264 
PALAEONTOLOGY OF NEW-YORK, 
319. 6. PAL/EOPHYCUS {Species undetermined'). 
Pn. LXX. Fig. 2. 
This species occurs in short, small fragments, often quite covering the shaly laminae 
m some parts of this group. It appears to have been a succulent plant; but no definite 
character can be assigned to it in the present state of our knowledge. The specimens figured 
are in a fragment of slate, presenting the usual aspect of the species. It is often found in 
smaller and in larger fragments, both covering the surfaces and penetrating the thin 
arenaceous layers. 
Position and locality. In the central portions of the group, near Rome, Oneida county; 
and in Lewis and Oswego counties. {State Collection.) 
320. 1. GORDIA MARINA.* 
Pl. LXXI. Figs. 1, 2. 
Gordia marina. Emmons, Tac. System, pag. 67, pl. 1, fig. 2. 
— —« Id. Agr. Report, pag. 68, pl. 14. 
I have given this peculiar form, though doubting whether it be organic. An examination 
of two specimens shows the slightly elevated ridge to be thoroughly incorporated with 
the stone on one side, and appear as if they had filled slight depressions in the soft shales 
beneath. The form and meanderings of this body are not unlike the tracks made by 
Melania and other aquatic and marine shells of the present day; and I am, therefore, 
inclined to refer it to such a cause. Examined with this, or the other view, it does not 
detract from the interest attached to this singular marking upon the surface of these ancient 
strata. I have given figures of two specimens, in which the exact course of the elevated 
ridge is preserved. 
Position and locality. These specimens occur in the same position, and at the same 
locality, with those forms described on Plate LXIX, from M‘Arthur’s quarry, Jackson, 
Washington county. 
In addition to the forms here given, and those which are unequivocally of vegetable 
origin, there are others in which it is impossible to determine their true character. After 
examining a considerable number of specimens of this kind, I have decided to omit them 
all, believing that an attempt to indicate species and genera where constant characters are 
wanting, will be followed by a multiplication of species of which the individuals described 
would be the only representatives; an occurrence that can be attended with no good 
results to the science. 
* I have used the generic term Gordia in this instance, though aware that the similar name of Gordius will 
preclude its final adoption among naturalists. 
