434 



CEPHALOPODA. 



[CYR. 



gibbosum, Hall, 1876, Illust. Devonian 

 Foss., syn. for Gomphoceras oviforme. 



giganteum, McChesney, Jan. 1860, New 

 Pal. Foss., Niagara Gr. In 1861 Mc- 

 Chesney referred this species to the 

 genus Lituites, and proposed for it the 

 name Lituites cancellatus. Prof. Hall, 

 in the meantime, described it as 

 Lituites occidentalis. It is now referred 

 to the genus Nautilus, and as both 

 the earlier names were preoccupied, 

 McChesney's name cancellatus has 

 precedence. 



hallanum, D'Orbigny, 1850, Prodrome de j 

 Pal., tome 1, p. 1, Trenton Gr. Pro- ! 

 posed instead of C. lamellosum, Hall, ! 

 1847, which was preoccupied. Hyatt j 

 founded his genus Zitteloceras on this 

 species. 



kirbyi, Whitfield, 1889, Bull. Am. Mus. 



Nat. Hist., vol. 2, p. 57, Calcifer- 



ous Gr. 

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



p. 193. The name was preoccupied by 



d'Archiac & Verneuil in 1842. See C. 



hallanum. 

 laterale, Hall. 1867, 20th Rep. N. Y. Mus. 



Nat. Hist., p. 407, Niagara Gr. 

 ligarius, Billings, 1865, Pal. FOBS., vol. 1 



p. 176, Hud. Riv. Gr. 

 liratum, Hall, 1862, 15th Rep. N. Y. Mus. 



Nat. Hist., p. 72, Ham. Gr. 

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



p. 42, Trenton Gr. 

 lucillus, Hall, 1867, 20th Rep. N. Y. Mus. 



Nat. Hist., p. 406, Niagara Gr. 

 lysander, Billings, 1862, Pal. Foss., vol. 1, 



p. 161, Hud. Riv. Gr. 



FIG. 729. Cyrtoceras magister. 



heclor, Hall, 1879, Pal. N. Y., vol. 5, pt. 2, j 



p. 364, Up. Chemung Gr. 

 hercules, Winchell & Marcy, 1865, (Lit- ; 



uites hercules,) Mt-m. Boat. Soc. Nat. j 



Hist., p. 102, Niagara Gr. 

 hertzeri, see Gomphoceras hertzeri. 

 huronense, Billings, 1865, Pal. Foss., vol. i 



1, p. 176, Black Riv. or Trenton Grs. 

 infundibulum, Whitfield, 1880, Ann. Rep. 



Geo. Sur. Wis., p. 66, and Geo. Wis., 



vol. 4, p. 300, Niagara Gr. 

 irregulare, Wether by, 1881, Jour. Cin. Soc. 



Nat. Hist., vol. 4, p. 79, Hud. Riv. Gr. 

 ieidorus, Billings, 1865, Pal Foes., vol. 1, p. 



175, Black Riv. or Trenton Gr. 

 janus, see Streptoceras janus. 

 jason, see Gyroceras Jason. 

 juvenale, Billings, 1865, Pal. Foss., vol. 1, j 



pp. 177, 420, Trenton Gr. 



macrostomum, Hall 1847, Pal. N. Y., 

 vol. 1, p. 194, Black Riv. and Tren- 

 ton Grs. 



magister, S. A. Miller, 1875, Cin. Quar. 

 Jour, of Sci., vol. 2, pp. 132, 284, Hud. 

 Riv. Gr. 



marginale, Conrad, 1843, Proc. Acad. Nat. 

 Sci., p. 334. The name was preoccu- 

 pied by Phillips in 1841, and the species 

 is poorly defined. 



markaei, Castelnau, 1843, Systeme Silurien, 

 p. 30, Trenton Gr. Not recognized. 



massiense, Safford, 1869, Geo. of Tenn., 

 p. 290, Nashville Gr. 



matlteri , see Gyroceras matheri. 



maccoyi, Billings, 1859, Can. Nat. and 

 Geo., vol. 4, p. 467 Chazy Gr. 



maximum, see Nautilus maximus, 



mereurius, see Cyrtocerina mercurius. 



