scHucHERT.] INDEX AND BIBLIOGRAPHY. 271 



Monomorella greenei Hall and Clarke. Niagara (Sil.). 



Mononiorella greenii Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 42, 



174, pi. 4D, figs. 5-10. 

 Loc. Near Grafton, Wisconsin ; Risingsun, Ohio. 



Monomorella kingi Hall and Clarke. Magara (Sil.). 



Monomorella kingi Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 42, 



174, pi. 4D, figs. 1, 2. 



Loc. Near Cedarburg, Wisconsin ; Hawthorne, Illinois. 



Monomorella newberryi Hall and Whitfield. Niagara (Sil.). 



Monomorella newberryi Hall and Whitfield, Pal. Ohio, II, 1875, p. 131, pi. 7, figs. 



I, 2.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 4C, figs. 1, 2. 

 Loc, Genoa, Ohio. 



Monomorella orbicularis Billings. Guelpli (Sil.). 



Monomorella orbicularis Billings, Canadian Nat. Geol., n. ser., VI, 1871, p. 221;— 



American Jour. Sci., 3d ser.. Ill, 1872, p. 359.— Davidson and King, Quart. 



.Jour. Geol. Soc. Loudon, XXX, 1874, p. 1.58, pi. 17, fig. 10. 

 Monomorella cuf. orbicularis Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, 



pi. 4C, figs. 3-5. 

 Loc. Hespelar, Ontario; near Grafton, Wisconsin. 



Monomorella ortoni Hall and Clarke. Magara (Sil.). 



Monomorella ortoni Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 42, 



175, pi. 4C, figs. 14, 15. 



Loc. Risingsun, Wood County, Ohio. 



Monomorella ovata Whiteaves. Guelph (Sil.). 



Monomorella ovata Whiteaves, Pal. Fossils, III, 1884, p. 5, pi. 2, fig. 1 ; pi, 8, 



fig. 1.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 42, pi. 4D, figs. 



13-15. 

 Loc. Durham, Ontario. 



Monomorella ovata lata Whiteaves. Guelph (Sil.). 



Monomorella ovata var. lata Whiteaves, Pal. Fossils, III, 1884, p. 6, pi. 2, fig. 



2; pi. 8, fig. 2.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 4, figs. 



II, 12; pi. 4C, figs. 17, 18. 



Loo. Durham, Ontario; Hawthorne, Illinois. 



Monomorella prisca Billings. Guelph (Sil.). 



Monomorella prisca Billings, Canadian Nat. Geol, n. ser., VI, 1871, p. 221; — Amer- 

 ican Jour. Sci., 3d ser.. Ill, 1872, p. 359. — Davidson and King, Quart. Jour. 

 Geol. Soc. London, XXX, 1874, p. 156, pi. 17, figs. 5-8.— Nicholson, Pal. Prov. 

 Ontario, 1875, p. 68, fig. 38.— Hall and Clarke, Pal. New York, VIII, Pt. I, 

 1892, pi. 4C, figs. 6-13. 



Loc. Hespelar and Flora, Ontario; Risingsun, Wood County, Ohio; Hawthorne, 

 Port Byron, and Cicero, Illinois. . 



NEWBERRYA Hall. Genotype Rensselaeria ? johanni Hall. 



Rensselandia Hall, Pal. New York, IV, 1867, p. 385. 



Newberria Hall, Cont. Canadian Pal., I, 1891, p. 236;— Tenth Ann. Rep. N. Y. 

 State Geol., 1891, p. 91 (extract, p. 4).— Hall and Clarke, PaL New York, VIII, 

 Pt. II, 1893, p. 261 ;— Thirteenth Ann. Rep. N. Y. State Geologist, 1895, p. 851. 



Ohs. It is unfortunate that Rensselseria johanni is the type for two generic 

 names. Adhering strictly to the rules of nomenclature Rensselandia will 

 take precedence over Newberrya. The first term is, however, improperly 

 constructed and is without meaning. 



