641 
Order— AECACEl. 
Pamily — ARCID^. 
Genus— ANOMALOOABBIA, Klein, 1753. 
(Tentamen Meth. Ostraool.) 
Anomalocakdia teapezia, DesJiayes, PI. 36, figs. 10-12. 
Area trapezia, Deshayes, Mag. Zool. 
„ lobaia, Reeve, Coticb. Icon. (Men. Area), 1844, ii., Sp. 19, t. 3, f. 19. 
Anomalocardia trapezia, Angas, Proc. Zool. Soc., 1867, p. 931. 
Sp. Ohar. Shell ohliquely-rhomboid, much produced posteriorly, and post- 
ventrally, gibbous and prominent in the umhonal region ; test solid, inner margins 
strongly toothed. Hinge-line shorter than the width of the shell-area, which is elongately 
triangular, with two to four or five caidilage grooves, and transversely striate ; teeth 
about forty-five in full-grown specimens ; umhonal region convex and gibbous, pro- 
jecting upwards much above the hinge-line ; umbones anteally incurved. Anterior ends 
small, the margins obliquely rounded, insensibly passing into the ventral, which is 
similar; posterior sides variable in their proportions, sometimes abruptly sub-truncate, 
at others becoming expanded and rather flattened, with an obliquely elevated hinge- 
line, their margins rounded ventrally, and obliquely truncated more or less dorsally ; 
muscular impressions strongly marked. Surface with numerous strong radiating ridges 
or cost®, quite two-thirds of which are inclined towards the posterior, and becoming 
much flattened on the posterior slope, crossed by concentric frillings, and rising on the 
costsB into echinations. 
Ohs. Amongst an abundance of this species is a shortened and very gibbous 
variety, with high elevated umbones, and greatly produced in a posterior ventral 
direction (PI. 36, figs. 11 and 12), and in which the marginal crenulations are also very 
strong. 
Reeve gives the locality of this common Australian shell wrong, as he does in so 
many other cases — viz., the West Indies. The Jfational Collection in London contains 
numerous examples from the Brisbane AVater, which entirely correspond with the fossil. 
Log. and Horizon. Child’s Vineyard, Nudgee, about nine miles from Brisbane 
(B. L. Jacle) — Estuarine Beds (Raised-beach). 
Order— TENERACEA. 
Eamily — CYRENID.®. 
Qemts — COBBIOULA, Meyerle, 1811. 
(Berlin. Magazin, 1811, p. 56.) 
COEBICUEA NEPEANENSIS, leSSOn. 
Cyelas NepeanensU, Lesson, Voy. Coquille, Zoologie, 1830, u.i p. 428, Atlas, t. 13, f. 14, g-n. 
Cyrena Australis, Beshayea, Eacyclox*. Method., 1830, Vers, ii., No. 12, p, 60. 
Coriieula Australis, Deshay es. Cat. Couohif. Brit. Mus., 1854, p. 230. 
„ Daintree, Quart. Joum. Geol. Soc., 1872, xxviii., p. 274. 
,, Smith, Journ. Linn. Soc. (Zool.), 1883, xvi., p. 300, 1. 17, f. 26 and 27. 
Ohs. This is probably the shell cited by the late Mr. Richard Daintree as 
occurring with Biprotodon remains at Maryvale Creek. The specimens of these 
freshwater shells are not forthcoming now, which is to be regretted, because fresh 
comparisons would have been advantageous. 
Log. and Horizon. Maryvale Creek, Clarke River, North Queensland {The late 
B. Daintree) — Diprotodon-breccia. 
2 B 
