SUPPLEMENT. 
509 
from being entire. The branches are serrated on one side : serratures 
somewhat closely arranged. 
The specimen shows the lower or non-serrated surface, and several of the longer 
branches are turned sufficiently on one side to show the serrations in a tolerable 
degree of perfection. 
Fig. 8. The specimen, natural size. 
Graptolithus multifasciatus. 
Graptolitlms divergens (n. s ). 
Body slender, consisting of a straight central stipe or rachis, on each side 
of the longitudinal centre of which are given off diverging branches in 
pairs, and nearly opposite each other at the bases : these branches are 
of unequal length, the longest being frequently as long as the main 
stipe on either side of its centre. Branches slenderly serrate on one side. 
Fig. 9. 
Fig. 9 is an individual of this species, one branch of which appears 
to bifurcate near its origin. 
These species are from the shales of the upper part of the Hudson-river group. 
