BIBUOGEAPHIC LIST OF GENERA AND SPECIES. 33 



Amphicoelia neglecta — Continued. 



Amphiccelia neglecta McChesney, Trans. Chicago Acad. Sci., 1, 1868, p. 41, pi. 9, 

 fig. 2.— Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 358, pi. 5, fig. 

 9a, b. — Wliiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 1895, p. 66 (loo. 

 occ). — Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 

 1904, p. 449, pi. 10, fig. 10. 



Niagai'an: Bridgeport, Illinois; Milwaukee, Wisconsin (Racine); Wabash, In- 

 diana; Ontario (Guelpli). 



Amphicoelia orbiciiloides (Grabau). 



A%dcula? orbiculata Hall (not Hall, 1843) Pal. New York, 2, 1852, p. 284, pi. 59, 



fig. 4. 

 LjTiopecten orbiculoides Grabau, Bull. New York State Mus., 45, 1901, p. 208; 



Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 208. 

 Amphicoelia orbiculata Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, 



pt. 2, 1899, p. 156 (gen. ref.). 

 Clinton (Rochester): Rochester, Niagara, etc., New York. 



Amphicoelia ulrichi Maynard. 



Amphicoelia ulriclii Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 453, 



pi. 75, figs. 8-10. 

 Helderbergian (Keyser): Keyser, West Virginia. 



Amphidesma delafieldi Castelnau. Not recognized. 



Amphidesma delafieldi Castelnau, Sil. Syst., 1843, p. 44, pi. 14, fig. 10. 

 Ordovician or Silurian: New York. 



AMPHIGRAPTUS Lapworth. Genotype: Graptolithus divergens Hall. 



Amphigi-aptus Lapworth, Geol. Mag., 10, 1873, p. 559.' — Zittel, Handb. Pal., 1, 

 1879, p. 298.— TuUberg, Sveriges Geol. Unders., Ser. C, No. 55, 1883, p. 12.— 

 Wiman, Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, No. 4, 1896, p. 266.— Koken, 

 Die LeitfossiUen, Leipzig, 1896, p. 328. — Roemer and Freeh, Leth. geog., 1 

 Theil. Leth. Pal., 1, 3 Lief., 1897, p. 587.— Files and Wood, Mon. British 

 Grapt., Pal. Soc, 1903, p. 121. — Ruedemaun, Mem. New York State Mus., 

 11, pt. 2, 1908, p. 270. 



Amphigraptus divergens (Hall). 



Graptolithus divergens Hall, Pal. New York, 3, 1859, p. 509, fig. 9; 12th Ann. 

 Rep. New York State Cab. Nat. Hist., 1859, p. 57, fig. 9.— Canadian Org. Rem., 

 Geol. Surv. Canada, dec. 2, 1865, p. 13, fig. 11. — Walcott, Trans. Albany 

 Inst., 10, 1883, p. 35 (Adv. sheets 1879). — Lesley, Geol. Sur\% Pennsylvania, 

 Rep. P 4, 1889, p. 264, fig. 



Graptolithus (Coenograptus) divergens Hall, 20th Ann. Rep., New York State 

 Cab. Nat. Hist., 1868, p. 179, fig. 12; p. 226; rev. ed., 1868, p. 210, fig. 12; 

 p. 223. 



Coenograptus (?PIeurograptus,? Pterograptiis) divergens, Roemer and Freeh, 

 Leth. geog., Leth. Pal., 1, 1897, p. 587. 



Amphigraptus divergens Lapworth, Geol. Mag., 10, 1873, p. 559; Cat. West Scot, 

 Foss., 1876, p. 5, pi. 1, fig. 70; Quart. Jour. Geol. Soc. London, 34, 1878, p. 

 331; Ann. Mag. Nat. Hist., 6, 1880, p. 18; Trans. Royal Soc. Canada, 5, sec. 

 4, 1886, p. 184.— Walcott, Bull. Geol. Soc. Amer., 1, 1890, p. 338.— Files and 

 Wood, Mon. British Grapt., pt. 3, 1903, p. 122, fig. 73, pi. 18, fig. 1.— Ruede- 

 mann Mem. New York State Mus., 11, pt. 2, 1908, pp. 271-272, figs. 187-190, 

 pi. 15, figs. 2, 3. 



Chazyan: Kenwood and Glenmont, New York (Normanskill); England and Scot- 

 land (Hartfell). 



84243°— Bull. 02—15 3 



