447 
to be regretted that no exteriors have been seen. There is a general resemblance to 
Moore’s P. socialis, but the details of the latter are so little known that a satisfactory 
comparison cannot be made. 
Loc. Ararnac {The late J. Smith) ; Eockwood Station, Landsborough Eiver 
{It. L. Jack). 
Oenus — AMUSIUM, Klein, 1763. 
(Tent. Meth. Ostr.) 
AMrsiTTM, sp. incl., PI. 21, figs. 4 and 4a. 
[Compare Amuslum sulcatellum, Stoliozka, Pal. Indica, 1871, iii., Pts. 9-13, p. 43G, t. 31, figs. 12, 12fl, and 17.] 
Ols. We have but the ears and umbonal portion of a single valve to represent 
this genus. It has a general resemblance to the above species, but the apical angle 
differs. The hinge-line is not q^uite horizontal, but has an inclination to an upward 
deflection after the manner of the genus Entolium. The surface of the valve is a good 
deal decorticated, but there are traces of fine regular concentric lines, as shown in the 
enlarged figure. The umbo was small and acute. 
Loc. Eockwood Station, Landsborough Eiver {B. L. Jack). 
Pamily— LIMID^. 
Genus — LIMA, Brucjidere, 1789. 
(Tab. Encycl. Method., PI. 206.) 
Lima Gobdoxi, Moore, PI. 24, fig. IG. 
Lima Oordoni, Moore, Quart. Journ. Geol. Soc., 1870, x.'ivi., p. 247, t. 12, f. 4. 
Sp. Char. Shell ovately oblong, inequilateral, oblique, thin, with about fifteen 
to seventeen rounded costae, which become obsolete on the posterior side, and with 
many concentric close-set but distinct lines of growth ; hinge-line narrow and straight, 
posterior side rounded, anterior oblique ; ventral margin rounded. {Moore.) 
Ohs. Ca.sts of this species are stated to be common. In critically examining 
Lima. Gordoni, comparison should be made with Lima imaomsis, P. Eoemer,* from the 
Chalk of Texas, which is very close to the present species, and appears to be intermediate 
between it and Lima Ttandsi. In the Texan fossil the ears are small and plain without 
costte, whilst the eostre on the body of the shell are simple with very few exceptions. 
Another species to which the present is allied is Lima alternans, P. A. Eoemer, f 
of the North German Oolite, but the rib.s are less in number than in the former. 
Amongst British species Lima Gordoni is related to Lima semicireularis, Goldf., and 
Lima duplicata, Sby. The outline is similar, but both species have more numerous ribs, 
and much too close together for our species. 
Loc. Wollumhilla {The late Rev. W. B. Clarke). 
Lima? BBAAMBUitiEtfsia {Shy.), TMllips?, PI. 21, fig. 12. 
.^ricula hraamhuriensis, Moore, Qu.irt. Journ. Geol. Soc., 1870, xxvi., p. 240, t. 11, f. 5. 
Ohs. Mr. Moore figured a fragment of a shell under the above name, and it is 
to be presumed that when using it ho had in view the species so named at various times 
Sowerby or Phillips. No description was given, but it appears absolutely certain 
that the Australian shell figured by Moore is not the species he imagined it to be. 
* Kreidebild. Texas, 18.52, p. 63, t. 8, f. 7« and h. 
+ Verst. Nord. Ool.-Gebirges, 1836, t. 12, f. 10. 
