BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 715 



LEPTOBOMl S Mr avpe: L. fragilis M 



Leptodomus McCoy, Syn. Char. Carb. Foss. Ireland, 1844, p. 66; British Pal. 

 Rocks and Foss., 1854, p. 277. Pictet, Traitede Pal., 2d ed., 3., 1855, p. 531. 

 Billings, Proc. Portland Soc. Nat. Hist., 1, 18G3, p. 117. Winchell 

 Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 108. 7. 

 2, Munich, 1881, p. 129. Miller, N. A. Geol. Pal., Is . Die 



Leitfossilien, Leipzig, 1896, p. 526. 



Loptodomus (Sanguinolites) aratus Hall. 



Leptodomus (Sanguinolites) aratus Hall, Canadian Nat. Geol., 5, I860, p. L52. 



Dawson, Acadian Geol., 2d ed., 1868, p. 603. 

 Silurian: Arisaig, Nova Scotia. 



LEPTODOMUS (AMPHICOZLIA) LEIDYI Whitfield. See Amphicoelia leidyi. 



LEPTODOMUS NEGLECTUS Whitfield. See Amphico?lia neglecta. 

 LEPTODOMUS UNDULATUS Whitfield . See Ambonychla undulata. 



LEPTOGRAPTUS Lapworth. Genotype: Graptolithus flaccidus Hall. 



Lcptograptus Lapworth, Geol. Mag., 10, 1873, p. 558. Zittel, Handb. V 



Munich, 1879, p. 298. Tullberg, Sveriges Geol. Unders., Ser. C, No. 55, 

 1883, pp. 12, 14. Koken, Die Leitfossilien, Leipzig, 1896, p. 328. Wiman, 

 Bull. Geol. Inst. Univ. Upsala, 2, pt. 2, 1896, p. 266. Walther, Zeits. geol. 

 Gesell., 49, 1897, p. 251. -Roomer and Freeh, Leth. geog., 1, Theil, Leth. 

 Pal., 1, 3 Lief., 1897, p. 591; Zittel-Eastman Textb. Pal., 1, 1900, p. 118. 

 Elles and Wood, Mon. British Grapt,, Pal. Soc., 1903, p. 104. Ruedemann, 

 Mem. New York State Mus., 11, pt. 2, 1908, p. 260; Zittel-Eastman Textb. 

 Pal.,2ded.,1913,p.l30. 



Leptograptus annectans (Walcott). 



Graptolithus annectans Walcott, Trans. Albany Inst., 10, 1883 (adv. sheets 1879), 



pp. 20, 35, pi. 1, figs. 2, 2a. 

 Leptograptus annectans Lapworth, Trans. Roy. Soc. Canada, 4, 1886, 183. Ami, 



Can. Rec. Sci., 9, 1893, 180. Ruedemann, Mem. New York State Mus.,Jl, 



pt. 2, 1908, pp. 264-266, pi. 14, fig. 5; figs. 180-183. 

 Graptolithus tenuis? Ulrich, Cat. Foss. Cincinnati group, 1880. 

 Utica: Holland Patent, New York; Cincinnati, Ohio, and vicinity. 

 Pksiotype.C&t. No. 54274, U.S.N.M. 



Leptograptus flaccidus (Hall). 



Graptolithus flaccidus Hall, Geol. Surv. Canada, dec. 2, 1865, p. 143, pi. 2, figs. 



17-19. 

 Graptolithus (Monoprion) flaccidus Hall, 20th Rep. New York State Cab. Hist., 



1868, pi. 3, figs. 10, 11; rev. ed., 1870, pi. 3, figs. 10, 11; p. 223. 

 Leptograptus flaccidus Gurley, Jour. Geol., 4, 1896, p. 99 (gen. ref.). Elles and 



Wood, Mon. British Grapt,, Pal. Soc., 1903, p. 106, figs. 62a-g; pi. 14, figs. la-g. 

 Trenton (Collingwood): Lake St. John, east from Blue Point, Quebec. 



Leptograptus flaccidus spinifer Elles and Wood. 



Leptograptus flaccidus var. spinifer Elles and Wood, Mon. British Grapt., pt. 3, 



1903, Pal. Soc., 1903, p. 108, pi. 14, figs. 2a-c. 

 Leptograptus flaccidus var. spinifer mut. trentonensis Ruedemann, Mem. New 



York State Mus., 11, pt. 2, 1908, pp. 262, 263, pi. 14, figs. 8, 9; text figs. 



176-178. 

 Ordovician: England (Hartfell); Glenmont and Mount Moreno, New York (Nor- 



manskill) . 



