74 TJic American Geologist. February, 1900 
Agaricocrinus louisianensis. (nov. sp.) 
Figs. 42-43. Basal and lateral views of a small specimen, natural 
size. 
Fig. 44. Lateral view of a large specimen, natural size. 
The calyx is flat or decidedly concave in the largest speci- 
mens. The basal plates are concave. The first radials are 
wider than long. The second radials are nearly twice as 
wide as long. Third radials much wider than long. All of 
the radials have a strong central ridge-like node and the inter- 
radials are almost wart-like. All of the vault plates are nodose 
and the central one larger than the rest. Anal opening small. 
Arm openings ten in ntimber. 
This species differs much from any other species described 
from the Lower Burlington limestone and in its concave base 
approaches more nearly Upper Burlington forms. 
It comes from the very base of the Lower Burlington 
limestone at Louisiana, Mo., and is found associated with 
Batocrinus calvini, Platycrinus corbulifornus and ActinO- 
crinus (Cactocrinus) puteatus. 
Granatocrinus sp.? 
Fig. 45. Side view of a specimen, natural size. 
This fossil comes from the same horizon as G. aplatus and 
may be a variety of that species. It is, however, more elon- 
gate, with more convex base, with less strong surface gran- 
tiles and is much larger than any specimen of that species. It 
may be G. neglectus, but differs in minor details from the 
published description of that little known species. 
Explanation of Plate. 
*• Cadaster Iceviciiliis {xvov. sp.). 
Fig. I. Side view of the bodj', natural size, with ambulacra re- 
moved showing hydrospire slits. 
Fig. 2. Side view, natural size, of a small specimen. 
Fig. 3. Side view of a large individual. 
Fig. 4. Similar view of a specimen with the tips of the ambulacra 
removed. 
Fig. 5. A large individual with the ventral surface turned toward 
the observer, showing two spiracles. 
