CYR.] 



CEPHALOPODA. 



433 



acinacellum, Whitfield, 1886, Bull. Am. 



Mus. Nat. Hist., vol. 1, p. 327, Birds- 



eye Gr. 

 semulum, Hall, 1879, Pal. N. Y., vol. 5,pt. 



2, p. 371, Up. Held. Gr. 

 alethes, Billings, 1865, Pal. Foss., vol. 1, p. 



193, Quebec Gr. 

 alternatum, Hall, 1879, Pal. N. Y., vol. 5, 



pt. 2, p. 365, Marcellus Shale. Proposed 



instead of C. undulatum of Hall. 

 ammon, Billings, 1861, Can. Jour., vol. 6, 



p. 361, Corniferous limestone. 

 amcenum, S. A. Miller, 1878, Jour. Gin. 



Soc. Nat. Hist., vol. 1, p. 105, Hud. 



Riv. Gr. 

 amplicorne, Hall, 1867, 20th Rep. N. Y. 



Mus. Nat. Hist., p. 358, syn for C. her- 



cules. 

 annulatum, Hall, 1847. This name was 



preoccupied by Goldfuss in 1832, see C. 



subannulatum. 

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



2, p. 349, Guelph Gr. 

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



196. The name was preoccupied by 



Steininger in 1830, see C. subarcuatum. 

 aristides, Billings, 1865, Pal. Foss., vol. 1, 



p. 316, Quebec Gr. 

 ashmanni, n. sp. Shell small, gently 



curved ; section subelliptical, becoming 



subcircular near the point, the dorsal 



side a little less convex, than the ven- 



tral ; siphuncle near the dorsal side ; 



surface longitudinally furrowed and 



finely sculptured transversely, the fur- 



rows and transverse lines most dis- 



tinct on the ventral side ; there are 

 . eight chambers in the 



specimen figured, 

 which is enlarged 

 one-half diameter ; 

 body chamber un- 



FIG. 728,-Cyrtoce- known. Collected by 

 ras ashmanni. Mr. George Ashmann, 



Indiana, Warsaw Gr., 



and is in tbe collection of Charles Faber. 

 beekmanense, Whitfield, 1889, Bull. Am. 



Mus. Nat. Hist., vol. 2, p. 57, Calcif- 



erous Gr. 



bannisteri, see Trochoceras bannisteri. 

 belus, Billings, 1861, Can. Jour., vol. 6, p. 



361, Corniferous Gr. 

 boycii, Whitfield, 1886, Bull. Am. Mus. 



Nat. Hist., vol. 1, p. 326, Birdseye Gr. 

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



Decade 1, p. 33, Chazy or Black Riv. Grs. 

 bondi, Saftbrd, 1869, Geo. of Tenn., p. 290, 



Nashville Gr. 

 brevicorne, Hall, 1867, 20th Rep. N. Y. 



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

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



196, Trenton Gr. 

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



p. 290. The name was preoccupied by 



Roemer in 1844. See C. subcancellatum. 

 carrollense, Worthen, 1875, Geo. Sur. 111., 



vol. 6, p. 496, Galena Gr. 



cessator, Hall & Whitfield, 1877, U. S. 



Expl. Exped. 40th parallel, vol. 4, p. 



278, Coal Meas. 

 citum, Hall, 1879, Pal. N. Y., vol. 5, p. 372, 



Up. Held. Gr. 



clavatum, see Gomphoceras clavatum. 

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

 tic., p. 85, Niagara Gr. 

 confertissimum, Whitfield, 1886, Bull. Am. 



Mus. Nat. Hist., vol. 1, p. 327, Birds- 

 eye Gr. 

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



p. 70, Up. Magnesian Gr. 

 conoidale, Wetherby, 1881, Jour. Cin. Soc. 



Nat. Hist., vol. 4, p. 78, Hud. Riv. Gr. 

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



vol. 1, p. 195, Trenton Gr. 

 corniculum, Hall, 1862, Geo. Rep. Wis. 



The name was preoccupied by Bar- 



rande in 1848, and again by Eichwald 



in 1860, pee C. tenuistriatum. 

 corydon, Billings, 1866, Catal Sil. Foss. 



Antic., p. 85, Niagara Gr. 

 cretaceum, Whitfield, 1882, Ann. N. Y. 



Acad. Sci., vol. 2, p. 209, Up. Held Gr. 

 curtum, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., p. 468, and Geo. 



Sur. 111., vol. 2, p. 388, Up. Coal Meas. 



Was this name preoccupied bv Eich- 

 wald? 

 dactyloides, Dwight, 1884, Am. Jour. Sci. 



and Arts, 3d ser., vol. 27, p. 255, Cal- 



ciferous Gr. 

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



Sur. of Wis., p. 43, Niagara Gr. 

 densum, Hall, 1879, Pal. N. Y., vol. 5, pt. 



2, p. 363, Ham. Gr. 

 dictys, Billings, 1865, Pal. Foss., vol. 1, p. 



192, Quebec Gr. 

 dictyum, White, 1876, Proc. Acad. Nat. 



Sci., p. 33, Devonian, 

 dilatatum, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., p. 468, and Geo. 



Sur. 111., vol. 2, p. 389, Up. Coal Meas. 

 dorsatum, Swallow, 1858, Trans. St. Louis 



Acad. Sci., vol. 1, p. 197, Permian Gr. 

 eugenium, Hall, 1862, 15th Rep. N. Y. 



Mus. Nat. Hist., p. 70, and Pal. N. Y., 



vol. 5, pt. 2, p. 369, Schoharie grit, 

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



p. 40, Chazy and Black Riv. Grs. 

 exiguum, Billings, 1860, Can. Nat, and Geo., 



vol. 5, p. 172, Trenton Gr. This is 



made the type of the genus Climoceras 



by Hyatt, 

 faberi, James, 1886, Jour. Cin. Soc. Nat. 



Hist., vol. 8, p. 246, Hud. Riv. Gr. 

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



Sur. Can., p. 314, and Can. Org. Rem., 



Decade 1, p. 32, Black Riv. and Tren- 

 ton Grs. 

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



vol. 4, p. 392, Trenton Gr. 

 formosurn, Hall, 1879, Pal. N. Y., vol. 5, 



pt. 2, p. 362, Ham. Gr. 

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



Wis., p. 41, Niagara Gr. 

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



Antic., p. 59, Anticosti Gr. 



