scHucHEET.] INDEX AND BIBLIOGRAPHY. 141 



Amboccelia planoconvexa (Shumard) — Continued. 



Spirifera (Martinia) planoconvexa Derby, Bull. Cornell Univ., I, 1874, p. 19, pi. 8, 

 figs. 12, 16, 18; pi. 9, fig. 7.— White, Wheeler's Geogr. Geol. Expl. and Suivey 

 west 100 Merid., IV, 1875, p. 135, pi. 10, fig. 3 ;— Thirteenth Eep. Indiana State 

 Geol., 1884, p, 134, pi. 32, figs. 23, 24.— Herrick, Bull. Denison Univ., II, 1887, 

 p. 46, pi. 1, fig. 12. — Keyes, Geol. Survey Missouri, V, 1895, p. 85. 



Amboccelia planoconvexa Hall and Clarke, Pal. Nevv York, VIII, Pt. II, 1893, p. 56, 



pi. 39, figs. 10-15. 

 Loc. Missouri; Iowa; Illinois; Ohio; Indiana; Kansas; Nebraska; New Mexico; 



Elko Mountain, Nevada; Bomjardim and Itaituba, Brazil. 



Amboccelia prseumbona Hall. Hamilton (Dev.). 



Orthis prseumbona Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 167. 

 AmboccBlia prseumbona Hall, Thirteenth Rep. Ibidem, 1860, p. 71; — Pal. New 



York, IV, 1867, p. 262, pi. 44, figs. 1-6. 

 Loc. Seneca, Cayuga, and Canandaigua lakes, New York. 



Amboccelia spinosa Hall and Clarke. Hamilton (Dev.). 



Amboccelia spinosa Hall and Clarke, Pal. New York, VIII, Pt. II, 1895, pp. 56, 

 363, pi. 39, figs. 16-18.— Clarke, Thirteenth Ann. Eep. N. Y. State Geologist, 

 1895, p. 177, pi. 4, figs. 6-8. 

 Loc. Livingston County, New York. 



Amboccelia subumbona Hall=Martinia subumbona. 



Amboccelia umbonata (Conrad). Marcellus-Chemung (Dev.). 



Orthis umbonata Conrad, Jour. Acad. Nat. Sci. Philadelphia, VIII, 1842, p. 264, 

 pi. 14, fig. 4.— Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 167, 

 figs. 1-3. 



Orthis nucleus Hall, Geol. New York; Rep. Fourth Dist., 1843, p. 180, fig. 8. 



Ambocadia umbonata Hall, Thirteenth Rep. N. Y. State Cab. Nat. Hist., 1860, 

 p. 71 ;— Pal. New York, IV, 1867, p. 259, pi. 44, figs. 7-18.— Nettelroth, Ken- 

 tucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 86, pi. 17, figs. 25, 

 26.— Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, pi. 29, fig. 17; pi. 

 39, figs. 4-9. 



Martinia umbonata Herrick, Geol. Ohio, VII, 1895, pi. 20, fig. 3. 



Loc. New York; Pennsylvania; Falls of Ohio. 



Amboccelia umbonata gregaria Hall = Amboccelia gregaria. 



AMPHIGENIA Hall. Genotype Pentamerus elougatus Vanuxem. 



Amphigenia Hall, Twentieth Rep. N. Y. State Cab. Nat. Hist., 1867, p. 163;— 



Pal. New York, IV, 1867, pp. 374, 382.— Hall and Clarke, Pal. New York, 



VIII, Pt. II, 1893, p. 252;— Thirteenth Ann. Rep. N. Y. State Geologist, 1895^ 



p. 848. 



Amphigenia curta (Meek and Worthen). Oriskany (Dev.). 



Stricklandiuia elongata var. curta Meek and Worthen, Geol. Survey Illinois, III, 



1868, p. 402, pi. 8, fig. 1 ; pi. 9, fig. 5.—? Hall and Clarke, Pal. New York, VIII, 



?t. II, 1893, p. 254. 

 Loc. Union County, Illinois. 



Amphigenia elongata (Yanuxem). Oriskany and Up. Helderberg (Dev.). 



Pentamerus elongatus Vanuxem, Geol. N. Y. ; Rep. Third Dist., 1842, p. 132, 

 tig. 1. — Hall, Geol. N. Y. ; Rep. Fourth Dist., 1843, Tables of Organic Remains. 



Meganteris elongatus Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 123, 

 figs. 1, 2. 



Rensselicria elongata Hall, Twelfth Rep. Ibidem, 1859, p. 38;— Pal. New York, 

 III, 1859, p. 453. 



Stricklandia elongata Billings, Canadian Jour., VI, 1861, p. 267, figs. 91, 92. 



