79 
XAT, VOL. XIV. 
1933 . BrrnanJ C. Cation and F. K. Godfrey. 
Ringicula Deshayes 1838^ Small, solid, ovate-globose; 
nearly white; spire conical; mouth from one-half to three-fourths 
the slielPs height, conspicuously notched and channelled at the 
base; outer lip thickened and often dentate or crenulate within, 
margined with callus outside; columcllar margin heavily callous- 
ed, with two to four strong entering folds, d^ype — Auricula 
rmgen.s J^amarck. 
R. australis Minds 1844. “I'hc Southern Ringicula.” Oval, 
rather thick, white; smooth throughout (as originally described), 
or regularly spirally incised, about eight incisions in the penulti- 
mate Avhorl; spire elevated; whorls five-and-a-half, moderately 
convex; last whorl, longer than the spire, rounded, and attenu- 
ated at the base; mouth contracted, somewhat ear-shaped, mar- 
gins united by a strong callous deposit forming a projecting 
tubercle; outer lip thick, reflected; inner lip dilated, with two 
folds, the stronger adjoining the base. Height 3, diam. 1.6S mm. 
?v;ot uncommon. Backstairs Passage and Gulf St. X’incent, west- 
ward to King C]eorge Sound W.A. — beach and down to 55 fa- 
thoms. Some specimens from St. Francis Island are more elate 
but varying greatly in length. One from Sceales Bay is larger 
and subscalar in the spire. (Type locality- — Port Lincoln S.A.). 
Fresh specimens smooth throughout are rare. 
R. meridionalis Hedley 1911. "The Meridional Ringicula.’’ 
Ovate, tliin, the more solid parts opaque white, the less solid 
translucent pearl grey; spiral ribs, flat topped, with shallow 
spiral grooves between, sixteen on last whorl (some specimens 
have the ribbing closer); spire elevated; protoconch bulbous; 
whorls five, convex, last ventricose; mouth oval; outer lip thick- 
ened forming a slight external varix, smooth within; columella 
••.vith two strong folds, above which a callus thick-spread on the 
body wliorl projects a broad, blunt tubercle into the aperture. 
Height 2.5, diam. 1.65 mm. Dredged — Cape Wiles, Cape Jaffa, 
Xeptune Islands, 100-130 fathoms. (Type locality — 40 miles 
.south of Cape Wiles S.A., 100 fathoms). R. australis Hinds, is 
larger but proportionately narrower. 
R. semiscuipta Hedley 1911. Rather large and thin for 
the genus, ovate-globose, glossy, subtranslucent; growth lines 
j:nc, microscopic: spiral scratches, few, on shoulder; half-a-doxen 
widely spaced spiral grooves on the base; protoconch tilted; sub-- 
immersed; whorls (including protoconch) five, rounded; suture 
Impressed, bordered by an opaque line; outer lip thickened in a 
low varix, not dentate, sinuate posteriorly, insertion rising a little 
above the line of the suture; inner lip spread on the body whorl 
in a thick callus, but without any tubercle; columella with two 
