80 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



ASCODICTYON Continued. 



and Bassler, Bull. U. S. Geol. Surv., 173, 1900, pp. 19, 172. Ulrich and 

 Bassler, Smiths. Misc. Coll., 45, 1904, p. 285. Bassler, Bull. U. S. Geol. 

 Surv., 292, 1906, p. 14. Grabau and Shimer, N. A. Index Fossils, 1, 1907, 

 p. 117. 



ASCODICTYON RADIANS Vine. See Vinella radiciformis. 

 ASCODICTYON RADICIFORME Vine. See Vinella radiciformis. 



Ascodictyon siluriense Vine. 



Ascodictyon stellatum Vine (not Nicholson and Etheridge), Quart. Jour. Geol. Soc. 



London, 37, 1881, p. 618. 

 Ascodictyon stellatum var. siluriense Vine, Quart. Jour. Geol. Soc. London, 38, 



1882, p. 52, figs. 1, 2; Ann. Mag. Nat. Hist,, 5th ser., 14, 1884, p. 81, fig. 7; 



Proc. Yorkshire Geol. and Polytech. Soc., 9, 1887, p. 184, pi. 12, fig. 6. 

 Ascodictyon siluriense Vine, Proc. Yorkshire Geol. Polytech. Soc., 12, 1892, p. 



88, pi. 2, fig. 1. Ulrich and Bassler, Smiths. Misc. Coll., 45, 1904, p. 286, pi. 



68, figs. 11, 12. Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 14, pi. 4, figs. 



6-8. Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, p. 260, pi. 



46, fig. 2. 

 Silurian: Shropshire, England (Wenlock); Lockport, etc., New York; Ontario, 



Canada (Rochester); Waldron, Indiana; Newsom, Tennessee (Waldron); 



Island of Anticosti (Jupiter Biver). 

 Helderbergian (Keyser): Cash Valley, Maryland. 

 Plesiotypes.C&t. Nos. 43135, 43138, U.S.N.M. 



ASCODICTYON STELLATUM Vine. See Ascodictyon siluriense. 

 ASCODICTYON STELLATUM SILURIENSE Vine. See Ascodictyon siluriense. 



ASPIDOPORA Ulrich. Genotype: Aspidopora areolata Ulrich. 



Aspidopora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 155. Miller, 

 N. A. Geol. Pal., 1889, p. 293. Ulrich, Geol. Surv. Illinois, 8, 1890, p. 373; 

 Geol. Minnesota, 3, 1893, p. 254. Simpson, 14th Ann. Bep. State Geol. New 

 York for 1894, 1897, p. 584. Nickels and Bassler, Bull. U. S. Geol. Surv., 173, 

 1900, p. 29. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 130. 

 Cumings, 32d Ann. Bep. Dep. Geol. Nat. Bes. Indiana, 1908, p. 740. 



Aspidopora areolata Ulrich. 



Aspidopora areolata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 164, pi. 



7, figs. 2-2c. 



Monticulipora areolata J. F. James, ibid., 16, 1894, p. 183. 

 Eden (Fulton) : Cincinnati, Ohio, and vicinity. 

 Cotypes.C&t. No. 43632, U.S.N.M. 



Aspidopora calycula (James). 



Lichenalia? calycula James, Cat. Foss. Cincinnati Group, 1871 (not defined). 

 Chsetetes? calyculus James, Introd. Cat. Foss. Cincinnati Group, 1875, p. 1. 

 Monticulipora (Diplotrypa) calycula Nicholson, Genus Monticulipora, 1881, p. 



165, pi. 4, figs. 4-4b. 



Prasopora calycula Ulrich, Jour. Cincinnati Soc. Nat. Hist., 6, 1883, p. 165. 

 Monticulipora calycula James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 



1888, p. 167. J. F. James, ibid., 16, 1904, p. 184. 

 Aspidopora calycula Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 



173. Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 16, pi. 1, figs. 8-10. 

 Trenton (Upper): Covington, Kentucky, and vicinity. 



