390 
by the labours of Mr. C. D. Walcott. So far as the 
ong, narrow, and sharp; or the spines in question 
attached to the sides of the pleural lobes, appertain to 
Crepicephalus 1 
Loc.—Dolodr ook "ideft vent Wellington District, 
Mauer Victoria (Chapm 
—‘‘Agnostus zone,’ Gasper Cambrian (Chapman). 
CREPICEPHALUS TASMANICUS, Eth. fil. 
SE er Kariste Ps fil.: Proc. Roy. Soc. Tas., 
1882 (1883), p. 155, pl. i., fig. 
(?) Conocephalites LES oe Eth. fil.: Loc. cit.. p. 153, pl. i; 
gs. 
P 
cephalon I ‘dower ibed at the same time as ’ Conocephalites 
8 
associate themselves with the “Conocephalites’’ ea 
other than the “Dikelocephalus” tail, or vice-versa. I sail 
therefore, only conclude they are one ‘and the same 
e cephalon called C. stephensi was, I b elieve, one of 
the first, if not the first, Cambrian Trilobite portion to be 
described - in -detail from Australasi 3 
| Loc.—Caroline Creek, near Daioh: Tasmania (T. 
pap 
or.—Potsdam Sandstone or pret Flags M vues Un , 
!cDikelocephslun Group" (R. M. Johnston); 
brian (L. K. Ward); Cambrian (Etherid e 
Genus NoTASAPHUS, Gregory, 1 
(Proc. Roy. Soc. Vict., xv. (n.s.), pt. ii., 108. p. 155). 
NorASAPHUS FERGUSONI, Gregory. 
N. fergusoni. Gregory: Loc. cit., p. 155, pl. xxvi., figs. 11-13. 
T .Obs.—The cephalon of V atasá phus, so far as known to 
. "S, is certainly distinct from that of Dinesus, but if the ed 
ea representation of the fossil, it is very difficult 
