GEOLOGICAL \M> GEOGBAPHK \l. DISTBIBUTIOK 1 l.j 



Pentremitidse (continued). 



lYntivmites >]iiiii)Mi-, HamliHcli. 



^Pentremites Bulcatus'j Roemer. 



( renera undetermined: — 



[Pentremites] curtus, Shumard. 

 [Pentremites] laterniformisj Owen if Shumard. 

 [Pentremites] mails', Owen. 



Genus and horizon uncertain : — 



Pentremites] Tcuncsseic, [Troosl, MS.,) Shumard. 



1 Probably identical with /'. ( . Sail, and also, according to Hambaeh, with the internal cast 



1 as /'. laterniformis by Owen and Shumard. We do not think, however, that this i> fchi 



*-' We have not been able to consult the work in which this species is recorded. 



