385 
front, which is broadly rounded; glabella furrows in two 
pairs, the first pair all but circumscribing the basal lobes; 
apparently wide. Surface minutely granular. 
Obs.—The replicas do not display any traces of the facial 
spread from it to the anterior border of the glabella.” The 
space occupied by an eye ‘‘on the anterior half of the head," 
as well as that by the oblique striae, — to me merely 
as fractured matrix surfaces. 
Loc.—Yorke Peninsula, South Australia diy iei dr 
coe! —Parara Limestone, Lower Silurian (Woodward) ; 
r Cambrian (Tate); Upper Cambrian (Howchin) ; Cam- 
brian. (Etheridge). 
PrvcHoPARIA (?) nowcniwr, Eth. fil. 
7. 
PL x3 Bg. 
"à est won Eth. fil.: Trans. Roy. Soc. S. Austr., xxii., 1888, 
Obs At the time I described this imperfect céphalon 
I compared it with Woodward's ‘‘Conocephalites australis," 
but relying on the supposed accuracy of the figures given, 
believed them to be distinct. I now find the general aspect 
of the glabella of P. howchini to so closely resemble that of 
the replicas of Woodward's species that suspicion is raised of 
the identity of the two; but like so many other r questions con- 
nected with these Cambrian Trilobites, les possibility must 
remain in that sense only for the prese 
oc.—Ardrossan, North-east Yorke Pond (Howchin). 
Hor.—Lower Cambrian, or ‘‘Olenellus Group" (Tate); 
Upper Cambrian (Howchin) ; Cgmbrian (Rtheridge). 
PrycHOPARIA ALROIENSIS, n. sp. 
8 
OE, fe. 8. 
pe eun. Anon.: Bull N. Territory, No. 14, 1910, 
pls. "^ and i 
meti Av ined. or ocular dre. situated just in AA 
of t anterior pair of glabella furrows, anterior limb like the 
