132 TRANSACTIONS OF THE [MAR. 17 
described. Length across the whorls 9 mm.; width of the last 
whorl 6 mm. 
Horizon and locality. The range has been extended downward 
from the upper part of Assise 3, where it was first found, to 
Assise 2. It is most abundant at the latter horizon, but in- 
frequent in both. 
VOLBORTHELLA, Schmidt. 
Trans. Roy. Soc. Can., vol. vii., sec. iv., p. 156. 
VoOLBORTHELLA TENUIS, Schmidt. Pl. vi., figs. 7 @ and b. 
Trans. Roy. Soc. Can., vol. vii., sec. iv., p. 156, pl. viii., figs. 5, 
a and b. 
The fossils from Band 6, in the northern basin of Cambrian 
rocks are authentic examples of this species ; this would appear 
from typical examples of the Russian species sent me by Dr. F. 
Schmidt, with which the King’s county fossils agree. It is not 
so certain that the tubular shells from the Etcheminian series 
at Hanford Brook are correctly referred here. 
Horizon and locality. Olive grey shales (of Assize 5?) in 
Band b, at Belyea’s Landing, King’s county, N. B. 
OSTRACODA. 
HIPPONICHARION.* 
Trans. Roy. Soc. Can. 1885, vol. iii., p. 64. 
As this genus is one which is readily recognized, it affords a 
useful landmark in the Lower Cambrian,.and the original de- 
scription is quoted here: ‘“ Valves wide, semi-elliptical, subequi- 
lateral ; outer area of the valve, except on the side next the 
hinge; strongly elevated into prominent marginal ridges ; central 
area, including the upper side of the valve, greatly depressed, 
and having an inconspicuous central ridge near the hinge-line ; 
valves nearly equal. 
HIPPoNICHARION EOS PI. vii., figs. 1 @ and e. 
Trans. Roy. Soc. Can., yol. uil., p, 64, pl.-vi., igs. Lao 
and 0b. 
No examples of this species were found in the material exam- 
ined from Assises 2 and 3, and its range is probably confined to 
Assise 1. 
* In allusion to its resemblance to the print of a horse’s hoof. 
