250 Canadian Record of Science. 
Middle piece of the head shield subquadrate, rounded in 
front. Anterior margin greatly depressed, and bordered 
by an inconspicuous fold, front area very wide and long. 
Glabella cylindrical, somewhat expanded and curved down- 
ward in front, faintly impressed at the sides by four pairs 
of furrows, of which the anterior is short and sometimes 
obsolete. Occipital ring convex, curved forward at the 
ends, and separated from the glabella by a strong furrow. 
Fixed cheeks convex, sloped downward at the sides and 
depressed before and behind ; ocular fillet slender, extending 
from the dorsal furrow to the eyelobe, which is moderately 
arched. Dorsal suture directed outward and forward in 
front of the eyelobe, but behind it extends direct to the 
posterior margin. Posterior fold and furrow distinct. 
Thorax of 11+segments; rachis prominent, pleura 
shorter than the ring, obtuse at the ends, crossed by an 
oblique furrow. 
Sculpture. Under the lens this is seen to consist of 
numerous, minute granulations. 
Size. Length of the middle piece measured parallel to 
the axis of the body 11 mm.; measured around the curve 
of the head shield, 14 mm.; width, 14 mm.; Length of the 
movable cheek, 7 mm.; width, 2 mm.; length of asegment 
of the body, 13 mm.; width, 2 mm. 
Horizon and Locality. The gray sand stones of 1, 0, °*, at 
Hanford Brook, St. John Co., N.B. 
A variety, agrauloides has a flatter shield, and an area, 
narrower and less bent downward in front. 
EXLLIPSOCEPHALUS ARTICEPHALUS. Matt. 
Agraulos (?) articephalus. Trans. Roy. Soc. Can., Vol. ILI. 
Sec. IV. p. 75. pl. VII. figs. 14 a& 6. 
Of this species originally described as Agraulos (?) 
articephalus much better examples have been found than 
were known when the species was discovered, and the 
description of the species is here restated.’ 
1 Where the characters are at variance with the original description the words 
are in italics. 
