BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 713 



Lept^n'a transversalis var. pkoloxgata Foerste. See Plectambonitea transver- 

 salis prolongatus. 



Lept^na trelobata Owen. See Strophomena trilobata. 



Leptaena unlcostata (Meek and Worthen). 



Leptsena (n. pp.?) Owen, Geol. Surv. Wisconsin, Iowa, Minnesota, 1852, pi. 2B, 

 fig. 3. 



Strophomena unicostata Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 335, 

 pi. 4, fig. 11.— ^Tiitfield, Geol. Wisconsin, 4, p. 262, pi. 12, fig. 14. 



Rafinesquina unicostata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 15A, 

 fig. 39; pi. 20, &g. 25. 



Leptsena unicostata Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 411, 

 pi. 32, figs. 6-9.— "UTiiteaves, Pal. Foss., 3, pt. 3, 1897, p. 174.— Grabau and 

 Shimer, N. A. Index Fossils 1, 1907, p. 226, figs. 2711-]'. 



Richmond: Savannah and Wilmington, Illinois; Delafield and Iron Ridge, Wis- 

 consin; Spring Valley and Granger, Minnesota; Lattners, Iowa; Rapids of 

 the Nelson River, Lake Winnipeg, Manitoba; Texas; etc. 



Leptagoxia McCoy. See Lepteena Dalman. 



LEPTELLA Hall and Clarke. Genotype: Leptsena sordida Billings. 



Leptella Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 293; 11th Ann. Rep. 

 New York State Geol., 1894, p. 277.— Miller, N. A. Geol. Pal., Ist App., 1892, 

 p. 688. 



Leptella decipiens (Billings). 



Leptsena decipiens Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 74, fig. 



67; p. 219 (adv. sheets 1862); Geol. Canada, 1863, p. 231, fig. 243. 

 Leptella decipiens Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 294. 

 Ozarkian or Canadian: Point Levis, Quebec (Levis-Limestone No. 2); four miles 



northeast of Portland Creek, Newfoundland (Quebec — P). 



Leptella sordida (Billings). 



Leptsena sordida Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 73, text 



fig. 66 (adv. sheets 1862); Geol. Canada, 1863, p. 231, fig. 242. 

 Leptella sordida Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 293, pi. 15A, 



figs. 12-16. 

 Ozarkian? (Levis — erratic): Point Levis, Quebec. 



LEPTOBOLUS Hall. Genotype: L. lepisHall. 



Leptobolus Hall, Description n. sp. Fosa. from Hudson River Group, 1871, j). 3; 

 24th Rep. New York State Cab. Nat. Hist., 1872, p. 226.— Miller, Cincinnati 

 Quart. Jour. Sci., 2, 1875, Jan., p. 10. — Nicholson, Rep. Pal. Prov. Ontario, 

 pt. 2, 1875, p. 85.— Zittel, Handb. Pal., 1, 1880, p. 665.— Miller, N. A. Geol. 

 Pal., 1889, p. 348.— Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 73, 165; 

 11th Ann. Rep. New York State Geol., 1804, p. 241.— Schuchert, Zittel- 

 Eastman Textb. Pal., 1, 1900, p. 307. — Matthew, Trans. Roy. Soc. Canada, 

 2d ser., 8, sec. 4, 1902, p. 102. — Grabau and Shimer, N. A. Index Fossils, 1, 

 1907, p. 194. — Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, p. 

 890.— Schuchert, Zittel-Eastman Textb. Pal., 1913, p. 372. 



Leptoboltjs gemmulus Matthew. See Lingulella feniiginea. 



Leptobolus gbandis Matthew. See Lingulella grandis. 



