s 
Aviculopecten squamuliferus, Morris, sj^. 
(Plate T, Fig. 1; P). TT, Figs. 4 and 5; PI. VTTT, Fig. 4.) 
Fecten squamuliferus , Morris, Strzelecki’s Pliys. Descri];.. N. >S. AVales, lire., 1845, \\ 278, 
t. 14, f. 1. 
Observations. — The original description is quite insufficient for the 
recognition of this species, and were it not for the figure, it would he neces- 
sary to relegate the name to the rejectamenta. Morris’ illustration is the 
only one vve know of, unless the following name is identical 
1. Aviculopecten mnltiradiatus, Etheridge.’ — Erom the imperfect 
condition of the subject of the late Mr. Etheridge’s figure, a reference of 
this nature cannot he looked on as more than a suggestion, hut we think it 
possible that it and Morris’ specimen may have been specifically identical ; 
the type is lost. 
AVe are not able to add many details to the original description of A. 
squamuliferus as we have before us only four examples of the convex valve, 
all impressions of the exterior, and none perfect. The orbicular valve was 
oruamented with a very large number of rounded costaB, at least forty-six 
in one and sixty in another example, irregularly spaced, and similarly 
arranged as to size. There may be a run of consecutive primary costm, or 
the latter may be separated by an occasional interpolated secondary costa, or 
again, these may follow one another in regular succession between the primary 
radii. The anterior auricle is fairly large and triangular, the outer margin 
rounded, and with numerous (six to eight) radiating costte, sometimes bifur- 
cate ; a well-marked byssal sinus separates it from the body of the valve. 
The posterior auricle is to all intents and purposes as large as the anterior, 
obliquely truncate along the outer margin, and similarly radiate. Morris 
says the costie are “ imbricated with small scales,” hut to us this appears to 
be a very close continuous concentric lamination or frill imbrication across 
both costae and intercostal spaces, equally well marked both on the auricles 
and the valves proper. iNothing is known of the other valve, nor of the 
hinge-plate. 
Localities and Horizon. — Earley {J. fF uterhouse) ; Eavensfield {J. 
If'aterhouse) \ Iluon Road, Tasmania ; Pokolbin A. Snssmilch). — Permo- 
Carboniferous — Lower Marine Series. 
Collections. — Mining and Geological Museum, Australian and 
Technical College (Geological Dept.) Museums. 
* Etheridge — Quart. Journ. Geol. Soc., 1872, XXVIII, p. 327, t. 13, f. 1. 
