BO ANNALS OF THE QUEENSLAND MUSEUM, No. 6 
in the small fraction of the skull which has so far been revealed, 
the shortness of the muzzle, prompts the suggestion that it might 
well bear the name of Halicore brevirostris. Accompanying 
the skull are part of the centrum of a vertebra and the middle portion 
of a rib, neither of them in any way instructive. 
The Reptilian remains brought to light have been left by turtles 
and crocodiles, the former exemplified by eight pieces of carapaces 
and two of interior bones, all derived from a species of rather 
large size. The largest portion of a carapace preserved is 180 mm. 
long, with a greatest breadth of 120 mm. ; a marginal piece attains 
a thickness of 25 mm. Most of these fragments bear ribs which 
did not nearly reach the outer edges of the test, and therefore 
must have come from something other than the edible and hawksbill 
turtles of the present day. They appear to be all from the same 
species, but from at least two individuals, if we may judge from 
the youthful appearance of three of them. Of the endoskeletal 
bones, one is the anterior portion of that part of the pelvis which 
includes the junction of the ischial and pubic bones. It is not 
dissimilar to, but is of considerably larger size than the corresponding 
piart in Chelone virgata. TJ13 other is a humerus incomplete 
(Plate XII), in certain parts, but affording pretty exact 
measurements of length and breadth, from which it appears that 
it was a slenderer bone than that of either of the living species, 
whence we may infer that the anterior " nipper " was proportion- 
ately longer. Relying on this and on the abbreviation of the ribs 
as distinctive characters, it is proposed to label the chelonian bones 
Chelone murua. 
The Papuan crocodile of the period is partially made 
known to us by dorsal scutes and vertebrae, and more dis- 
tinctly by portions of a mandible (Plate XI). One of the 
latter, a bone which reminds all who see it for the first time of a 
piece of the rostrum of a sawfish, is a part of a mandibular symphysis 
170 mm. long and 35 mm. broad in the middle, with its edges so 
nearly parallel that the difference in breadth at the two ends 
is but 2 mm. The two rami are so intimately conjoined that not 
a vestige of a longitudinal suture can be found anywhere. The lower 
ventral surface, on which are shallow, irregular, longitudinal, 
branching grooves, is slightly convex transversely at the fore end, and 
becomes more and more so caudad. The oral surface is correspond- 
ingly, but to a less extent, concave. On each edge are eight alveoli ; 
in five of these are remains of teeth, exhibiting, in one case, the 
point of a supplanting tooth. The teeth are smooth, subequal 
in size, subcompressed, the long diameter of their oval section 
placed at right angles to the longitudinal axis of the jaw. They 
are directed outwards and forwards at a very open angle, and the 
bases of their sockets are approximate to the mid line of the 
symphysis. Judging from the subhorizontality of the fangs, 
the upward curve of the crowns was but slight. The posterior 
