164 F. B. Meek on the Carboniferous Rocks of 
ersii of Norwood and Pratten, as it is known to occur there, and 
is figured by Mr. Marcou under the name P. scabriculus, in his — 
u, i Ww fig 
locality east of the Black Hills. .S. lineatus of Marcou’s list 8 — 
undoubtedly the same shell called S. perplera by McChesney. — 
(Trans. Chicago Acad., 1). It is common in the upper Coal — 
measures of the West, being, as McChesney correctl 
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wtenslvely 
“the Coal-measures, particularly the upper portion, extenst ee 
distributed in the West.” Terebratula Royssii is doubtless 
Spirigera generally referred to that species in 
by Owen, 
very common in the Coal-measures of Kansas, and ranges" 
Terebratula bovidlens Morton (= T. millepunctata Hall) first 
scribed from the Coal-measures of Ohio, is a very common - 
cies in rocks of that age in the West, and unknown in any oe 5 
pens The same may also be said of Spiri/erina Kentuckenss : 
mard. : 
doubt, refer to the Coal-measures. Some few of them aoe 
appear to be common to the Coal-measures and Subearbonie 
peek or are supposed to be, but all the others are wholly ! 
own below the horizon of the Millstone grit. a 
