232 



Palaeozoic Fossils of the Northwest — Bierhauer. 



*As identified by Geinitz is Speriferina keatuckiensis. 



fls an Orthis— or more properly a Platystrophla.— £/7ric2i. 



tGeol. Iowa, Vol. i. Pt. 1, 1858, p 511. ed. 



§This species is not American, 



II Synonym for S. pennata.— 4<water. 



ifSyn. for S. rockymontana Marcou.— t/^/rieZ?. 



**Preoccupied— see S. atwaterana. 



