572 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Gypidula (Sieberella) galeata — Continued. 



Gjqiidiila (Sieberella) galeatus Kindle and Breger, 28tli Ann. Rep. Dep., Geol. 

 Nat. Res. Indiana, 1904, p. 437, pi. 2, figs. 20, 21, 23-29.— Grabau and Shimer, 

 N. A. Index Fossils, 1, 1907, p. 278, fig. 388. 

 Devonian: Etirope; New York; Maryland; Pennsylvania; New Brunswick; etc. 

 Identified in Niagaran at Delphi, Indiana, and in the Monroan of Michigan, 

 both probably erroneously. 



Gypidula globulosa (Nettelroth). 



Pentamerus globiilosus Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. 



Surv., 1889, p. 54. 

 Gypidula globulosa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226. 

 Niagaran (Louisville) : Louis\alle, Kentucky. 

 Cotyj^es.— Cat. No. 51339, U.S.N.M. 



Gypidula knotti (Nettelroth). 



Pentamerus knotti Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. 



Surv., 1889, p. 56, pi. 32, figs. 9-12. 

 Gypidula knotti Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226. 

 Niagaran (Louisville): Louisville, Kentucky. 

 Eolotype.—C&t. No. 51354, U.S.N.M. 



Gypidula (Sieberella) nucleus (Hall and ^Tiitfield). 



Pentamerus galeatus Hall and Whitfield, 24th Rep. New York State Cab. Nat. 



Hist., 1872, pp. 197, 200a. 

 PentamerUB nucleus Hall and Whitfield, 27th Rep. New York State Cab. Nat. 



Hist., 1875, pi. 9, figs. 30-32.— Nettelroth, Kentucky Fossil Shells, Mem. 



Kentucky Geol. Surv., 1889, p. 59, pi. 27, figs. 25-27; pi. 33, figs. 27-33. 

 Sieberella nucleus Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 247, pi. 72, 



figs. 1-3. 

 Gypidula nucleus Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226. 

 Gypidula (Sieberella) nucleus. Kindle and Breger, 28th Ann. Rep. Dep. Geol. 



Nat. Res. Indiana, 1904, p. 438, pi. 2, figs. 18, 19. 

 Niagaran: Louisville, Kentucky (Louisville); Georgetown, Indiana. 

 Plesiotypes.— Cat. No. 51328, U.S.N.M. 



Gypidula (Sieberella) roemeri (Hall and Clarke). 



Pentamerus galeatus Roemer (not Dalman), Sil. Fauna West. Tennessee, 1860, p. 



73, pi. 5, fig. 14. 

 Sieberella -roemeri Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 247, pi. 72, 



fig. 6; 48th Rep. New York State Mus., 2, 1897, p. 370, pi. 13, fig. 4; 14th 



Rep. State Geol. New York for 1894, 1897, p. 370, pi. 13, fig. 4. 

 Gypidula roemeri Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 227.— Foerste, 



Jour. Geol., 11, 1903, p. 711 (loc. occ); Bxill. Sci. Lab. Denison Univ., 14, 



1909, p. 70, pi. 3, fig. 51C. 

 Niagaran: Decatur County, Tennessee (Brownsport); ?Newsom, Tennessee 



(Waldron). 



Gypidula simplex Foerste. 



Gypidula simplex Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 70, pi. 3, 



figs. 51A, B. 

 Niagaran (Waldron): Newsom, Tennessee. 



Gypidula subglobosa MajTiard. 



Gypidula sxibglobosa Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 346, 



pi. 62, figs. 20-22. 

 Helderbergian (Keyser): Cash Valley, near Cumberland, Maryland. 



