166 



CEPHALOPODA. 



CryptocerM, D'Orbigny, 1850. [Ety. kryptos, 

 concealed; keras, horn.] This name 

 was preoccupied by Latreille for a 

 genus of insects, and had been previ- 

 ously used by BaiTande for a genus 

 of Cephalopods. 

 capax, see Solenocheilus capax. 



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

 Handbueh der Geognosie bearbeitet 

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

 keras, horn.] 



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

 Schoharie grit. [Sig. 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 iireocoupied 

 by Goldfuss in 1832. 



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



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

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



Trenton Gr. [Sig. bent ; in allusion 



to the arched chambers.] The name 



was preoccupied by Steiningfr in 1830, 



see D'Archiac & Yerneuil. ^lemoir on 



Pal. Foss., 1842. 

 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 Riv. Gr. 



[Ety. proper name.] 

 bondi, Saflford, 1869, Geo. i>f Tenn., Na.9h- 



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 preooctipied bv Roemer in 



1844. 

 carrollense, 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. Gv. [Ety. proper 



name.] 

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



Up. Magnesian Gr. [Sig. conical, 



tapering to a point.] 

 conradi. Hall, 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.] 



r.ornirulum, Hall, 1862, Geo. Rep. Wis., 

 Trenton Gr. [Sig. a little horn.] The 

 name was preoccupied by Barrande in 

 1848, and again by Eichwald in I860. 



corydon, Billings, I8ij6, Catal. Sil. Foss. 

 Antic, Niagara <Tr. [Ety. proper 

 name.] 



oirtum, ]\Ieek A- Worthen, 1860, Proc 

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

 [Sig. short.] Was this name preoccu- 

 pied by Eichwald? 



dardanus," Hall, 1861, Rep. of Progr. Geo. 

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

 thological name.] 



dictys, Billings, 18fi5, Pal. Foss., Quebec 

 (ir. [Etv. mythological name.] 



dictyum. White, 1876, Proc Acad. Nat. 

 Sci., Devonian. [Sig. a net.] 



dilatatum. Meek & Worthen, I860, Proc. 

 Acad. Nat. S<;i. Phil., Up. Goal 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, LSiil, Rep. of Progi-. Wis., 

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



exiguum, Billings, I860, Gun. Nat. & Geo., 

 vol. 5, Trenton Gr. [Sig. httle, small.] 



falx, Billings, 1N57. Rep. of Progi-., Black 

 Riv. & Trenton (Tr. [Sig. a sickle.] 



filosum, Emmons, 1842, Nat. Hi.st. N, Y., 

 vol. 4, Trenton (4r. [Sig. covered with 

 thread-like markings.] 



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

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

 name.] 



fragile, Billin,gs, ]86(i, Catal. Sil. Foss. 

 Antic, Anticosti (Jr. [Sig. frail, easily 

 broken. ] 



gibbosum, Hall, is7(i, Illust. Devonian 

 Foss., Ham. Gr. [Sig. gil.ibous.] 



(lifjaiilciiiH, :McChesncy, Jan. 1860, New 

 Pal. Foss., Niagara Gr. In 1861 

 JlcChesney referred this species to 

 tlie genus Lituiks, and proposed for it 

 the name Liltnltn canceUahia. Prof. 

 Hall, in the meantime, described it 

 a.s Litinlea occidditalk. It is now re- 

 ferred to the genus XautihiK. and as 

 both the earlier names were preoccu- 

 pied, .McChesney's name nmceUatux 

 has precedence. 



hercules, Winchell & Marcy, 1865, (Lit- 

 uites hercules) Mem. Bost. Soc. Nat. 

 Hist., Niagara (4i-. [Ety. mythological 

 name.] 



hertzeri. Hall & Wliitfield, 1875, Ohio 

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

 name.] 



hlironenise, Billings, 1865, Pal. Foss., 

 Black Riv. or Trenton (^r. [Ety. 

 proper name.] 



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

 Riv. or Trenton Gr. [Ety. proper 

 name.] 



