166 



CEPHALOPODA. 



Cryptoceras, D'Orbigny, 1850. [Ety.^ h-yptos, 

 concealed ; keras, horn.] This name 

 was preoccupied by Latreille for a 

 genus of insects, and had been previ- 

 ously used by IJarrande for a genus 

 of Cephalopods. 

 capax, see Solenocheilus capax. 



Cyktoceras, Goldfuss, 1832, in De la Beche's 

 Handbuch der Geognosie bearbeitet 

 von V. Deschen. [Ety. kurtos, curved ; 

 keras, horn.] 



absens. Hall, 1876, Illust. Devonian Foss., 

 Schoharie grit. [Wig. absent, distant.] 



alethes, Billings, 1865, Pal. Foss., Quebec 

 Gr. [Ety. proper name.] 



amplicorne. Hall, 1867, 20th Reg. Rep., 

 Niagara Gr. [Sig. a large horn.] 



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



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

 ringed.] This name was iireoccupied 

 by Goldfuss in 1832, 



arcticameratum, Hall, 1852, Pal. X. Y.,vol. 



2, Guelph Gr. [Sig. close-chambered.] 

 arcuatum, Hall, 1817, Pal. N. Y., vol. 1, 



Trenton Gr. [Sij,'. bent ; in allusion 



to the arched chamljers.] The name 



was preoccupied by Steininger in 1830, 



see D'Archiac & Verneuil, Memoir on 



Pal. Foss., 1812. 

 aristides, Billings, 1865, Pal. Foss., Quebec 



Gr. [Ety. mythological name.] 

 beta, Hall, 1862, (Gomphoceras beta) 15th 



Reg. Rep., Schoharie grit. [Sig. a 



Greek letter.] 

 billingsi, Salter, 1859, Can. Org. Rem., 



Decade 1, Chazy or Black Kiv. Gr. 



[Ety. proper name.] 

 bondi, SaflFord, 1869, Geo. of Tenn., Xash- 



ville Gr. [Ety. proper name.] 

 brevicorne. Hall, 1867, 20th Reg. Rep., 



Niagara Gr. [Sig. short-horned.] 

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



Trenton Gr. [Sig. crooked.] 

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



Niagara Gr. [Sig. cancellated.] The 



name was preoccupied by Roemer in 



1844. 

 carroUense, Worthen, 1875, Geo. Sur. 111. 



vol. 6, Galena Gr. [Ety. proper 



name.] 

 clavatum. Hall, 1876, Illust. Devonian 



Foss., Schoharie grit. [Sig. club- 

 shaped.] 

 clitus, Billings, 1866, Catal. Sil. Foss. 



Antic, Niagara Gr. [Ety. proper 



name.] 

 conicum, Owen, 1840, Rep. on Min. Lands, 



Up. Magnesian Gr. [Sig. conical, 



tapering to a point.] 

 conradi. Flail, 1860, (Gomphoceras con- 



radi) 13th Reg. Rep., Ham. Gr. [Ety. 



proper name.] 

 constrictostriatum, Hall, 1847, Pal. N.Y., 



vol. 1, Trenton Gr. [Sig. constricted 



and striated.] 



conii/Mlum, Hall, 1802, Geo. Rep. Wis., 

 Trenton (ir. [Sig. a little horn.] The 

 name was preoccupied by Barrande in 

 1848, and again by Eichwald in 1860. 



corydon, Billings, 1866, Catal. Sil. Foss. 

 Antic, Niagara Gr. [Ety. proper 

 name.] 



curtum. Meek & Worthen, 1860, Proc 

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

 [Sig. short] Was this name preoccu- 

 pied by Eichwald ? 



dardanus. Hall, 1861 , Rei>. of Progr. Geo. 

 Sur. of Wis., Niagara Gr. [Ety. my- 

 thological name.] 



dictys, Billings, 1865, Pal. Foss., Quebec 

 Gr. [Ety. mythological name.] 



dictyum, White, 1876, Proc Acad. Nat. 

 Sci., Devonian. [Sig. a net] 



dilatatum. Meek & Worthen, I860, Proc. 

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

 [Sig. widened, spread out.] 



dorsatum. Swallow, 1858, Trans. St. Louis 

 Acad. Sci., Permian Gr. [Sig. high- 

 backed.] 



eugenium. Hall, 1862, 15th Reg. Rep., 

 Schoharie grit. [Ety. proper name.] 



eugium. Hall, 1861, Rep. of Progr. Wis., 

 Chazy & Black Riv. Gr. [Sig. fertile.] 



exiguum, BilHngs, 1860, Can. Nat & Geo., 

 vol. 5, Trenton (Tr. [Sig. little, small.] 



falx, Billings, 1857, Rep. of Progr., Black 

 Riv. & Trenton Gr. [Sig. a sickle.] 



filosum, Emmons, 1842, Nat. Hist N. Y., 

 vol. 4, Trenton Gr. [Sig. covered with 

 thread-like markings.] 



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

 Sur. Wis., Niagara Gr. [Ety. proper 

 name.] 



fragile, Billings, 1866, Catal. Sil. Foss. 

 Antic, Anticosti Gr. [Sig. frail, easily 

 broken. ] 



gibbosum. Hall, 1876, Illust Devonian 

 Foss., Ham. Gr. [Sig. gibbous.] 



(jiginitedm, ^IcChe.sney, Jan. 1860, New 

 Pal. Foss., Niagara Gr. In 1861 

 jNlcChesney referred this species to 

 the genus Liluites, and proposed for it 

 the name Lituites cancellatm. Prof. 

 Hall, in the meantime, described it 

 as Liluilex ocddenlalis. It is now re- 

 ferred to the genus Nautilus, and as 

 both the earlier names were preoccu- 

 pied, McChesney's name cancellatus 

 has precedence. 



hercules, AVinchell & JIarcv, 1865, (Lit^ 

 uites hercules) Mem. Bost. Soc Nat. 

 Hist., Niagara Gr. [Ety. mythological 

 name.] 



hertzeri. Hall & Whitfield, 1875, Ohio 

 Pal., vol. 2, Niagara Gr. [Ety. proper 

 name.] 



huronense, Billings, 18 65, Pal. Foss., 

 Black Riv. or Trenton Gr. [Ety. 

 proper name.] 



isidorus, Billings, 1865, Pal. Foss., Black 

 Riv. or Trenton Gr, [Ety. proper 

 name.] 



