BIBLIOGRAPHIC LIST OP GENERA AND SPECIES. 571 



GRAPTOSPONGIA Ruedemann. Genotype: G. pusilla Ruedomann. 



Graptospongia Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, p. 485. 



Graptospougia pusUla Ruedemann. 



Graptospongia pusilla Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, 



p. 485, figs. 467, 468. 

 Chazyan (Normanskill) : Schuylerville, Saratoga County, New York. 



Greenfieldia Grabau. See Hindella subgenus Greenfieldia. 

 Gypidia unguiformis Ulrich. See Conchidium unguiforme. 

 Gypidula Dalman. See Conchidium Linnaeus. 



GYPIDULA Hall. Genotype: Pentamerus occidentalis Hall. 



GjT)idula Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 163; Pal. 

 New York, 4, 1867, pp. 373, 380.— Zittel, Handb. Pal., 1, 1880, p. 694.— Wal- 

 cott, Mon. U. S. Geol. Surv., 8, 1884, p. 161.— Miller, N. A. Geol. Pal., 1889, 

 p. 346.— Schuchert, Zittel-Eastman Textb. Pal., 1, 1900, p. 322. 



Sieberella (Ehlert, Fischer's Man. Conch., 1887, p. 1311. 



Gypidula and Sieberella Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 245; 

 13th Ann. Rep. New York State Geol., 1895, pp. 845, 846. 



Gypidula (Sieberella) coeymanensis corriganensis Maynard. 



Gypidula (Sieberella) coeymanensis var. corriganensis Maynard, Maryland Geol. 



Surv., Low. Dev., 1913, p. 345, pi. 62, figs. 12-18. 

 Helderbergian (Keyser): Devils Backbone, near Cumberland, Maryland; Key- 



ser. West Virginia. 



Gypidula (Sieberella) coeymanensis prognostica Maynard. 



Gyi^idula (Sieberella) coeymanensis var. prognostica Maynard, Maryland Geol. 



Surv., Low. Dev., 1913, p. 344, pi. 62, figs. 9-11.— Holtedahl, Second Arct. 



Exped. "Fram," 1898-1902, No. 32, 1914, p. 21, pi. 7, fig. 5. 

 Helderbergian (Keyser): Pinto, Cumberland, Hancock, etc., Maryland; Keyser, 



West Virginia; Hyndman, Pennsylvania; Southwestern Ellesmereland, 



Arctic America. 



Gypidula coppingeri (Etheridge). 



Pentamerus coppingeri Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 



594, pi. 25, figs. 2, 3. 

 Gv-pidula coppingeri Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 226. 

 Niagaran: Offley Island, Arctic America. 



Gypidula (Sieberella) galeata (Dalman). 



Atrypa galeata Dalman, Kongl. Svenska, Vet.-Akad. Handl., for 1827, 1828, p. 46, 



pi. 5, fig. 4. — Troost, 6th Geol. Rep. Tennessee, 1841, p. 15. — Vanuxem, Geol. 



New York, Rep. 3d Dist., 1842, p. 117, fig. 1.— Castelnau, Essai Syst. Sil. 



I'Am^riquo Septentrionale, 1843, p. 39, pi. 14, fig. 4. 

 Pentamcms galeatua Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, p. 



105, figs. 1-3.— Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 825, fig. 646.— 



Hall, Pal. New York, 3, 1859, p. 257, pi. 46, fig. 1; pi. 47, fig. 1.— Billings, 



Geol. Canada, 1863, p. 957, fig. 454. — Lesley, Geol. Surv. Pennsylvania, Rep. 



P 4, 1889, p. 616, fig.— Sherzer, Michigan Geol. Sur\'., 7, 1900, pt. 1, p. 224. 

 Pentamenis galeatua var. Whiteaves, Cont. to Canadian Pal., 1, 1891, p. 234. 

 Sieberella galeatua Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 24G, fig. 



175; pi. 72, figs. 7-13. 



