S.A. NAT., VOL. XIV. 
Novemulr. 1932. C. Cotton end F> K. Godjf^y, 
Zl. 
retractile, subcylindric proboscis, but there is no muzzle like that 
of Scala; below the oral orifice is a distinct elongated flap, the 
mentum, which is usually more or less medially grooved or 
fissured; foot short, moderately pointed behind, with a small 
operculigerous lobe above and sometimes a small tentacular ap- 
pendix on each side, and double-edged in front; mantle slightly 
canaliferous on the right upper margin; a single gill-plume. 
Sexes aistinct. Pyramideltidae — Oheliscldae. 
Symola A. Adams 1860. Very small, tapering, straight,, 
vitreous, polished; protoconch sinistral; adult whorls flattened, 
future well marked; mouth somewhat oblong, outer lip simple, 
columella with a single plication. Type — Syrnola gracillima A. 
Adams (Japan). This genus was set up for banded translucent 
Odostomia. 
S« aurantiaca Angas 1867 {Styloptygma) (= Etilima aur~ 
Petterd 1884). “The Golden Syrnola.’^ Acutely elongate, 
rather thin, shining; fulvous orange with a pale band next below 
the sutures, darker on the lower whorls, fading into white on the 
upper whorls, which arc glossy and transparent; axial striae, 
fine; spire turreted; whorls eight, slightly convex; suture im- 
pressed; mouth small, narrowly ovate, produced anteriorly; col- 
umella fold small and rudimentary. Height 6, diam. 1.5 mm. 
Beachport to St. Francis Island, beach to 55 fathoms. Rare. 
(Type locality — Port Jackson N.S.W, from deep water). May 
referred to the colour as orange-and-white in Tasmanian specimens. 
S- bifasciata Tenison-Wooda 1875 {Obeliscus) (= 0. juc~ 
undus Angas 1877), “The Two-banded Syrnola.” Acutely el- 
onsrate. thin, shining, polished, subtranslucent; horny or whitish, 
with two light brown bands, three on the body-whorl; axial strrae, 
fine; protoconch mamillate, sinistral; adult whorls nine, flatly 
convex; suture impressed; mouth pear-shaped; outer lip thin; 
inner lip reflexed; columella fold not conspicuous. Height 7, diam. 
2 mm. Beach and dow'n to ISO fathoms, Beachport S.A. to King 
George Sound W.A. Not common. (Type locality — Long Bay, 
Tasmania). 
S- brunnea A. Adams 1855 {Obeliscus). “The Brown 
Syrnola.’- Elongately tapering; brown or reddish-brown; axial 
striae, fine; whorls very numerous, flattened, slightly crenulated 
at the suture, last whorl rounded; suture deep; mout hoval, rather 
expanded anteriorly; columella straight, reflected below, expanded, 
with one fold. Height 20, diam. 5 mm. Encounter Bay S.A. to 
Bunbury W.A., beach and down to 150 fathoms. Not common. 
(Type locality — ^Japan). South Australian specimens are slightly 
broader than those from Japan. 
