whorls, transversely finely 
ridged, the interstices very minutely and closely longitudinally 
striated, the last whorl keeled below, with the base smooth and 
slightly concave; whorls 10, convex; sutures impressed ; aperture 
roundly ovate; outer lip simple, arcuate; columella somewhat 
thickened and twisted towards the base, canal short. 
Long. 4, lat. 1 lin. 
Hab. Port Jackson (Brazier). 
Were it not for the form of the aperture, this shell might easily 
be mistaken for a little Turritella. 
ALVANIA ELEGANS, n. sp. (Plate XXVI. fig. 15.) 
Shell minute, imperforate, scalariform, moderately solid, whitish, 
regularly cancellated by three transverse (on the last whorl four) and 
several longitudinal ribs, which become sharply nodulous at the 
intersections; whorls 5, convex, sutures deeply incised; aperture 
circular ; lip flattened and variced externally. 
Long. 14, lat. 3 lin. 
Hab. Port Jackson. 
This beautifully sculptured species is from shell-sand. 
ALVANIA GRACILIS, n. sp. (Plate XXVI. fig. 16.) 
Shell imperforate, elevatedly turbinate, moderately solid, light 
purplish brown ; whorls 5, longitudinally ribbed as far as the peri- 
phery of the last whorl, and strongly transversely lirate throughout, 
the intersections producing a regular beaded appearance ; the trans- 
verse ridges towards the base strongly defined ; aperture subcircular, 
peritreme thickened. 
Length 1, breadth 2 line. 
Hab. Port Jackson, from shell-sand (Brazier). 
TorcuLA PARVA, n. sp. (Plate XXVI. fig. 17.) 
Shell narrowly acuminately turreted, very pale brown, with an in- 
distinct light-chestnut band at the sutures, transversely very finely 
ridged, with three rather prominent keels on each whorl; whorls 11, 
slightly convex; sutures impressed; aperture subquadrate; outer 
lip simple; columella slightly arcuate above, a little thickened and 
produced at the base. 
Long. 44, lat. 1 lin. 
Hab. Dredged at the “Sow and Pigs” bank, Port Jackson (Bra- 
zier). 
