170 



CEPHALOPODA. 



uniangularis, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, Ham. Gr. [Sig. one- 

 angled.] 

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



N.Y., Ham. Gr. [Sig. one-lobed.] 

 whitii, Winchell, 1862, Proc. Acad. Nat. 



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

 GoNiocERAS, Hall, 1847, Pal. N. Y., vol. 1. 



[Ety. gonia, an angle; kerm, a horn.] 

 anceps. Hall, 1847, Pal. N. Y., vol. 1, 



Black Riv. Gr. [Sig. doubtful.] 

 occidentale. Hall, 1861, Rep. of Progr. 



Wis., Trenton Gr. [Sig. western.] 

 Gyroceras, DeKoninck, 1841, Desc. An. 



Foss. Belg. [Ety. gyros, circle; keras, 



a horn,] Not Gyroceratites of Meyer, 



1829. 

 americanum, Billings, 1857, Rep. of Progr. 



Can. Geo. Sur., Up. Sil. [Ety. proper 



name.] 

 bannisteri, Winchell & Marcy, 1865, Mem. 



Bost. Soc. Nat. Hist. See Trochoceras 



bannisteri. 

 burlingtonense, Owen, 1852, Geo. Sur. 



Wis., Iowa & Minn., Low. Carb. [Ety. 



proper name.] 

 constrictum, Meek & Worthen, 1868, Geo. 



Sur. 111., vol. 3, Ham. Gr. [Sig. con- 

 stricted.] 

 cornutum, Owen, 1840, Rep. on Min. 



Lands, Devonian. [Sig. horned.] 

 Cyclops, Hall, 1862, 15th Reg. Rep., Up. 



Held. Gr. [Ety. mythological name.] 

 eryx. Hall, 1862, 15th Reg. Rep., Up. 



Held. Gr. [Ety. mythological name.] 

 expansum, Saeman, Dunker & Von Meyer, 



1853, Palaeontographica, vol. 4, Mar- 



cellus shale. See Nautilus buccinum. 

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



Ham. Gr. [Sig. slender.] 

 hartti, Dawson, 1868, Acad. Geol., Car- 

 boniferous. [Ety. proper name.] 

 inelegans. Meek, 1871, Proc. Acad. Nat. 



Sci. Phil., Corniferous Gr. [Sig. not 



elegant.] 

 jason, Hall, 1876, Illust. Devonian Foss., 



Schoharie grit. [Ety. proper name.] 

 liratum. Hall, 1860, 13th Reg. Rep., Mar- 



cellus shale. [Sig. furrowed.] 

 logani, Meek, 1868, Trans. Chi. Acad. 



Sci., Devonian. [Ety. proper name.] 

 magnijicum, see Lituites magnificus. 

 matheri, Conrad, 1840, Ann. Rep. N. Y., 



(Cyrtoceras matheri) Low. Held. Gr. 



[Ety. proper name.] 

 nais, see Porcellia nais. 

 nereus, Hall, 1862, 15th Reg. Rep., Cornif- 

 erous Gr. [Ety. mythological name.] 

 numa, Billings, 1875, Can. Nat. & Geol., 



Corniferous Gr. [Ety. mythological 



name.] 

 ohioense. Meek, 1871, Proc. Acad. Nat. 



Sci. Phil., Corniferous Gr. [Ety. 



proper name.] 

 paucinodum. Hall, 1876, Illust. Devonian 



Foss., Up. Held. Gr. [Sig. having few 



knots.] 



(?) rockfordense. Meek & Worthen, 1866, 



(Nautilus (Cryptoceras) rockfordensis) 



Proc. Acad. Nat. Sci. Phil., Kinder- 

 hook Gr. [Ety. proper name.] 

 spinosum, Conrad, 1840, (Phragmoceras 



spinosum) Ann. Rep. N. Y., Schoharie 



grit. [Sig. spiny.] 

 subliratum. Hall, 1876, Illust. Devonian 



Foss., Ham Gr. [Sig. somewhat like 



G. Hratum.'] 

 transversum. Hall, 1860, (Cyrtoceras 



transversum) 13th Reg. Rep., Ham. Gr. 



[Sig. crosswise.] 

 trivolve, Conrad, 1840, (Cyrtoceras tri- 



volvis) Ann. Rep. N. Y., Low. Held. 



Gr. [Sig. three- whorled.] 

 undulatum, Vanuxem, 1843, (Cyrtoceras 



undulatum) Geo. Rep. N. Y., Low. 



Held. Gr. [Sig. wavy.] 

 vagans, Billings, LS57, Rep. of Progr. 



Can. Geo. Sur., Black Riv. Gr. [Sig. 



wandering.] 

 validum, Hall, 1876, Illust. Devonian 



Foss,, Schoharie grit. [Sig. strong.] 

 HuRONiA, Stokes, 1823, Geo. Trans., n. s., vol. 



1. [Ety. proper name.] When this 



genus was proposed, the author 



thought he was describing a coral. 



Prof. Billings says that the name was 



proposed for the siphuncle of an Or- 



thoceras, and is, therefore, merely a 



synonym, 

 annulata. Hall, 1851, Lake Superior Land 



Dist. by Foster & Whitney, Niagara 



Gr. [Sig. ringed.] 

 bigsbyi, Stokes, 1823, Trans.Geo. Soc.,vol. 



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

 minuens, Barrande, 1869, Syst. Sil. de 



Boh., 2d series, vol. 4, Clinton Gr. 



[Sig. diminished.] 

 obliqua, Stokes, 1823, Trans. Geo. Soc, 



2nd series, vol. 1, Clinton Gr. [Sig. 



oblique.] 

 portlocki, Stokes, 1840, Trans. Geo. Soc, 



2nd series, vol. 5, Clinton Gr. [Ety. 



proper name.] 

 sphseroidalis, Stokes, 1823, Trans. Geo. 



Soc, 2nd series, vol. 1, Clinton Gr. 



[Sig. spherical.] 

 turbinata, Stokes, 1823, Trans. Geo. Soc, 



2nd series, vol. 1, Clinton Gr. [Sig. 



top-shaped.] 

 vertebralis, Stokes, 1823, Trans. Geo. Soc, 



2nd series, vol. 1, Niagara and Clinton 



Gr. [Sig. vertebra-like.] See Ortho- 



ceras canadense. 

 Hydnoceras, Conrad, 1842, Jour. Acad. Nat. 



Sci., vol. 8. [Ety. hydnos, a truffle; 



keras, a horn.] See Dictyophyton, a 



plant. 

 tuberosum, see Dictyophyton tuberosum. 

 Lituites, Montfort, 1808, Conch. Syst. [Ety. 



lituus, a trumpet.] 

 apollo, Billings, 1862, Pal. Foss., Calcif. 



Gr. [Ety. mythological name.] 



