MEMOIRS OF THE QUEENSLAND MUSEUM, Vol. X, Part IV. 
TERTIARY FRESH WATER FISHES FROM 
SOUTHERN QUEENSLAND. 
By Edwin Sherbon Hills, Ph. D. 
(Plates XVIII— XXV ; Text-figures 1-14.) 
Introduction. — Fossil fishes have for a number of years been known 
to occur in Southern Queensland, in freshwater deposits which, with some 
reservations, are generally considered to be Tertiary (see Jones, 1926). No 
detailed account of them has, however, previously appeared, and interest attaches 
both to the recognition of the fossil species, as representatives of a former 
piscine fauna in Queensland, and to the possibility of their yielding more 
precise information as to the age of the beds in which they occur. 
The bulk — 39 specimens — of the material described below was collected 
by Dr. F. W. Whitehouse at Redbank Plains, from the two adjacent properties, 
Portion 172, Parish of Bundamba and Portion 37, Parish of Stapylton. In 
addition there are three fragments from Cooper’s Plains, also collected by Dr. 
Whitehouse, one from a well in the Parish of Bundamba, and some crushed 
fragments from oil shales near Brisbane collected by Mr. L. C. Ball. I have 
also examined a specimen from Redbank Plains in the British Museum (Nat. 
Hist.), London, as well as two specimens from the same locality lent to me by 
the Geological Survey of Queensland. The present communication is therefore 
essentially a description of the fishes of the Redbank Plains Series. I have 
not seen the remains recorded by Dunstan (1901 ; 1916) from the Duaringa 
district, nor the Ceratodont tooth from Eight Mile Plains recorded by Jack and 
Etheridge as Ceratodus forsteri (1892, pp. 647, 740), these being the only other 
recorded examples of (?) Tertiary fresh- water fish in Queensland. David’s 
reference (1932, Table I — Upper Oligocene) to the occurrence of “ numerous 
fossil lish (. Epiceratodus , etc.)” in the Oxley district refers doubtless to Redbank 
Plains. At Nimbin, in Northern New South Wales, there are freshwater 
carbonaceous shales presumably of Tertiary age, from which Smith Woodward 
(1902) has recorded Ctenolates avus Woodward, the only other record of a 
freshwater fish from the Tertiary of Australia known to me. 
Systematic Descriptions. 
Subclass DIPNEUSTI. 
Order Sirenoidei. 
Family CERATODONTIDiE. 
Genus EPICERATODUS TELLER, 1891. 
EPICERATODUS DENTICULATUS sp. nov. 
(Text -figures ] and 2.) 
