S.A. NAT., VOL. XIV. 
22. ^outh Australian Shells. No^embkr, 1932. i 
S. infrasulcata Tate 1898 (Odontostomia). “The Basally- 
grooved Syrnola/' Narrow-lanceolate, not umbiticated , shining; 
white; axial striae, feeble; about six spiral incised lines on base; 
protoconch sinistral; adult whorls about eight, flat, body-whorl 
subangulate at the periphery; suture linear; mouth narrow, oval; 
outer lip not ribbed within; columella with one very prominent 
fold, In front of which the inner lip is effusively expanded, and 
its margin reflected. Height II, diam. 3.5 mm. Holdfast Bay, 
beach, (type locality) ; also Wauraultie, Spencer Gulf, In shell sand; 
dredged Rapid Head, Beachport and Cape Borda 10-150 fathoms. 
Much like S. gtacillima A. Adams, the type of the genus, but 
larger. There may be up to five groves on the body-whorl 
above the periphery, some of which are continued submedially 
on the spire whorls. The species is conspicuous by its elongate- 
oval mouth, effuse below, and the sulci on the base of the body- 
oval mouth, effuse below, and the sulci on the base of the body- 
whorl. 
S. tincta Angas 1871 {Pyramidella) (— S. michaeli Teni- 
son-Woods 1876). “The Tinted Syrnola.” Tapering, rather solid, 
shining; whitish, irregularly banded and marked with brown; 
smooth; whorls ten, nearly flat; suture deeply impressed; mouth 
ovate; outer lip thin; columella with one rather prominent fold. 
Height 6, diam. 1 mm. Beach Grange, Yankalilla, Venus Bay, 
Sceales Bay; dredged Gulf St. Vincent, Cape Borda, Neptune 
Islands, Beachport, 5-104 fathoms; also Western Australia, beach, 
Ellensbrook, Yallingup, Bunbury, Rottnest Island, Hopetown, 
Albany. (Type locality — Port Jackson N.S.W.). There is a 
translucent, colourless, form (a) with whorls slighdy round, 
bearing obsolete axial subcostate plicae; there are two forms 
larger than the type, one of which forms (b) is narrower, and dis- 
tinctly twobanded with brown; another form (c) of similar size 
to the type is narrower and more cylindrical, with a comparatively 
large protoconch, the shell having brown bands and blotches. The 
fine spiral and axial markings are formed on all recent individuals. 
S. unisulcata sp. nov. (not S. jonesiana Tate 1898). PI. 1, 
fig. 6. “The Single-grooved Syrnola.” Small, long, narrow, 
acute, thin, polished; white; spiral striae, subienticular, fine; 
axial striae, very fine; protoconch sinistral, oblique, smooth, of 
two-turns; adult whorls eight, upper whorls rather convex, lower 
whorls almost straight sided; one fine sulcus at the suture runs 
found the body whorl and penultimate fading away on the anti- 
penultimate; suture narrowly channelled; mouth pyriform; outer 
lip slightly effuse, and evenly curved; columella with a single 
