196 Prof. M‘Coy on the Recent Zoology 
argillaceous and sandy rock, containing two large species of 
Inoceramus (I. Carsoni and I, Sutherlandi, M‘Coy), so nearly 
agreeing in size and shape with the English Cretaceous J. myti- 
loides (Sow.) and the English and French I. Cuviert respectively, 
that at first sight they might be readily confounded. With 
these are two species of Ammonites, one (A. Flindersi, M‘Coy) 
so closely agreeing in size, number of whorls, shape, markings, 
and septa with the common Ammonites Beudanti (Br.) of the 
French Lower Chalk, that, except for being slightly less com- 
pressed and a slight difference in some of the septal lobes, it 
could scarcely be separated, even as a variety. 
With these is a Belemnite (Belemnitella diptycha, M‘Coy) so 
exactly like in size and shape the B. plena of the English and 
French Lower Cretaceous rocks that they can only be distin- 
guished by a slight difference in the distance of the two great 
longitudinal furrows. 
The most wonderful occurrence which I am able to announce 
along with those molluscan forms are three new species of 
Enaliosaurian reptiles of Cretaceous genera, and most nearly 
allied to cretacean European species. One of these is an Jchthyo- 
saurus (I. australis, M‘Coy), of which I have recognized a large 
number of vertebre, the large skull, with the eye and its bony 
sclerotic ring perfectly preserved, and part of one of the paddles. 
The other two are species of Plesiosaurus,—one (P. macrospon- 
dylus, M‘Coy) differing from the nearest known species in the 
greater proportional length of the bodies of the vertebra, and 
the other (P. Sutherlandi, M‘Coy) more nearly approaching the 
pres proportions of the genus and the New-Zealand species 
of Owen. 
LOWER MESOZOIC. 
The coal-bearing rocks of Victoria belong, I have no doubt, 
to the Mesozoic period, from the characteristic plants being such 
as are found with the Mesozoic coal in Yorkshire, Germany, &c., 
and from the total absence of all the genera characteristic of the 
Paleozoic coal. At Cape Paterson and Bellerine we find in the 
shales alternating with the coal three well-marked species of 
Zamites (Z. ellipticus and Z. Barklyi, M‘Coy, and a rarer spe- 
cies, Z. longifolius, M‘Coy, which I have seen from the N.S.W, 
beds), a Teniopteris (T. Daintrei, M‘Coy) of the size and shape 
of the 7. vittata of the English Oolitic coal-beds, but differing 
in the number of transverse veins in a given space, and the 
Phyllotheca australis, identical with the New-South- Wales coal- 
—— ee a 
species. The association of these genera alone would indicate: 
the beds to be Mesozoic and not Paleozoic with certainty ; but 
the association of the same plants with other species in other 
