PlEU. 



712 



Pleurotomaria lucina, Hall. {Euomphalus? rotundus, 

 Vni/3b««^^^^^ .....^ ..^ /2 .... Ha]]1813, 



p. 172, f. 4; 

 Pleuroto- 

 maria ro- 

 tunda ta^ 

 Munster.) 

 15th. N. Y. Annual Report, 

 1862, p. 42, pi. 5, fig. 12. Pal. 

 HcdL I5ik A7j./?/^:^^^^^p/.5 Ohio, Vol. 1, 1873, p. 226, pi. 

 20, fig. 6, a cast of the interior, retaining bits of thin shell. This 

 round species is easily distinguished, even in compressed casts 

 of the interior. Sometimes concentric striae coarser than revolv- 

 ing strige; sometimes the reverse, &c. Corniferous of eastern 

 N. Y., Hamilton shales of middle New York. VIII a^ VIII c, 



Pleurotomaria meekana. (Hall. Trans. Alb. Inst. Vol. 



4, 1856, Whitfield, Am. Mus. Nat. 

 Hist. N. Y., plate 9, figs. 8, 9.) 

 Gollett's Indiana Rt. 1882, page 

 353, plate 32, figs. 8, 9, enlarged 

 three times : side and top views of 



nid.lS^X7 P/r^'*^^-<^\3X. type specimen, slightly restored. 



Has the general form of jP. humilis; but has one or two more 



whoils which do not increase so^ rapidly; umbilicus larger ; 



mouth more square. Suh carboniferous. XI 



Pleurotomaria muralis. Owen & Shumard. Geology of 



Wisconsin, "" Iowa, and Minne- 



sota, 1852. Plate 2, fig. 5, from 

 the Magnesian limestone (F3, 

 of Owen's series), "at Lower 

 Fort Gearv, Red River of the 

 North. — Galciferous sand- 

 stone., W a. 



Ow. Rm 



