So irth . Iustrahan 
S.A* NAT'., \ X iT.. \\ . 
march 27th, 1934. 
E. stellata A. Adams 1851 (Glypidina ). “The Star-like 
J'.iiiarginula. Solid, elliptical, depressed conical, protocol! eli 
• nbcemrai, whitish; radiating ribs, elevated, subspinulose, intcr- 
'-ticcs sharply roughened bv close decussating striae and costel- 
hw; margin of aperture dentate, stilus sublateral, inside produced 
m a canal toward the apex. Length 7.a, breadth 4.5, height 2.5 
n,,n * 1 dredged—Backstairs Passage, 22 fathoms, one dead. 
' I , V P C v'cality Australia). 1 his species differs from E. ruyosa 
Hum Sc Gaimard, in the production of the ribs at their marginal 
termination, and the greater coarseness of the sculpture general¬ 
ly (Adams). In the* Pate collection several shells are labelled 
0 l tala, which are probable onlv voung vugosci. 
E. flindersi Cotton I MO (— A. cotri'exa ftindersi Cotton 
1<y 30). PI. 1, tig. 4. “Minders' Kmarginula.” Shell small, solid, 
sNii-conica! with a slignt spiral twist, high arched, a narrow in- 
rolled depressed apex projecting beyond the base; posterior wall 
concave; aperture regularly oval, margin denticulate, sinus one 
se\enth the length ol iasciole which is continued to the apex as 
; cioo\e, margined by narrow walls and crossed bv bars; colour 
" Itc . sculpture about Icily radial ridges set with beads which, 
c;v joined concentrically by interstitial threads. Length '3.5* 
breadtli 2.7, height 1.7 mm.’ Dredged—Beach,port to Cape Jaffa. 
Ir0-15() jathoms. ( 1 ype locality—Off Cape Jaffa, South Aus- 
tic.lia. 130 fathoms), from A’. ' convex a I lediey 1907, cotypes 
o m Mast Head Island, Queensland,—South Australian examples 
( A. jfinder.si are more spreading, and the radial ribs are fewer 
:i: J u ' c ler apart. A. conrrxa is steeper and narrower. Juveniles 
aie much alike, and A. flindersi does no appear to spread until 
M poiaching maturity. Most ol our shells are a little larger than 
Mu cotrscxa cou pes supplied by Hedlev. 
Hemitoma Swainson 1840 (=Mon for tin Rcclu/. 1843: - 
8/ hone! I a Issel 1869). P^telliform; the fissure not 
u ; ( tnrough the shell, but tnerelv learning an internal groove. 
v ' :m a ^responding external rib running from the middle of the 
!< I 
a 
1)1 wgin. where there is an upward 
hip or the peristome. 
>sf aid Strain so it. 
H. subemarginata Blainvilie 181 > ( A w '/ c/ / australis 
Quoy ix Gaimard 1834: = A. t as manic a Sowerby). PL 1, fig. 10. 
^ eh ovam, conic, inJDted, whitish; sctiltpure coarse, radiating 
r: '" alternating thick, rugose and small; vertex median, obtuse, re¬ 
curved; margin undulating. Sculpture and shape verv variable. 
Length 28. breadth 20, height 18 
^Witer. (I ype locality—A list ra 
K- be'-eh. large dead 
shape very van a 
mm. Gulf St. \ incent, deep 
a). Kdithburgh and Guicher 
