168 



CEPHALOPODA. 



typica, Billings, 1865, Pal. Foss., Black 



Riv. Gr. [Sig. type of the genus.] 

 DiPLOCEEAS, Conrad, 1842, Jour. Acad. Nat. 



Sci., vol. 8. [Ety. diploos, double; 



keras, horn.] 

 vanuxemi, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, Trenton Gr. [Ety. 



proper name.] 

 D1SCITE.S, DeHaan, 1825, Mongr. Amnion., 



etc. [Ety. dnkos, a quoit.] 

 disciformis, Meek & Worthen, 1865, Proc. 



Acad. Nat. Sci. Phil., Keokuk Gr. 



[Sig. in the shape of a quoit.] 

 highlandensis, Worthen, 1875, Geo. Sur. 



111., vol. 6, Coal Meas. [Ety. proper 



name.] 

 ornatm, syn. for Nautilus marcellensis. 

 tuberculatus, Owen, 1852, Geo. Sur. AVis., 



Iowa and Minn., Low. Carb. [Sig. 



covered with tubercles.] 

 DiscosoKus, Hall, 1852, Pal. N. Y., vol. 2. 



[Ety. diskos, a quoit; so;-os, a heap or 



pile.] 

 conoideus. Hall, 1852, Pal. N. Y., vol. 2. 



Clinton & Niagara Gr. [Sig. conical.] 

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



[Ety. mdos, within ; keras, horn.] 



This genus seems to be founded upon 



the same fossils that Conrad previ- 

 ously founded his genus Diploceras 



upon, 

 angusticameratum. Hall, 1847, Pal. N.Y., 



vol. 1, Trenton Gr. [Sig. narrow- 

 chambered.] 

 annulatum. Hall, 1847, Pal. N. Y., vol. 



1, Trenton Gr. [Sig. ringed.] 

 approximatum. Hall, 1847, Pal. N. Y., 



vol. 1, Trenton Gr. [Sig. approximat- 

 ing.] 

 arctiventrum. Hall, 1847, Pal. N. Y., vol. 



1, Trenton Gr. [Ety. arctus, close; 



venter, a cavity.] 

 atlanticum, Barrande, 1869, Syst. Sil. de 



Boh., 2d ser., 4me, Quebec" Gr. [Sig. 



Atlantic] 

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



Trenton Gr. [Sig. distant.] 

 duplicatum. Hall, 1847, Pal. N. Y., vol. 



1, Trenton Gr. [Sig. doubled.] 

 gemelliparum, Hall, 1847, Pal. N. Y., vol. 



1, Black Riv. Gr. [Sig. twins, in allu- 

 sion to the two embryo-tubes enclosed 



within the siphuncle.] 

 insulare, Barrande, 1869, Syst. Sil. de 



Boh., 2d ser., 4me, Quebec Gr. [Sig. 



belonging to an island.] 

 lativentrum. Hall, 1850, 3rd Reg. Rep. 



N. Y., Trenton Gr. [Ety. l(ilus,\)road ; 



venter, cavity.] 

 longissimum. Hall, 1847, Pal. N. Y., vol. 



1, Black Riv. & Trenton (jr. [Sig. 



of unusual length.] 

 magniventrum, Hall, 1847, Pal. N. Y., 



vol. 1, Trenton Gr. [Ety. magnva, 



large; (vxfc/-, cavity.] 

 marcoui, Barrande, 1869, Syst. Sil. de 

 Boh., 2d ser., 4me, Quebec Gr. [Ety. 

 proper name.] 



multitubulatum. Hall, 1847, Pal. N. Y., 

 vol. 1, Black Riv. & Trenton Gr. [Sig. 

 having many pipes.] 

 proteiforme, Hall, 1847, Pal. N. Y., vol. 

 1, Hud. Riv. and Trenton Gr. [Sig. 

 having many shapes.] 

 proteiforme rar. elongatum. Hall, 1847, 

 Pal. N. Y., vol. 1, Trenton Gr. [Sig. 

 lengthened.] 

 proteiforme var. lineolatum. Hall, 1847, 

 Pal. N. Y., vol. 1, Trenton Gr. [Sig. 

 marked with fine lines.] 

 proteiforme rar. strangulatum. Hall, 1847, 

 Pal. N. Y., vol. 1, Trenton Gr. [Sig. 

 constricted.] 

 proteiforme var. tenuistriatum, Hall, 1847, 

 Pal. N. Y., vol. 1, Trenton Gr. [Sig. 

 fine-lined.] 

 proteiforme rar. tenuitextum. Hall, 1847, 

 Pal. N. Y., vol. 1, Trenton Gr. [Sig. 

 finely woven.] 

 rapax, Billings, 1860, (Orthoceras rapax) 

 Can. Nat. & Geol., vol. 5, Black Riv. 

 Gr. [Sig. ravenous.] 

 rottermundi, Barrande, 1866, (Orthoceras 

 rottermundi) Syst. Sil. de Boh., 2d 

 ser., 2me, Trenton Gr. [Ety. proper 

 name.] 

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

 Black Riv. Gr. [Sig. nearly central.] 

 Endohbus, Meek & "Worthen, 18 65, Proc. 

 Acad. Nat. Sci. Phil. [Ety. endos, 

 within; lobos, a lobe.] Prof. Meek 

 said later that this genus is not distinct 

 from Temnoclmhis, and if distinct it 

 would probably be a synonym for 

 Montfort's genus Bmphites. 

 peramplus, see Temnocheilus peramplum. 

 spectabilk, see Temnocheilus spectabile. 

 Glossocee.\s, Barrande, 1865, Cephalopods 

 of Bohemia, vol. 2. [Ety. ghsse, the 

 tongue; keras, a horn.] 

 desideratum, Billings, 1866, Catal. Sil. 

 Foss. Antic, Clinton Gr. [Sig. rare.] 

 GoMPHooERAS, Sowerby, 1839, Murch. Sil. 

 Syst. [Ety. gomphos, a club ; kerae, a 

 horn.] 

 beta, see Cyrtoceras beta. 

 conradi, see Cyrtoceras conradi. 

 eos, Hall & Whitfield, 1875, Ohio Pal., 



vol. 2, Cin'ti Gr. [Sig. the dawn.] 

 eximium, Hall, 1861, Hth Reg. Rep., Up. 

 Held. Gr. [Sig. choice, unparalleled.] 

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



Gr. [Ety. proper name.] 

 marcyx, Winchell & Marcy, 1865, Mem. 

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

 Syn. for G. scrlnium. 

 obeeum, Billings, 1857, Rep. of Progr., 



Utica Gr. [Sig. plump in form.] 

 omicron, Winchell, 1866, Rep. Low. Pen- 

 insula Jlich., Ham. Gr. [Ety. a letter 

 of the Greek alphabet.] 

 oviforme. Hall, 1800, 13th Reg. Rep. 



N. Y.,Ham. Gr. [Sig. egg-shaped.] 

 aacculum, see C3'rtoceras sacculum. 

 scrinium, Hall, 1864, 20th, Reg. Rep. 

 N. Y., Niagara Gr. [Sig, a casket.] 



