scHucHERT.] • INDEX AND BIBLIOGRAPHY. 243 



Leptobolus occidentalis Hall. Maquoketa (Ord.). 



Leptobolus occidentalis Hall, Description n. sp. Foss. from Hudson River Group, 



1871, p. 3, pi. 3, fig. 18;— Twenty-fourth Rep. New York State Cab. Nat. Hist., 



1872, p. 227, pi. 7, fig. 18.— Hall and Clarke, Pal. New York, VIII, Pt. I, 

 1892, pi. 3, fig. 7. 



Log. Hawleys Mills, Iowa; Platteville, Wisconsin ; Ottawa, Canada (Ami). 



LeptoccBlia Hall = Aiioplotheca. 

 Leptocoelia propria Hall=Anoplotheca flabellites. 

 Leptoccelia disparilis Hall = Atryi)ina disparilis. 

 Leptoccelia imbricata HaIl = Atrypma imbricata. 



LEPTOSTROPHIA Hall and Clarke. 



Genotype Stropheodonta magiiifica Hall. 

 Leptostrophia Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 288;— Elev- 

 enth Ann. Rep. New York State Geologist, 1894, p. 281. 

 Ohs. This is a subdivision of Stropheodonta. The following species have been 

 referred to it : S. magnifica, S. perplana, S. textilis, S. beckei, S. magniventra, 

 S. junia, S. Irene, S. blainvillei, and S. tullia. 



LINDSTRCEMELLA Hall and Clarke. Genotype L. aspidium H. and C. 



Lindstroemella Hall and Clarke, Extract Pal. New York, VIII, 1890, p. 134;— Pal. 

 New York, VIII, Pt. I, 1892, p. 134 ;— Eleventh Ann. Rep. New York State 

 Geologist, 1894, p. 257. 



Lindstroemella aspidium Hall and Clarke. Hamilton (Dev.). 



Lindstroemella aspidium Hall and Clarke, Extract Pal. New York, VIII, 1890, p. 

 134, pi. 4E, figs. 25-28;— Pal. New York, VIII, Pt. I, 1892, pp. 134, 178, pi. 4E, 

 figs. 25-28, 

 Log. Leonardsville, Hamilton, Darien, etc.. New York. 



LINGTJLA Brugui^re. Genotype Lingnla anatina Lamarck. 



Lingula Brugui(~^re, Eucyclopt^die M(^thodi(iue, I, 1792, pi. 250. — Meek and Hay- 

 den, Pal. Upper Missouri, Smithsonian Cont. to Knowl., XIV, 172, 1804, p. 

 68.— Hall, Pal. New York, IV, 1867, p. 5.— Dall, American Jour. Conch., VI, 

 1870, pp. 153, 154.— Meek, Hayden's U. S. Geol. Survey Terr., IX, 1876, p. 7.— 

 Dall, Bull. U. S. Nat. Museum, 8, 1877, p. 43.— Hall and Clarke, Pal. New 

 York, VIII, Pt. I, 1892, pp. 2, 161.— Winchell and Schuchert, Minnesota 

 Geol. Survey, III, 1893, p. 338.— Hall and Clarke, Eleventh Ann. Rep. New 

 York State Geologist, 1894, p. 226. 



Lingula acuminata Hall = Lin gulepis acuminata. 

 Lingula acutangula Roemer=Lingulepis acutangulus. 



Lingula acutirostris Hall. Clinton (Sil.). 



Lingula acutirostra Hall, Geol. New York; Rep. Fourth Dist., 1843, p. 77, fig. 9 



on p. 76;— Pal. New York, II, 1852, p. 56, pi. 20, fig. 5. 

 Log. Wolcott, New York. 

 Ohs. Based upon a single specimen now lost. 



Lingula sequalis Hall. Trenton (Ord.). 



Lingula .sequalis Hall, Pal. New York, I, 1847, p. 95, pi. 30, tig. 3.— Walcott, Proc. 



U. S. Nat. Mus., XI, 1888, p. 480, fig. 3.— Hall and Clarke, Pal. New York, VIII, 



Pt. I, 1892, p. 9, fig. 4. 

 Log. Middleville, Trenton Falls, and Rome, New York. 



Lingula alba-pinensis Walcott. Upper Devonian. 



Lingula albapinensis Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 108, pi. 2, 



fig. 1. 

 Log. White Pine district, Nevada. 



