REFERENCES TO THE PLATES. 
431 
its flat surfaces leave on the rock, and the bits of its sub¬ 
stance which I have yet procured are so insignificant that 
I have given no engraving of the species. Mr. Peach 
however, of Goran in Cornwall, has some satisfactory spe¬ 
cimens derived from his neighbourhood, and he has seen 
one in the rock about a foot long. The bare impress of 
the branches of this coral might most readily be mistaken 
for specimens similar to those at Figs. 1 and 2. Table 4.— 
Fig. 7 delineates a curious relique which I procured at 
Noss Mayo from the arenaceous schist, a coarse material, 
and which predominates on all the coast. I take this to be 
either some obscure zoophyte or a vegetable production ; 
the slate directly surrounding it and forming it, is a 
delicate pink; I have once or twice seen it in other spots 
and seemingly always presenting a squared or oblong figure. 
Fig. 8 (left hand fossil) is a representation of a beautiful 
and most delicate as well as curious remain, which I have 
several times noticed in the quarry towards Brixton ; it in¬ 
valuably offers a defined outline, and is raised and rounded. 
I have some idea from its markings it may be a Spongia. 
Table 3. — Fig. 1 is I apprehend an impression of a 
Cyathophyllum, or at least of some cup-shaped zoophyte. 
It is from the slate near Kitley. Were it not cup-shaped, it . 
would not be distinct so far as the markings indicate, from 
the group just underneath,— Fig. 2 ; these have been esti¬ 
mated by some as impressions of bivalves, but from an 
observation of the same description of fossil in other spots, 
I believe them to be zoophytes having the shape and outline 
of expanded leaves. The specimen is from Cann quarry, 
a short distance from the confines of Dartmoor; the slate is 
particularly solid, though on the other hand I met with a 
collection of the same fossils in the highly frangible 
brown slate or schist at Kitley Point. Figs. 3, 4, and 5 are 
interesting fossils of the old red, or rather grey sandstone of 
Whitsand near Plymouth, but on the Cornish side. I did 
not originally design to extend myself to that locality, but 
owing to the interest which these and other beautiful spe¬ 
cimens convey in exhibiting the identity of our fossils, 
generically speaking, in the three rocks of the grauwacke 
series, I thought the reader would excuse the trifling fault 
of going beyond the precincts of the districts for illustrations 
