I lO 
BULLETIN OF THE LABORATORIES 
a broad ^ flat^ anterior border^ with no arching in the middle^ and with al- 
most parallel facial sutm'es anterior to the eyes. It will be made the ob- 
ject of future study. 
Locality and position. Soldiers’ Home Quarries, Clinton Group ; 
not rare. 
VII. Calymene Blumenbachii ? Brongniart. 
{Plate XIII, Fig. 25.) 
General form broadly oblong. 
Cephalic shield short and broad, the width twice as great as the 
length. Glabella quite prominent, projecting above the rest of the 
head; its general form, including the lateral lobes, conical, widest across 
the posterior lobes, the width at this point slightly more than its length 
excluding the occipital ring, and only four-fifths its length including 
the same. Glabella supplied with three more or less distinct lobes 
laterally, the posterior lobes large and prominent, equal in elevation to 
the glabella between them, although they seem to rise above, it, on ac- 
count of its downward slope posteriorly; the middle pair of lobes 
about half their size, the anterior pair small, indistinct. The middle 
and posterior pairs of lobes separated from themselves by deep grooves, 
from the glabella by grooves becoming shallow at the point of union 
of the lobes with the glabella, and from the cheeks by grooves of less 
depth, becoming shallow at the middle lobe ; a slight groove anterior 
to the occipital furrow connects the deepened grooves extending along 
the anterior edge of the posterior lobes. The anterior part of the 
glabella quite regularly rounded. The curvature of the glabella 
towards each side much larger than along its length, the latter being 
almost regular along the middle of the glabella. Occipital furrow 
very distinct, arched forward along the centre, curving forward also 
at each side, around the posterior lobe ; the posterior edge following 
about the direction of the occipital furrow. Anterior border of the 
head forming a broad and even curve about the head, the border fair- 
ly broad, flat, turned a little upward, not arched in the middle, somewhat 
like the species last described. Facial suture beginning with a slight 
outward curvature at its very origin, then a gradual inward curvature 
as far as the eye, then it curves around the eye, and posteriorly to it 
takes an almost lateral direction as far as the edge of the ele- 
vated regions of the head, along this edge it is directed to the 
