BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 495 



Eridophyllum rugosum — Continued. 



Diphyphyllum rugosum Rominger, Geol. Surv. Michigan, 3, pt. 2, 1876, p. 122, 



pi. 45, fig. 2. — Lambe, Cont. Can. Pal., Geol. Sxirv. Canada, 4, pt. 2, 1901, 



p. 157. 

 Middle Silurian: Gotland; Louisville, Kentucky; CabotsHead, Georgian Bay, etc., 



Ontario (Niagaran). 



Eridophyllum sentum Davis. 



Eridophyllum sentum Davis, Kentucky Fossil Corals, Geol. Siu-v. Kentucky, 



pt. 2, 1885, pi. 51, fig. 4; pi. 108, fig. 1. 

 Niagaran (Louisville): Louisville, Kentucky. 



Eridophyllum Vennori Billings. See Synaptophyllum multicaule. 



Eridorthis Foerste. See Hebertella subgenus Eridorthia. 



ERIDOTRTPA UMch. Genotype: E. mutabilis Uh-ich. 



Batostomella (in part) Uhich, Geol. Surv. Illinois, 8, 1890, pp. 375, 432. 



Eridotrypa Uhich, Geol. IVIinnesota, 3, 1893, p. 204.— Miller, N. A. Geol. Pal., 2d 

 App., 1897, p. 756.— Nickles and Bassler, Bull. U. S. Geol. Siu-^r., 173, p. 32.— 

 Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 29.— Cumings, 32d Ann. Rep. Dep. 

 Geol. Nat. Res. Indiana, p. 745. — Hennig, Archiv. fiir Zool., 4, 21, p. 36. — 

 Grabau and Shimer, N. A. Index Fossils, 1, 1908, p. 134. — Bassler, Bull. U. 

 S. Nat. Mus., 77, p. 242. 



Eridotrypa aedilis (Eichwald). 



Cladopora eedilis Eichwald, Bull. Soc. Nat. Moscou, No. 4, 1855, p. 457; Leth. 



Rossica, 1, 1860, p. 404, pi. 24, figs. 12, 13. 

 Monticulipora gedilis Dybowski, Die Chsetetiden Ostbaltischen Silur-Formation, 



1877, p. 98, pi. 3, figs. 5, 5a. 

 Eridotrypa sediHs Bassler, Bull. U. S. Nat. Mua., 77, 1911, pp. 242, 244, pi. 4, figs. 



5, 5a; figs. 137, 138. 

 Eridotrypa mutabilis Uhich, Geol. Minnesota, 3, 1893, p. 265, pi. 26, figs. 20-32.— 



Sardeson, Jour. Geol., 9, 1901, p. 13, pi. A, fig. 11. — Grabau and Shimer, 



N. A. Index Fosdls, 1, 1907, p. 134, fig. 188f, 190f. 

 Middle Ordovician: Various localities in Esthonia, Russia; Goodhue, Ramsey, 



and Dakota Counties, Minnesota; Wisconsin, Tennessee, Kentucky, Ontario, 



etc. (Black River and Trenton). 

 Plesiotypes. — Cat. No. 43536, U.S.N.M. Cotypes of E. mutabiUs. 



Eridotrypa aedllis minor (Ulrich). 



Eridotrypa mutabilis var. minor Uhich, Geol. Minnesota, 3, 1893, p. 266, pi. 26, 



figs. 20, 21, 29, 30. 

 Eridotryjm sedilis minor Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 245, fig. 139. 

 Middle Ordovician: Cannon Falls, etc., Minnesota (Trenton-Prosser) ; Wesenberg, 



Esthonia, Russia (Wesenl)erg). 

 Cotypes.— Cat. No. 43537, U.S.N.M. 



Eridotrypa briareus (Nicholson). 



Chaetetes briareus Nicholson, Pal. Ohio, 2, 1875, p. 202, pi. 21, 13-13b. 

 Monticuliijora (Monotrypa) l)riareus Nicholson, Genus Monticulipora, 1881, 



p. 198, pi. 2, figs. 5-5c. 

 MonticuUpora briarea James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 



1888, p. 172.— J. F. James, ibid., 16, 1894, p. 191. 

 Monticulipora (Chsetetes) briareus Chamberlin, Geol. Wisconsin, 1, 1883, p. 



172, fig. 



