BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 221 



Chonophyllum solitarium Foerste. 



Chonophyllum Holitarium Foersto, Bull. Geol. Surv. Kentucky, 7, 1906, p. 317, 



pl. 7, fig. 2. 

 Clinton (Waco): North of Estill Springs, Kentucky. 



Chonophyllum vadum Hall. 



Chonophyllum vadum Hall, 12th Ann. Rep. Indiana Dep. Geol. Nat. Hist., 1883, 

 p. 272, pl. 15, figs. 1-4; 35th Rep. New York State Mus. Nat, Hist,, 1884, 

 p. 410 (ext. 1882, p. 6). Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, 

 p. 130, figs. Sherzer, Amer. Geol., 6, 1890, p. 61; Bull. Geol. Soc. Amer., 

 3, 1892, p. 273. 



Niagaran (Louisville): Louisville, Kentucky. 



Chonophyllum (Craterophyllum) viilcanius Foerste. 



Chonophyllum (Craterophyllum) vulcanius Foerste, Bull. Sci. Lab. Denison 



Univ., 14, 1909, p. 101, pl. 1, fig. 12. 

 Niagaran (Brownsport): West of Hope Creek, Perry County, Tennessee. 



[RISTIANIA Hall and Clarke. Genotype: Leptsena subquadrata Hall. 



Christiania Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 298. Miller, N. A. 

 Geol. Pal., 1st App., 1892, p. 687. Hall, llth Ann. Rep. New York State 

 Geol., 1894, p. 290. Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 314; 

 2d ed., 1913, p. 314* 



Christiania subquadrata Hall. 



Leptaena subquadrata Hall, 2d Ann. Rep. New York State Geol., 1883, pl. 46, 



figs. 32, 33. 

 Christiania subquadrata Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 298, 



351, pl. 15, figs. 32, 33; pl. 15A, fig. 36; pl. 20, figs. 18-20; 48th Rep. New 



York State Mus., 2, 1895, p. 351, pl. 6, figs. 13-18; 14th Rep. State Geol. New 



York for 1894, 1897, p. 351, pl. 6, figs. 13-18. 

 Chazyan (Ottosee): Blount County, Tennessee. 



Christiania trentonensis Ruedemann. 



Christiania trentonensis Ruedemann, Bull. New York State Mus., 49, 1901, p. 21, 

 pl. 2, figs. 2-6. Bassler, Bull. Geol. Surv. Virginia, 2a, 1909, pl. 3, figs. 14-16. 



Mohawkian: Rysedorph Hill, Rensselaer County, New York (Rysedorph); Penn- 

 sylvania, Maryland, and Virginia (Chambersburg). 



Cladograpsus Emmons. Genotype: 0. dissimilaris Emmons. 



Cladograpsus Emmons, Amer. Geology, 1, pt. 2, 1855, p. 107. 



Cladograpsus dissimilaris Emmons. 



Cladograpsus dissimilaria Emmons, Amer. Geology, 1, pt, 2, 1855, p. 107, pl. 1, 



fig. 15. 



' ' Taconic " : Locality not given. 

 Observation. Figures and description not sufficient for recognition. 



CLADOGRAPSUS GRACILIS Carruthers. See Nemagraptus gracilis. 



Cladograpsus inaequalis Emmons. 



Cladograpsus inaequalis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 107. 

 Dicranograptus? inaequalis Gurley, Jour.. Geology, 4, 1896, p. 96 (gen. ref.). 

 "Taconic": Parrotsville, Tennessee. 



Observation. Probably a species of Dicranograptus, but description is not 

 sufficient for determination. 



<'i AhOGRAPSUS LINEARIS Carruthers. See Pleurograptua linearis. 



