TERTIARY FRESH WATER FISHES FROM SOUTHERN QUEENSLAND. 159 
Table I. — The Species of Epiceratodus. 
Species. 
Age. 
No. of 
Combs. 
Denticles. 
Size. 
Remarks. 
E. forsteri (Krefft) 1870 
Pleist. — 
Recent 
(5)-7 
- 
Medium 
Living 
E . palmeri (Krefft) 1874 
Pleist. 
(?) 
- 
Large 
Teeth only known 
E. gregoryi White, 1925 
Pleist. 
7-8 
- 
Large 
Teeth only known 
E. eyrensis White, 1925 
Pleist. 
7-8 
+ 
Medium 
Teeth only known 
E. pattinsonae White, 1926 
Upper 
Cret. 
6 
— 
Medium 
Palatine tooth only 
known 
E. denticulatus sp. nov. 
Oligo. 
5-(6) 
+ 
Small 
Teeth and other skeletal 
parts known 
Text-figure 2. — Epiceratodus denticulatus sp. nov. Specimen in the British Museum x J. 
ax, axonosts ; ba, baseosts ; de, dermatrichia ; n. a., neural and haemal arches. 
Remarks. E. denticulatus is very close to E. forsteri . The presence or 
absence of denticles on the comb ridges is considered by Peyer (1925, p. 13) 
not to be a feature of classificatory importance, as they may be present or not, 
m what is regarded as the same species. Such is the case with C. africanus 
Haug, and C. runcinatus Plieninger. In E. forsteri, however, although the 
outer edges of the combs are somewhat serrated, no well-defined denticles are 
present. With regard to the number of comb ridges, Longman (1928) has 
recorded an aberrant example of E. forsteri possessing only five, but the 
possibilities are that in E, denticulatus the smaller number was the rule, and 
