PTEROPODA 
207 
In 1876 C. D. Walcott described Conularia quadrata, from the Trenton group 
( Desc. New Species of Fossils, in advance of the Report of N. Y. State Museum of Nat. 
History ). 
In 1876 J. Hall designated and illustrated Conularia Cayuga, C. continens, and 
C. crebristriata, from the Hamilton group, and C. congregata, from the Portage 
group (Illustrations of Devonian Fossils, descriptions of plates 28 and 29). 
The geological distribution of these species is presented in the following table: 
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SPECIES. 
Conularia, Miller: 
asperata, Billings 
Bybiis, White 
Cayuga, Hall 
congregata, Hall . 
continens, Hall . 
crebristriata, Hall . 
elegantula, Meek 
Gattingeri, Safford 
gracilis, Hall 
granulata, Hall 
Hudsoni, Emmons 
Huntiana, Hull 
inlrequens, Hall . 
laqueata, Conrad . 
lata, Hall 
longa, Hall 
Marionensis, Swallow 
inicronema, Meek 
Missouriensis, Swallow 
niQlaris, White . 
Newberryi, Winchell 
Niagarensis, Hall . 
Osagensis, Swallow . 
papillata, Hall 
planocostata, Dawson 
pyramidalis, Hall . 
quadrata, Walcott 
splendida, Billings . 
subcarbonaria, M. cf W. 
subulata, Hall 
Trentonensis, Hall 
tnplicata, Swallow 
undulata, Conrad . 
Verneuila, Emmons . 
victa, White 
