310° PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. 9, 
chus, should be noticed in all the species of Conosmilia. The con- 
tinuation of the septa and cost is likewise wanting in some Liassic 
Montlivaltixe, and in many simple Rugosa. The importance of the 
Conosmilie can hardly be estimated at present; but it is evident they 
are very synthetic forms, occurring late in the coral faunas of the 
world. The genus Haplophyllia, Pourtales, whose solitary species 
were dredged in 324 fathoms off the Florida reef, has a styliform 
columella and an octomeral arrangement of the septa. There are 
no endothecal dissepiments. 
Antilia lens is a discoid form, representing the discoid Montli- 
valtie in this genus, which differs from that celebrated Mesozoic one 
by having a distinct columella. The genus is well represented in 
the West-Indian Miocene; and there are fossil species in the Arabian, 
Sindhian and Travancore Miocene. I have lately seen a recent An- 
tillia from Batavia. Nevertheless A. Jens is the only discoid form, 
and is very beautiful and characteristic. 
The eight new species of Balanophyllia, and that already known as 
a form from the Miocene of Tortona, give a very Falunian and Crag 
facies to the Australian corals as a whole, especially as there are no 
recent species known in the seas around. ‘There are recent species in 
the Philippines and close to the American continent at Panama; but 
they are not amongst those found in the Australian tertiaries. 
Forming a large proportion of the fossil fauna, the Balanophyllie 
stamp the deposits with a definite character as regards the depth at 
which they occurred; and this is rendered almost certain by the 
bathymetrical disposition of the genera Caryophyllia, Flabellum, 
Placotrochus, Sphenotrochus, and Amphihelia. The northernmost 
Faluns contain vast quantities of Balanophyllice (not of species), a Fla- 
bellum and Sphenotrochi; and there, as in the Australian Tertiaries, 
every gradation of sea-depth, from the abyss to low spring-tide mark, 
is represented by species. 
The Australian Balanophyliie are as peculiar as most of the other 
corals, and are very characteristic. I cannot distinguish between 
one form and B. ttalica, a well-known Italian Miocene species. 
VI. Locaxtries. 
The strata numbered No. 1 by Mr. Selwyn, and which are 13 mile 
west of Cape Otway, contain :— 
Flabellum distinctum, Edw. g H. Hesnephy? cylindrica, Michel. sp., 
Conotrochus M‘Coyi, Duncan. 
Deltocyathus italicus, Edw. § H., var. | 
Bed No. 3, of the Upper “ Coralline oe ae Otway, con- 
tains :-— 
Ampbhihelia incrustans, Duncan. | Balanophyllia Selwyni, Duncan. 
No. 4, Clay bed near Cape Otway, with Trigonia semiundulata, 
contains :— 
Flabellum gambierense, Duncan. Placotrochus elongatus, Duncan, — 
distinctum, Edw. & H. Balanophyllia campanulata, Duncan. 
