86 
South Justra/'uni Slirlls. 
S.A. NAT., VOT.. Mv 
_ May. 
have all of them the spiral lines in front, very few have the rest 
of the shell smooth, most have similar spirals at the posterior 
part and some over the whole surface; so these spirals wjll not 
distinguish cutladifera from brevis. 
H. tenera Adams 1850 {Bulla). Obliquely suboval, hornr. 
pellucid, axially strongly striated, rather green, with very minute 
spiral lines: tauter lip straight, posteriorly rounded. Height 13. 
diam. 8.5 mm. Hcachport S.y\. to Rottnest Island W.A. Fairlv 
common in beach shell sand. Aj>parently a shallow water form, 
^ih'pe locality — uncertain. Pilsbery gives various localities— 
Sue 2 fC(')okc). Mauritius (Lien, Mobius), Reunion (I)lo- 
hayes). If this is the same species as H. vitrea A. Adams (as 
Cooke thinks) then priority applies and tlie name becomes //. 
vilrea Adams := tenera Adams 1850. 
H. cuticuHfera K, A. Smith 1872. Elongate-cylindrical, 
aboA'e and below roundh quadrate, tliin; white, buff tinged ic- 
wiird base and vertex, uniformly light horny when fresh; perlo- 
stracLim very thin, shining; growth lines, fine, flexuous; spiral 
linear grooves, rather distant, fine, closer together and more dis- 
tinct on base; vertex impressed, imprerforate, tire lip reflexed at 
the centre body, whorl cylindrical, narrowly angularly rounded 
above, straight in the middle, base flatly convex; mouth as high 
as the shell, narrow above, scarcely produced above the vertex, 
Avidened below; outer lip produced and angularly rounded above; 
almost straight at the middle; columella short, rather straight, 
with the inner lip reflexed over it. Height 14-, diam. 6.S mm. 
l<are. Streaky Bavv Venus Ba)u (Type locality — Port Jackson 
A.S.W .) d’he lateral outlines of this species are nearh' .straight; 
the superior striae are about six in number, the inferior about 
eighteen. H. brevis Quo}' Sc Gaimard is a shorter shell with more 
convex outlines. 
H. cymbalum Quoy S: Gaimard 1833 {BuUa). ‘‘The Cym- 
bal Haminoea.” Globose, polished, translucid, white; growth 
lines ver\' faint; spire rounded, sunken but not umbilicate; mouth 
wide, rounded below, somewhat contracted efbove; outer Hp 
somewhat expanded and slightly incurved. Height 14, diam. 11 
jiim. kangaroo Island and Spencer's Gulf, to the westward. 
Beach, not uncommon. (Type locality — Guam). This species 
lias been reported by various authors from such distant locali- 
ties as japan, Xcw Caledonia, Mauritius, Reunion, Querimba 
Islands; some ma}' be incorrect. South Australian specimens are 
probabh' onh^ a smoother, more delicate form of //. brevis Quoy 
k Gaimard. 
