32 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



AMPHERISTOCRINUS Hall. Genotype: A. typus Hall 



Ampheristocrinus Hall, 11th Ann. Rep. Indiana Dept. Geol. Nat. Hist., 1882, p. 

 278, fig.— Trans. Albany Inst., 10, 1883, p. 67, fig. (Preliminary notice, 1879). 

 — Wachsmuth and Springer, Proc. Acad. Nat. Sci. Pliiladelphia, 1886, pp. 

 115, 143.— Miller, N. A. Geol. Pal., 1889, p. 223.— Bather, Ann. Mag. Nat. 

 Hist., 6th ser., 5, 1890, p. 332, pi. 14, fig. 18; Treatise on Zoology, pt. 3, Echi- 

 noderma, London, 1900, p. 173.— Weller, Bull. Chicago Acad. Sci., Nat. Hist. 

 Surv., 4, pt. 1, 1900, p. 67. 



Ampheristocrinus? calyx (Hall). 



Poteriocrinns? calyx Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1882, 

 p. 266, pi. 15, fig. 14; Trans. Albany Inst., 10, 1883, p. 66 (Preliminary notice, 

 1879)._Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 740, fig. 



Niagaran (Waldron): Waldron, Indiana. 



Ampheristocrinus dubius Weller. 



Ampheristocrinus dubius Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 67, pi. 14, 



fig. 11. 

 Niagaran (Racine): Romeo, Illinois. 



Ampheristocrinus typus Hall. 



Ampheristocrinus typus Hall, 11th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 

 1882, p. 278, pi. 15, figs. 17, 18; Trans. Albany Inst., 10, 1883, p. 67 (Prelimi- 

 nary notice, 1879).— Miller, N. A. Geol. Pal., 1889, p. 223, text fig. 243.— 

 Weller, Bull. Chicago Acad. Sci., 4, 1900, p. 68. 



Niagaran (Waldron): Waldron, Indiana. 



AMPHICCELIA Hall. Genotype: A. leidyi Hall. 



Amphicoelia Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, (extras, 1865) 



p. 339; Rev. ed., p. 386.— Meek and Worthen, Geol. Surv. Illinois, 2, 1866, 



p. 339, footnote; 3, 1868, p. 357.— Meek, Amer. Jour. Sci. Arts, 2d ser., 44, 



1867, p. 173, footnote.— Miller, N. A. Geol. Pal., 1889, p. 461. 



Amphicoelia costata (Hall and Whitfield). 



Amphicoelia (Leptodomu.s?) costata Hall and Whitfield, Geol. Surv. Ohio, Pal., 



2, 1875, p. 140, pi. 7, fig. 23. 

 Amphicoelia costata Miller, N. A. Geol. Pal., 1889, p. 461, fig. 773. 

 Niagaran (Cedarville): Cedarville, Greene County, Ohio. 



Amphiccelia leidyi Hall. 



Ampliicoelia leidyi Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras, 



1865), p. 339, pi. 14 (5), figs. 13-15, p. 387; Rev. ed., 1870, p. 387, pi. 14, figs. 



13-15; p. 431, fig.; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, 



pi. 27, figs. 1, 2; mus. ed. 1879, p. 171, pi. 27, figs. 1, 2; 11th Ann. Rep. 



Indiana Dep. Geol. Nat. Hist., 1882, p. 313, pi. 28, figs. 1, 2. 

 Leptodomus (Amphicoelia) leidyi WTiitfielo, Geol. Wisconsin, 4, 1882, p. 357 



(gen. ref.) 

 Niagaran: Racine and Wauwatosa, Wisconsin; Bridgeport, Illinois (Racine); 



Waldron, Indiana; and Newsom, Tennessee (Waldron). 



Amphicoelia neglecta (McChesney). 



Ambonychia neglecta McChesney, Desc. New Fossils, 1861, p. 88. 



Pterinea neglecta Winchell and Many, Mem. Boston Soc. Nat. Hist., 1, 1865, 



pp. 96, 108. 

 Pterinea (Ambonychia) neglecta McChesney, Plates lUust. New Sp. Fossils, 



1865, pi. 9, figs. 2-2b. 

 Leptodomus ueglectus Whitfield, Geol. Wisconsin, 4, 1882, p. 292, pi. 18, figs. 3, 4. 



