443 
to the dorsal valvo ; it possesses a deep sinus corresponding to the depression in the 
interior of the large valves; edges of the shell closely fitting ; internal loop not known. 
Shell structure very finely punctate. {Moore.) 
Obs. This interesting shell is found with the Purmpbonia and other remains at 
Wollinnhilla, and as there are evidenco.s of several more or loss perfect examples in the 
block, it must be an abundant shell. It belongs to the group originally arranged by 
Dr. E. Deslouchainps under Argiope, of which he described three species from the 
Lias, but which in his “ Palaeontologie h'ran^aise ” he subsequently removed to 
Terebratula. Having found the same species at Whatley', and referred them to Ar^iope, 
I think it convenient still to retain them in this group, though ultimately it is probable 
they may have to be separated from it and constituted a sub-genus. At present little is 
inow'u - of their loops or internal chai’acters. The Australian examples are more 
regularly striate than the European Liassic species. Where the strite on the A. 
loollumhillwnsis are occasionally abraded, a canal is visible, which leads me to suspect 
they were originally hollow', and probably continued in spines beyond the shell, like those 
On Atliyris or Spirifem rostrata. In its outer form this shell very much resembles 
some of the Strophomenidsc. {Moore!) 
In another portion of his Paper Mr. Moore again remarked — “ The peculiar 
form of these shells, their long hinge-lines, compressed valves, and finely folded or 
plicated exteriors, even in ignorance of the internal form of the loop, are, I think, 
sufficient to justify their arrangement eventually under a new genus or sub-genus.” 
In Mr. Sw'eet’s example the fold and sinus are very marked features. The 
exterior of the shell was rugged. 
Loc. Wollumbilla {The late Eev. TP. P. Clarhe ; G. Siveet — Colin. Sweet, 
Melbourne) . 
Argiope? punctata, Moore, PL 20, fig. 12. 
■'trgiopc punctata, Moore, Quart. Journ. Geol. Soc., 1870, xxvi., Pt. 2, p. 244, t, 10, f. 6. 
Sp. Char. Shell small, transversely ovate ; dorsal valve flattened or slightly 
convex; margins regularly rounded; surface of valve with bifurcating longitudinal 
stria3, which at the front are thirty in number. {Moore.) 
Ohs. This shell clearly indicates the presence of a second species of the group. 
Only one valve is known, and this is not perfect. The striae .are much more distant, 
^tnd stand up in sharp ridges, and the punctations are much coarser and fewer than on 
the A. loollimbillcEnsis. In these respects the species approaches nearer to the Erench 
iind English examples. The specimen^is attached to the surface of a Serpula intestinalis. 
{Moore.) 
Loc. Wollumbilla {The late Eev. W. B. Clarke). 
Family— EHYNCHONELLIDiE. 
Genus — BJUTNGPLONTjLLA, Pischer, 1809. 
(Notice Foss. Gouv. Moscou, p. 35.) 
Ehynciionella rustica, Moore, PI. 20, fig. 13. 
^^’■ynchonclla rustica, Moore, Quart. Jouru. Geol. Soc., 1870, xxvi., Pt. 2, p. 245, t. 10, f. 7-9. 
Sp. Char. Shell variable, usually wider than long, beak acute ; when young coin- 
pTessed, with both valves slightly convex, without sinus, and margins rounded ; tvith age 
tie shell is furnished with a broad sinus in the ventral, with a corresponding convexity 
or mesial fold in the dorsal valve ; surface covered with strife, from twenty to twenty-five 
in number, which in the adult shell arc somewhat wavy or irregular. {Moore.) 
