714 BULLETIN 02, UNITED STATES NATIONAL MUSEUM. 



Leptobolus insignls Hall. 



Leptobohi3 iiiMignif Hall, Descrip. n. sp. Foss. from Hudson River Group, 1871, 

 p. 3, pi. 3, fig. 17; 2-4th Rep. New York State Cab. Nat. Hi.st., 1872, p. 227, 

 pi. 7, fig. 17. — Nicholson, Pal. Province Ontario, 1875, p. 85. — Ami, Canadian 

 Rec. Sci., 3, p. 103 (loc. occ.).— Hall and Clarke, Pal. New York, 8, pt. 1, 

 1892, p. 74, pi. 3, figs. 1-6.— Grabau and Shimer, N. A. Index Foseils, 1, 1907, 

 p. 194. 



Utica: MiddlcAdlle, ITtica, etc., New York; Ottawa, Ontario; Cincinnati, Ohio 

 (Fulton V, Macasty Bay, Anticosti (Macasty). 



Leptobolus lepls Hall. 



Leptobolus lepis Hall, Description n. sp. Foss. from Hudson River Group, 1871, 

 p. 3, pi. 3, figp. 19, 20; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 



226, pi. 7, figs. 19, 20.— Hall and ^^'hitfield, Pal. Ohio, 2, 1875, p. 69, pi. 1, 

 figs. 10, 11.— Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 11.— Hall and 

 Clai-ke, Pal. New York, 8, pt. 1, 1892, p. 74, pi. 3, figs. 8-10.— Cumings, 32d 

 Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 911, pi. 34, figs. 6, 6a. 



Trenton (Upper): Cincinnati, Ohio, and virinity. 



Leptobolus lepls ollftonensis Foerste. 



Leptobolus lepis cliftonensis Foerete, Bull. Sci, Lab. Denison Univ., 16, 1910, 



p. 21, pi. 2, figs. 20a-c. 

 Trenton (Hermitage): Clifton, Tennessee. 



Leptobolus occldentalls Hall. 



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

 1871, p. 3, pi. 3, %. 18; 24th Rep. New York State Cab. Nat. Hist., 1872, p. 



227, pi. 7, fig. 18.— Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 3, fig. 7.— 

 Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 194. 



Richmond: Hawleys Mills, Iowa; Platteville, Wisconsin (Maquoketa); Arkansaa 

 and Oklahoma (Sylvan). 



Leptobolus walcotti Ruedemann. 



Leptobolus walcotti Ruedemann, Bull. Nov.- York State Mu.-^., 42, 1901, p. 569, 



pi. 1, figs. 6-12. 

 Chazyan (Normanskill): Mount Moreno, near Hudson, New York; Arkansas; 



Tennessee. 



LErToc(ELi.\ Hall. See Ccelospira Hall. 



Leptoc(eli.\ PISPARILI8 Hall. See Atrypina (lisi>arilis. 



Leptoccelia intermedia Hall. See Atrj-jiina intermedia. 



LEPTODESMA Hall. Genot>-pe: L. potens Hall. 



Leplodesma Hall, Pal., New York, 5. pt. 1. Lam. (adv. copy), 1883, p. 4; ibid., 1, 

 1884, pp. 13, 175; 35th Rep. New York State Mus. Nat. Hist., 1884, pp. 347, 

 40Cc.— Miller, N. A. Geol. Pal., 1889, p. 484.— Jackson, Amer. Nat., 24, 1890, 

 p. 1141; Mem. Boston Soc. Nat. Hist., 4. 1890, p. 381.- Clarke. Amer. Geol., 13, 

 1894, pp. 286-289, figs.- Hind, Mon. Britii^h Carb. Lam., 2, Pal. Soc, 1901, 

 p. 10. 



Leptodesnia rhoinboidea (Hall). 



Avicnla rhomboidoa Hall. Pal. New York, 2, 1852. p. 84, pi. 27, fig^•. 2a. b, c, d. 

 Leptodesnia rhomboideum Wlutfield and Hovey, Bull. Amer. Mus. Nat. Hist., 



11, 1899. pi. 2, p. 158 (gen. ref.). 

 Clinton: New Hartford and Sodus, New York; .Vrisaig, Nova Scotia. 



