CEPHALOPODA. 



171 



. eaneeUatus, McChesney, 1861, New Pal. 

 Fobs., Niagara Gr. See X. ocoidenialis 

 and NaviiluB canceUatus and N. occiden- 

 talit. II this species, as Prof. Hall 

 suggests, is a true Nautilus, McChes- 

 ney s name has precedence. 



capax, Hall, 1860, Eep. of Progr. Geo. 

 Sur. Wis. See Nautilus capax. 



complanatus, Shumard, 1863, Trans. St. 

 Ix)uiB Acad. Sci., Calciferous Gr. [Sig. 

 smoothed.] 



convolvans, (7) Schlotheim, 1813, in Jahr- 

 buch, (Hall, Pal. N. Y., vol. 1) Black 

 Eiv. Gr. [Sig. wrapping together.] 



farnsworthi, Billings, 1861, Pal. Foss., vol. 

 1, Calciferous Gr. [Ety. proper name.] 



graftonensis, Meek & Worthen, 1869, 

 Proc. Acad. Nat. Sci. Phil., Niagara 

 Gr. [Ety. proper name.] 



ha-cules, Winchell & Marcy, 1865, Mem. 

 Bost. Soc. Nat. Hist., Niagara Gr. 

 Syn. for Cyrtoceras amplicorne. See 

 20th Eeg. Rep. N. Y. 



imperator, Billings, 1861, Pal. Foss., Cal- 

 ciferous Gr. [Sig. the chief.] 



magnificus, Billings, 1857, (Gyroceras 

 magnificum) Rep. of Progr., Hud. 

 Riv. Gr. [Sig. magnificent.] 



marshi. Hall, 1867, 20th Reg. Rep., Niagara 

 Gr. [Ety. proper name.] 



oceiderUalis, Hall, 1861, Rep. of Progr. Geo. 

 Sur. Wis., Niagara Gr. This species 

 is now referred by Prof. Hall to the 



fenus Nautilus, see 20th Reg. Rep. 

 t was first described by McChesney, 

 Jan. 1860, as Cyrtoceras giganteum, but 

 that name being preoccupied, in 1861 

 he proposed lAluites canceUatus. If it 

 is a NavMus, the word occidentalis be- 

 ing preoccupied, McChesney's name 

 canceUatus has precedence. 



ortoni, Meek, 1873, Ohio Pal., vol. 1, Ni- 

 agara Gr. [Ety. proper name.] 



palinurus, Billings, 1862, Pal. Foss., Cal- 

 ciferous Gr. [Ety. mvthological name. ] 



pluto, Billings, 1865, Pal. Foss., Quebec 

 Gr. [Ety. mythological name.] 



robertsoni. Hall, 1861, Rep. of Progr. 

 Wis., Chazy & Black Riv. Gr. [Ety. 

 proper name.] 



undatus, Emmons, 1842, (Inachus un- 

 datus) Geo. Rep. N.Y., Black Riv. and 

 Trenton Gr. [Sig. wavy.] 



undatus var. occidentalis, Hall, 1861, Rep. 



of Progr. Wis., Black Riv. & Trenton 



Gr. [Sig. western.] 



Nautilus, Breynius, 1732, Dissert. Polyth. 



[Ety. Nautilos, a sailor or navigator.] 



avonensis, Dawson, 1868, Acad. Geol., 

 Carboniferous. [Ety. proper name.] 



avuB, Barrande, 1869, Syst. Sil. de Boh., 

 vol. 4, Quebec Gr. [Sig. an ancestor.] 



barrandi. Hall, 1876, Illust. Devonian 

 Fobs., Ham. Gr. [Ety. proper name.] 



biserialis. Hall, 1860, Supp. to vol. 1, pt. 

 2, Iowa Geo. Sur., Coal Meas. [Sig. in 

 two series.] This is probably a syn. 

 ior N. occidentalis. 



buccinum, Hall, 1876, Illust. Devonian 



Fobs., Ham. Gr. [Sig. a sea-trumpet.] 



This species was referred to Gyroceras 



expansuin. 

 calciferus, Billings, 1865, Pal. Foss.,Calcif- 



erous Gr. [Ety. from the Calciferous 



Group.] 

 canceUatus, McChesney, 1861, (Lituites 



canceUatus) New Pal. Foss., Niagara 



Gr. [Sig. cross-barred.] 

 canaliculatus, Cox, 1857, Geo. Sur. Ky., 



vol. 3, Coal Meas. [Sig. grooved.] 

 capax. Hall, 1860, (Lituites capax) Rep. 



of Progr. Geo. Sur. Wis., Niagara Gr. 



[Sig. large.] 

 capax, Meek & Worthen, 1865. This 



was preoccupied and must yield unless 



it can be retained in the subgenus 



SoUnocheilus, which see. 

 chesterensis. Meek & Worthen, 1860, 



Proc. Acad. Nat. Sci. Pliil., Chester 



Gr. [Ety. proper name.] 

 clarkanus. Hall, 1858, Trans. Alb. Inst., 



vol. 4, Low. Carb. [Ety. proper name.]" 

 coUectiis, see Solenocheilus collectum. 

 cornulum. Hall, 1876, Illust. Devonian 



Foss., Ham. Gr. [Sig. a little horn.] 

 coxanus, see Temnocheilus coxanum. 

 decoratus. Cox, 1857, Geo. Sur. Ky., vol. 



3, Coal Meas. [Sig. decorated.] 

 desertus, Billings, 1865, Pal. Foss., Que- 

 bec Gr. [Sig. deserted.] 

 digonus. Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., Kinderhook Gr. 



[Sig. two-cornered.] 

 disciformis, see Discites disciformis. 

 discoidalis, see Trematodisous discoidalis. 

 divisus. White & St. John, 1868, Trans. 



Chi. Acad. Sci., Up. Coal Meas. The 



name was preoccupied by Meyer in 



1831. 

 eccentricus, Meek & Hayden, 1858, Trans. 



Alb. Inst., vol. 4, Permian Gr. [Ety. 



ek, from ; kentron, center.] 

 ferox, Billings, 1865, Pal. Foss., Calcifer- 

 ous Gr. [Sig. fierce.] 

 ferratus. Cox, 1857, Geo. Sur. Ky., vol. 3, 



Coal Meas. [Sig. covered with iron.] 

 forbesanus, McChesney, 1860, Desc. New 



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



name.] 

 gilpini, Swallow, 1860, Trans. St. Louis 



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



name.] 

 globatus, Sowerby, 1825, Min. Conch., 



Chester Gr. [Sig. made round.] 

 hercules, Billings, 1857, Rep. of Progr. 

 Can. Geo. Sur., Hud. Riv. Gr. [Ety. 

 mythological name.] 

 highlandensis, see Discites highlandensis. 

 illinoisensis, JlcChesney, 1860, Desc. New 

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

 name.] 

 ingentior, Winchell, 1862, Am. Jour. Sci., 

 2nd series, vol. 33, Marshall Gr. [Sig. 

 larger, enormous.] 

 insolens, Billings, 1865, Pal. Foss., Que- 

 bec Gr. [Sig. rare, unusual.] 



