TEE CAMBRIAN FAUNAS OF NORTE-EASTERN AUSTRALIA. 
121 
segments of the pygidium is constantly shown, even though it is faint in the 
adult — this furrow seems to be eliminated in D. pergranosa. Furthermore there 
seems to be no trace of the faint oblique grooves on the crests of the lateral 
pygidial ribs in the latter form 3 . D. matsushitai differs slightly in the outline 
of the pygidium. 
Locality : From beds about four miles east of Douglas Creek on the old 
Burketown road. (This locality is about three-quarters of a mile west of the 
type locality for Anomocare confertum ) . 
DORYPYGE CORUSCA sp. nov. 
(PI. XI, figs. 8-13.) 
Diagnosis : Cranidium and pygidium ornamented with very fine, closely 
set granules, similar in number and grouping to those of C. tenella. 
The cranidium is rhomboidal in outline with subangular front. The 
glabella is subovate, reaching almost to the anterior margin of the head, the 
sides converging slightly in the anterior 
region; the axial furrow has a pair of pits 
at the anterior angles ; the occipital ring 
bears a prominent, hollow spine. The fixed 
cheeks are narrow (a little less than one-half 
of the width of the glabella in the- central 
region) ; the palpebral lobes are long and 
only slightly curved. The anterior limbs of 
the facial sutures converge slightly, the 
posterior limbs are oblique. 
The pygidium is subtriangular in outline. 
The axis has five segments and there are five 
pairs of lateral ribs that have shallow, 
oblique furrows on their crests. The last 
transverse furrow in the axis is not well 
defined. There are six pairs of marginal 
spines, the posterior (sixth) pair being very 
small, the others long. The fifth pair of 
spines are thicker than the others. 
No other parts of the test are known. 
Remarks: The material examined consists of fragments of five heads 
and nine tails. 
The species is most similar to D. tenella the chief distinguishing features 
being the more ovate glabella, the converging facial sutures, the wider axis of 
the pygidium and the more prominent furrowing of the’ crests of the pygidial 
ribs. In these features the species approaches D. richthofeni but it lacks the 
glabellar furrows. 
3 That is, judging from the figures. The specific descriptions by Resser and Endo are 
very meagre. 
