190 UECOUDS OF THE AUSIKALIAX MUSEL^M. 



XXX., fig. 7) and accept this in preference to the figure cited, which, I 

 regret to say, is most misleading in that the cardinal, or dorsal, line is not 

 arcuate, or inclined, but straight as in StatcJihuria proper. The antei'ior 

 end does not tei-minate just before the adductor scar, but extends some way 

 still forwards ; the flanks are not cinctured as the figure shading would 

 indicate, and the radii are distinctly visible extending over two thirds of 

 the surface; so far as I can see the shell was edentulous as in Stntchburia. 

 As regards Dana's Fig. ba I make no comment. 



Loc. — " Illawarra." 



2. [^Cardinia /] cunedta, Dana. — In this instance the illustrations 

 and type casts are strictly in accord with one-another. Several casts are 

 in the collection (PL xxx., figs. 4-6) similar in all features to Dana's 

 description and figures, compressed valves, arcuate dorsal margins and nasute 

 posterior ends, but with radiate sculpture, which, according to Dana, was 

 not present on his specimens (PI. xxx., fig. 3) ; this is borne out by the 

 replicas before me. I am unable to explain this discrepancy, for there 

 can hardly be two forms, otherwise exactly alike, and differing only in the 

 one feature. Although the hinge was edentulous [('. f] cuneata can hardly 

 be placed in Stntchburia, or at any rate only provisionally. 



Loc. — Wollongong, Illawarra District (W. S. Dim). 



Hor. — Upper Marine Series. 



3. Solecartus (.'') elliptirus, Dana. — Provided the replica is a faithful 

 reproduction of the original, the latter can only be regarded as a meaning- 

 less impression without character or structure ; the name may be struck 

 off the list of our Permo-Carboniferous fossils. 



4. Solecurtus planiilatus, Dana. — Drawn from a featureless impression 

 as represented by the replica ; another name to be deleted. 



5. [_Cijprii-ardiii'\ simjile.v, Dana. — Already referred to Stxtchhuria. 



6. l_C'ypn'('ar(]i(i^ prcvrnpta, Dana. — In the absence of any negative 

 characters, I tentatively refer this to Stutchhurla. Dana described the 

 anterior adductor scars as circular, but they appear to be much more of 

 the " leg of mutton " shape, so characteristic of the foregoing genus. The 

 published figure is much too lithodomoid, and the ventral margin is not 

 inflected as shown in the illustration. 



Loc. — " Illawarra." 



7. \_Cy2)rlcardia'\ ucutifroiis, Dana. — The figures are again most 

 misleading in that the anterior ends in the replica do not terminate in 

 acute prolongations, the antero-ventral margins are not inflected to 

 the degree represented, and the actual margins of the united valves and 

 therefore the true outlines are not preserved. The species is again 

 referred to on a succeeding page. 



Loc. — " Illawarra." 



8. {^Oypricardiii^ iinhrlnitn, Dana. — As a representation of the orig- 

 inalj^i^ portions of the two valves united, this figure is also erroneous. It 

 is less perfect than represented, the concentric sculpture rendered far too 



2* Dana — Loc. cit., pi. viii., fig. 5. 



