214 
Sub-Kingdom — AKNULOSA. 
Class — Cbustacea. 
Order-OSTKACODA. 
family— LEPERDITID^. 
Genus— BEYBICHTA, McCoy, 184G. 
(Sil. Foss. Ireland, 1846, p. 67.) 
Beteichia taeicosa, T. B. Jones, sp. nov., PL 7, fig. 15. 
Obs. “An internal cast of a right valve showing three main lohes as in B. 
Kloedeni, hut with differences. Thus the central lobe is nearly isolated; the two outer 
lobes are continuous below, and the hinder lobe is partially intersected from the dorsal 
edge, so that a small but definite supernumerary lobe is almost divided off from its inner 
(medial) ridge. The valve had a strongly flanged lip on its free margin, non-represented 
by a deep sloping furrow, stronger behind than in front. The dorsal and partly the 
anterior edge of the cast are obscured with matrix. Length of the valve two millimetres, 
height one millimetre.” 
On submitting this pretty little Beyrichia to Prof. T. R. Jones, E.R.S., be was 
kind enough to favour mo with the above observations. He believes it to be 
distinct from any species of Beyriolm hitherto published, and it forms a welcome 
addition to the scanty Ostracod fauna, hitherto described from the Upper PalsBOzoic 
rocks of Australia. 
Log. and Sorizon. Corner Creek, Great Star River {B. L. JacB) — Star 
Bods. 
Order-TRILOBITA. 
Eamily— PRCETIDA5. 
Genus— BSILLIPSIA, Bortlooh, 1843. 
(Report Geol. Londonderry, Tyrone, &c., p. 305.) 
PiiiLiiPSiA DtTBiA, Etheridge, sp. 
PI. 7, fig. 12 ; PI. 8, figs. 5 and 6 ; PI. 44, fig 4. 
Griffithidcs duhius, Etheridge, Quart. Journ. Geol. Soc., 1872, xxviii., Pt. 3, p. 338, t. 18, f. 7. 
Sp. Char. Body ovate-oblong, length about twice the width, sides parallel ; 
general axis equal in width to the pleura; ; cephalic shield and pygidium about eqmd m 
length, but .somewhat shorter than the body respectively. Cephalic shield semi-circular, 
with rounded genal angles, anterior border striate ; glabella ovate pyriform, and narrowing 
towards the front, gently convex anteriorly, but rather flattened behind, not in any way 
overhanging the anterior edge of the shield ; basal lobes prominent, rounded, and pea- 
like, deeply cut off by the neck furrow; basal furrows well marked, but the ocular 
furrows faint, oblique, and short, and the frontal furrows invisible ; palpebral lobes but 
faintly developed, and narrow ; free checks elongately triangular, with nearly vertical 
and delicately striate surrounding rim ; eyes moderately long, and rather narrow, bii 
most minutely facetted ; neck furrow behind the glabella broad and deep. Thoracic 
