127 Morgan Expeditions. 
Dedicated to Mr. Rolfe Eldredge, one of Prof. Hartt’s 
companions at Ereré, on his expedition of 1870. 
Among the more obscure remains obtained from the De- 
vonian sandstone beds at Ereré, and which it is impossible 
from their imperfect condition to properly identify, are frag- 
ments of crinoidal columns, the valves of a form which 
appears to be related to Beyrichia, M’Coy, fragments of 
wood, etc. They are all, however, in such a poor state of 
preservation, that it would be unwise to attempt anything 
beyond a mere notice of their appearance. The crinoidal 
remains occur as impressions of the detached disks of the 
columns, which are small and thin, and it is seldom that more 
than two or three of the disks are found together. The 
central canal is generally replaced by sandy material, but 
none of the surface markings are retained. Diameter of 
disks, about 2-5 to 3"; thickness of each, about -5™". The 
test of Beyrichia (?) is small, sub-ovate in outline, with a 
slight depression near one end. The surface, though imper- 
fect in all the specimens obtained, seems to have been granu- 
lose. Diameter of a medium specimen, 2”. The remains 
that have been referred to with doubt as plants have no 
definite or describable shapes and are probably fucoidal. 
Many of the other fragments obtained will undoubtedly be 
explained with the aid of new collections from the same 
locality. 
[Printed at the SALEM PRESS, May, 1875.] 
