CEPHALOPODA. 



septore, Hall, 1867, 20th Peg. Rep., Ni- 

 agara Gr. [Ety. septern, seven ; os-oris, 

 a mouth.] 

 subgracile, Billings, 1857, Rep. of Progr., 



Up. Sil. [Sig. somewhat slender.] 

 turbiniforme, Meek & AVorthen, 1866, 

 Proc. Acad. Nat. Sci. Phil., Ham. Gr. 

 [Sig. formed like a top.] 

 Goniatites, DeHaan, 1825, Monogr. Am- 

 monites et Goniatites. [Ety. gcmia, 

 an angle : lithos, stone.] This name, it 

 seems, should be spelled Gonialites. 

 allei, Winchell, 1862, Am. Jour. Sci., 2nd 

 series, vol. 33, Marshall Gr. [Ety. 

 proper name.] 

 bicostatus, Hall, 1843, Geo. Rep. 4th 

 Dist. N. Y., Portage Gr. [Sig. double- 

 ribbed.] 

 chemungensis, Vanuxem, 1843, Geo. 

 Rep. 3rd Dist. N. Y., Chemung Gr. 

 [Ety. proper name.] 

 chemungensis car. jequicostatus, Hall, 

 1875, 27th Reg. Rep. N. Y., Chemung 

 Gr. [Sig. equal-ribbed.] 

 . choctawensis, Shumard, 1863, Trans. St. 

 Louis Acad. Sci., Coal Meas. [Ety. 

 proper name.] 

 compactus, Meek & Worthen, 1875, Proc. 

 Acad. Nat. Sci. Phil., Coal Meas. [Sig. 

 compact.] 

 complanatus, Hall, 1843, (Clymenia (?) 

 complanatus) Geo. Rep. 4th Dist, N. 

 Y., Chemung Gr. [Sig. smoothed.] 

 complanatus var. perlatus, Hall, 1875, 

 27th Reg. Rep. N. Y., Chemung Gr. 

 [Sig. very wide.] 

 discoideus, *Hall, 1860, 13th Reg. Rep. 



N.Y.,Ham. Gr. [Sig. disc-like.] 

 discoideus var. ohioensis, Hall, 1874, 

 27th Reg. Rep. N. Y., Up. Held. Gr. 

 [Ety. proper name.] 

 entogonus, Gabb, 1861, Proc. Acad. Nat. 

 Sci., Carboniferous. [Sig. angular 

 within.] 

 erato, Hall, 1862, (Clymenia erato) 15th 

 Reg. Rep., Ham. Gr. [Ety. mytho- 

 logical name.] 

 expansus, Vanuxem, 1842, Geo. Rep. 

 3rd Dist. N. Y., Marcellus shale. [Sig. 

 expanded.] 

 globulosus, Meek & AVorthen, 1860, Proc. 

 Acad. Nat. Sci. Phil., Up. Coal Meas. 

 [Sig. like a small ball.] 

 hathawayanus, McChesney, 1860, Desc. 

 New Pal. Foss., Coal Meas. [Ety. 

 proper name.] 

 holmesi, Swallow, 1860, Trans. St. Louis 

 Acad. Sci., Chemung Gr. [Ety. proper 

 name.] 

 houghtoni, Winchell, 1862, Am. Jour. 

 Sci., 2d ser.,vol. 33, Marshall Gr. [Ety. 

 proper name.] 

 hyas, Hall, Dec, 1860, 13th Reg. Rep., 

 Low. Carb. [Ety. mythological name.] 

 . iowensis, Meek & Worthen, 1860, Proc. 

 Acad. Nat. Sci. Phil., Coal Meas. 

 [Ety. proper name.] 



ixion, Hall, 1860, 13th Reg. Rep., Ham. 

 Gr. This species is founded on the 

 form which has been identified with 

 the European species O. rotatoriim. 

 [Ety. mythological name.] 

 lyoni, Meek & Worthen, 1860, Proc 

 Acad. Nat. Sci. Phil., Kinderhook (?) 

 Gr. [Ety. proper name.] 

 marcellenm, see Nautilus marcellensis. 

 marshallensis, Winchell, 1862, Am Jour 

 Sci., 2d ser., vol. 33, Marshall Gr.' 

 [Ety. proper name.] 

 minimus, Shumard, 1858, Trans. St. Louis 

 Acad. Sci., Coal Meas. [Sig. very 

 small.] 

 mithrax, Hall, 1860, 13th Reg. Rep. N.Y., 

 Up. Held. Gr. [Ety. mithrax, a preci- 

 ous stone.] 

 morganensis, Swallow, 1860, Trans. St. 

 Louis Acad. Sci., Chouteau or Che- 

 mung Gr. [Ety. proper name.] 

 nolinensis, Cox, 1857, Geo. Sur. Ky. 

 vol. 3, Coal Meas. [Ety. proper name 1 

 nundaia, Hall, 1875, 27th Reg. Rep. N. 

 Y., Portage Gr. [Ety. proper name.] 

 orbicella, Hall, 1860, 13th Reg. Rep. 

 N. Y., Ham. Gr. [Sig. a little circle.] 

 osagensis, Swallow, 1860, Trans. St. Louis 

 Acad. Sci., Chemung Gr. [Ety. 

 proper name.] 

 oweni, Hall, 1860, 13th Reg. Rep. N. Y., 



Ham. Gr. [Ety. proper name.] 

 oweni var. parallelus, Hall, 1860, 13th 

 Reg. Rep., Ham. Gr. [Sig. parallel.] 

 parvus, Shumard, 1858, Trans. St. Louis 

 Acad. Sci., Coal Meas. [Sig. small ] 

 patersoni, Hall, 1860, 13th Reg. Rep. N. 

 Y, Portage Gr. [Ety. proper name.] 

 peracutus, Hall, 1876, Illust. Devonian 

 Foss., Up. Held. Gr. [Sig. very acute.] 

 planorbiformis, Shumard, 1855, Geo. Sur. 

 Mo., Coal Meas. [Sig. like a shell of 

 the genus Planvrbis.] 

 politus, Shumard, 1858, Trans. St. Louis 

 Acad. Sci., Coal Meas. [Sig. smoothed.] 

 propinquus, Winchell, 1862, Am. Jour. 

 Sci. & Arts, 2nd series, vol. 33, Mar- 

 shall Gr. [Sig. related.] 

 punctatus, Conrad, 1838, Ann. Rep. N 



Y., Ham. Gr. [Sig. dotted.] 

 pygmseus, Winchell, 1862, Am. Jour. Sci. 

 and Arts, 2nd series, vol. 33, Marshall 

 Gr. [Ety. mythological name.] 

 rotatorius, DeKoninck, 1843, Desc. des 

 Anim. Foss. du Terr. Carb. See G. 

 ixion. 

 shumardanus, AVinchell, 1865, Am. Jour. 

 Sci. & Arts, 2nd series, vol. 33, Mar- 

 shall Gr. [Ety. proper name.] 

 simulator, Hall, 1875, 27th Reg. Rep., 



Chemung Gr. [Sig. a dissembler.] 

 sinuosus, Hall, 1843, Geo. Rep. 4th Dist. 

 N. Y., Portage Gr. [Sig. full of fur- 

 rows.] 

 suMferus, Winchell. Not defined, 

 texanus, Shumard, 1863, Trans. St. Louis 

 Acad. Sci., Coal Meas. [Ety. proper 

 name.] 



