2 ?. 
S.A. NAT, VOL. XIV. r - i ■ 
Novkmbef. . 1932. By H. C. C ation an d f. k. Godjre 
papi!lary~like tip of the loop; adult whorls five, convex, slightly 
protuberant at the suture above; mouth oval; columella with 
a strong transverse fold at its origin. Height 3 diam. 1.1 mm. 
Beach, Port Willunga, dredged, Newland Head, 28 fathoms. 
Also beach Rottnest Island, W.A. (Type locality Frederick 
Flemy Bay, Tasmania.) Most like O. laevis, but the whorls are 
more convex, shell more cylindrical, and much smaller. 
O. laevis Angas 1867. “The Smooth Odostomia.” Ovately 
conical, thin, subdiaphanous, shining; white; whorls seven, a 
little rounded, last whorl not quite one half the length of the 
shell; sutures channelled; mouth oblong-ovate, a little produced 
anteriorly; outer lip thin, acute, simple; columella with a strongly 
developed, transverse fold. Height 7 diam. 3 mm. Beach, Gulf 
St. Vincent, Murat Bay, Venus Bay; dredged Rapid Head, 
Beachport, Cape Jaffa, 10-130 fathoms. (Type locality Port 
Jackson, N.S.W.) A variant from Port Willunga is as long, 
more solid, sutures more channelled, mouth much shorter, throat 
has spiral striae. 
O. mayi Tate 1898 {Odontostomia „[Pyrgulina]), 
“May’s Odostomia.” Conoidally turreted, rather solid; dull 
white; axial ribs, rounded oblique, wider than the interspaces, 
which are not sculptured; last whorl with about twenty axial 
ribs, which terminate at a spiral groove on the periphery; base 
somewhat flattened, radially ridged, defined by a spiral rib, 
which margins the peripheral groove; adult whorls five; suture 
deeply and broadly channelled; mouth oval; outer and inner 
lips joined by a callus; columella with one stout fold. Height 
2-5, diam 1 mm. Rare. Beach, St. Francis Island; dredged, 
Gulf St. Vincent, St. Francis Island, Beachport, 20-40 fathoms. 
Also King George Sound, W.A, (Type locality — D’E,ntrecas- 
treaux Channel, Tasmania.) 
O. metcalfei Pritchard & Gatliff 1900 (Odontostomia) 
(—0. eburnea Metcalfe, MS. in British Museum). “Metcalfe’s 
Odostomia.” Biconic, thin, translucent; milky-white; axial 
striae, faint; protoconch sinistral of one-and-a-half turns with 
immersed tip; adult whorls three to four, somewhat convex; 
suture distinct; a narrow margin running parallel to and 
a little below the suture; mouth ovate, slightly effuse 
anteriorly; columella, with one strong tooth-like fold at the 
middle of the mouth; outer lip thin. Height, 2.5 diam. 1-25 mm. 
Rather rare. Beach, Yankalilla, Grange, Beards Bay, St. Francis 
Island, Murat Bay; dredged; Backstairs Passage, Gulf St. Vincent 
down to 35 fathoms. Also beach, King George Sound, Rottnest 
Island, W.A. (Type locality — Flinders, Western Port, Victoria)* 
