Crinoidea sp. (segments). 
Pentremites sp. 
Rhombopora sp. near tabulata 
Ulrich. 
Rhombopora sp. 
Stenopora sp. 
Fenestella cestriensis? Ulrich. 
Fenestella flexuosa Ulrich. 
Fenestella sp. 
Polypora spinulifera Ulrich. 
Polypora cestriensis Ulrich. 
Lioclema araneum Ulrich. 
Streblotrypa nicklesi Ulrich. 
Fistulipora excelens? Ulrich. 
Archimedes distans Ulrich. 
Archimedes sp. 
i 
bo 
(0 2) 
cas | 
Dielasma sp. 
Productus sp. 
Spiriferina transversa McChes- 
ney. 
Spiriferina spinosa N. & P. 
Spirifer leidyi N. & P. 
Eumetria marceyi Shumard. 
Brachiopod sp. 
Aviculopecten c. f. monroensis 
Worthen. 
Orthonychia chesterense M. & W. 
Spirorbis c. f. imbricatus Ulrich. 
Griffithides granulatus Weth- 
erby. 
Cladodus sp. (base of tooth). 
Fish sp. (spine). 
Discussion of fauna. Fron the foregoing lists, it will be seen that 
the fauna of the lower and middle limestones have many of the elements 
of the Salem fauna. This is particularly true at the eastern extensions 
of these beds where, in all probability, the shallow, lagoonal conditions 
favorable to this fauna, prevailed. 
The lower limestone in section I has only two species which do 
not occur in the Salem limestone. These are J/artinia contracta and 
Baiostomella abrupta? The latter was not found in the middle limestone. 
The western extension of the lower limestone retains a few of the Salem 
species but indicates a condition of deposition farther from the shore-line. 
To the west it also contains Batostomella abrupta. In the collections from 
the lower layer, foraminifera are very scarce. 
Collections from the middle limestone show that many Salem species 
continued to exist, but IJartinia contracta is the most noticeable species, 
and Pentremites becomes a prominent member of the fauna. Thin sections 
from this horizon show under the microscope a great number of forms of 
foraminifera, and will undoubtedly yield many species, an element which 
will distinguish this limestone wherever found. 
The faunal character of the upper limestone is entirely distinct from 
that of the two lower layers. It is of late Chester age and shows no dis- 
tinct Salem forms. 
