BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 419 



DICRANOPELTIS Hawle and Corda. Genotype: Lichas scabra Beyrich. 



Dicranopeltia Hawle and Corda, Abh. d. k. bohmischen Gesell. Wiss., 5, 1847 

 (extract), p. 141, pi. 7, fig. 75. — Gurich, Neues Jahrb. Min., Geol. Pal., 14, 

 Beilage-Band, 1901, p. 525. — Reed, Quart. Jour. Geol. Soc. London, 58, 

 1902, pp. 63, 61; sec. B, pp. 71, 82.— Grabau and Shinier, N. A. Index Fossils, 

 2, 1910, p. 310. 



Dlcranopeltis arkansaua (Van Ingen). 



Arges arkansana Van Ingen, School of Mines Quart., 23,' 1901, p. 61, fig. 19, pi. 



figs. 19-21. 

 >*iagaran (St. Clair): St. Clair Springs, Independence County, Arkansas. 



Dicranopeltis decipiens (Winchell and Marcy). 



Lichas breviceps? Hall, Adv. sheets., 18th Rep. New York State Cab. Nat. Hist., 

 1865, p. 30 (not Hall, 1864); 20th Rep. New York State Cab. Nat. Hist., 1867, 

 p. 334, p. 377, pi. 21, figs. 12-14; rev. ed., 1870, p. 424, pi. 21, figs. 12-14. 



Lichas decipiens Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 104, 

 pi. 3, fig. 11. 



Lichas emarginatus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed., 

 1879, p. 199. 



Dicranopeltis decipiens Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 

 2, 1907, p. 237, pi. 22, figs. 10, 11.— Grabau and Shimer, N. A. Index Fossils, 2, 

 1910, p. 311, fig. 1621f, g. 



Niagaran (Racine): Bridgeport, Hawthorn, and Lemont, Illinois; Grafton, Wis- 

 consin. 



Dicranopeltis nasuta Weller. 



Dicranopeltis nasuta Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 



1907, p. 240, pi. 22, figs. 5-7. 

 Niagaran (Racine): Milwaukee, Wisconsin. 



Dicranopeltis telleri Weller. 



Dicranopeltis telleri Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 2, 



1907, p. 241, pi. 22, figs. 8-9. 

 Niagaran (Racine): Milwaukee, \\'iscon8in. 



DICRANOPORA Ulrich. Genotype: Ptilodictya internodia Miller and Dyer. 



Dicranopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 152, 166. — 

 Miller, N. A. Geol. Pal., 1889, p. 300.— Ulrich, Geol. Surv. Illinois, 8, 1890, 

 p. 389. — Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, p. 14. — Simpson, 14th 

 Ann. Rep. State Geol. New York for the year 1894, 1897, p. 545.— Nickles 

 and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 49.— Cumings, 32d Ann. 

 Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 745. 



Dicranopora eraacerata (Nicholson). 



Ptilodictya emacerata Nicholson, Ann. Mag. Nat. Hist., 4th ser., 15, 1875, p. 179, 



pi. 14, figs. 3-3b; Pal. Ohio, 2. 1875, p. 261, pi. 25, figs. 5-5b.— Lesley, Geol. 



Surv. Pennsylvania, Rep. P 4, 1889, p. 826, figs. 

 Dicranopora emacerata Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 40. — 



^\^liteaves, Pal. Foss., 3, 1895, p. 118.— Cumings, 32d Ann. Rep. Dep. Geol. 



Nat. Res. Indiana, 1908, p. 827, pi. 32, figs. 13, 13b. 

 Maysville and Richmond: Cincinnati, Ohio, and vicinity; Stony Mountain, 



Manitoba; Anticosti. 



Dicranopora fragilis (Billings). 



Ptilodictya fragilis Billings, Catal. Sil. Foss. Anticosti, 1866, p. 9. 



Stictopora fragilis Whitfield, Geol. Surv. Wisconsin, 4, 1882, p. 253, pi. 11, tig. 24. 



