160 MEMOIRS OF THE QUEENSLAND MUSEUM. 
not the exception. From E. pattinsonae the species is distinguished principally 
by the possession of narrower comb ridges, of a stouter first comb ridge on the 
splenial plate, and by the fact that the valley separating the first from the 
second comb ridge on the palatine tooth is shorter than the others in E. 
pattinsonae , while this is not the case in E. denticulatus. The distinctions from 
the other known species may be gathered from the Table given above. 
Sufficient is not yet known of the anatomy of fossil Ceratodontkke to clearly 
indicate genetic affinities, and it is to be hoped that further material will be 
obtained from Redbank Plains, where parts other than the teeth are found in 
a good state of preservation. 
Super Order TELEOSTEI. 
Order Isospondyli. 
Family OSTEOGLOSSIDJE. 
Genus PHAREODUS LEIDY, 1873. 
PHAREODUS QUEENSLANDICUS sp. nov. 
(Plates XVIII-XIX ; Text-figures 3-7.) 
Localities. — Redbank Plains and Cooper’s Plains. 
Material. — [RP/B]. Thirteen specimens preserved as moulds in con- 
cretionary limonitic mudstone. Holotype, No. 7, a, b. 
[CP/BJ. Two specimens preserved as moulds in clay shale. 
Description. — Moderately large fishes, estimated maximum known length 
about 0-5 metres. The body is less elongated than any of the living genera, 
resembling that of P. acutus Leidy, although not so deep or so blunt -snouted. 
The dorsal and anal fins are opposed, the dorsal somewhat shorter than the 
anal. The caudal is probably slightly excavated. The first pectoral ray is 
enormously elongated, reaching back beyond the pelvics, which are small and 
approximately mid- ventral . 
The exact number of vertebrae is uncertain, but there are approximately 
23 abdominal and 26 caudal, the last three, possibly four, being turned up 
into the tail. The vertebrae are ossified radially into strong longitudinal 
laminae. There are short parapophyses, which diminish in size anteriorly, on 
the posterior abdominal vertebrae. The neural spines are expanded at their 
bases into laminae in the median plane. Epineurals are present, but no 
epipleurals. The ribs are long and stout. 
The anal fin is composed of 26 jointed rays, each supported by a baseost, 
and there are two or three anterior spines. The dorsal has probably about 
19 jointed rays, and, by analogy with the anal and with P. acutus, probably 
one or more small anterior spines. Each ray corresponds to a baseost. The 
