664 
Loc. Corporation Quarry, Maryborougli (i2. L. Jack ; G. Sweet — Colin. Sweet, 
Melbourne ; T. W. JS. David — Colin. David, Sydney). Occurs also in tbe Eolling 
Downs Beds. 
Maccotella eeplecta, Moore, sp. 
PI. 23, figs. 3-7 and 10 ; ? figs. 1 and 2. 
Avicu/a refiecta, Moore, Quart. Journ. Geol. Soc., 1870, xxvi., p. 246, t. 12, f. 1. 
,, Barklyl, var. reflecta, Ten. Woods, Proc. Linn. Soc. N. S. Wales, 1883, viii., Pfc. 2, p. 240, t. 12, 
figs. 4-0. 
Ols. This species is described under the head of “ Eolling Downs,” to which 
the Reader is referred.* It has been found in the Desert Sandstone at the following 
locality : — 
Loc. Isis Eiver, near Maryborough and Bundaberg Road (W. H. Bands). 
Occurs also in the Rolling Downs Beds. 
Maccotella ? sttbsteiata, Moore, sp. 
PI. 23, figs. 8 and 9. 
Avicula substriata, Moore, Quart. Journ. Geol. Soc., 1870, xxvi., p. 247, t. 11, f. 6. 
Ohs. As in the case of the other species of Maccoyella, this is described amongst 
the Rolling Downs Mollusca.f The shells figured (PI. 23, figs. 8 and 9) are believed 
to appertain to the present species. The reference is chiefly made on account of the 
extended posterior wing, but this is accompanied by a peculiar elevation of the hinge or 
dorsal margin at its outward termination. The specimen is in a poor state of preserva- 
tion, so that a definite opinion may be for the present held over. 
Both figs. 8 and 9 occur in close contiguity on the same piece of matrix, and 
are probably the right and left valves of the same species. They are but casts. Pig. 9 
is a convex valve, and more or less oblique, bearing thirteen or more strong ribs. 
The cardinal margin is long, and produced upwards, forming with the posterior end 
a high elevated wing. The whole length of the cardinal margin is bordered by a 
small longitudinally grooved area, not shown in the figure. The subject of fig. 8 
is a flatter valve than fig 9, with finer and much more numerous ribs, and in addition 
interpolated riblets, with the interspaces cross-striated. 
Loc. Maryborough {B. L. Jack). Occurs also in the Eolling Downs Beds. 
Maccotella ? umbonalis, Moore, sp. 
PI, 23, fig. 4. 
Avicula umbonalis, Moore, Quart. Journ. Geol. Soo., 1870, xxvi., p. 246, t. 12, figs. 2 and 3. 
Ohs. This species is fully described under the head of “ Rolling Downs,” to 
which the Reader is referred. J 
I have not seen a perfect specimen of this species, but Mr. Rands has collected 
a large bivalve at Maryborough which has some resemblance to Moore’s figure. It is 
transversely ovate, with an obtuse umbo, and a sharp, incurved beak. A large number 
of radiating ribs were present, some being larger and more determinate than the others. 
Loc. and Horizon. Corporation Quarries, Maryborough (JV. H. Bands; G. 
Sweet — Colin. Sweet, Melbourne) ; Wharf Railway, Maryborough {W. H. Bands). 
Occurs also in the Rolling Downs Beds. 
* See p. 457, PI. 23, figs. 1, 2, 3-7, and 10. 
t See p. 459, PI. 22, fig. 10. 
t See p. 458, PI. 22, figs. 6 and 7, 
