72 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Arthropora cleavelandl (James). 



Ptilodictya cleavelandi James, Paleontologist, No. 5, 1881, p. 38. 



Ptilodictya grahami James, Paleontologist, No. 5, 1881, p. 39. 



Btilodictya dubia James, Paleontologist, No. 5, 1881, p. 40. 



Arthropora shafferi-cleavelandi Nickles and Bassler, Bull. U. S. Geol. Surv., 173 



1900, p. 171. 

 Arthropora cleavelandi Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 14, pi. 3, figs. 



13-16; pi. 4, fig. 6. Comings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 



1908, p. 766, pi. 26, fig. 10. 

 Eden: Cincinnati, Ohio, and vicinity. 



Arthropora kentuckiensis (James). 



Ptilodictya kentuckyensis James, Paleontologist, No. 5, 1881, p. 38. 



Arthropora kentuckiensis Bassler, Proc. U. S. Nat. Mus., 30, 1906, p. 15, pi. 4, 



fig. 5. 

 Trenton (Upper): Ohio River bank opposite Cincinnati, Ohio. 



Arthropora reversa ITlrich. 



Arthropora reversa Ulrich, Geol. Minnesota, 3, 1893, p. 178, pi. 14, fig. 26. 

 Trenton (Prosser): St. Paul, Minnesota. 

 ITolotype.C&t. No. 43502 U.S.N.M. 



Arthropora shafferi (Meek). 



Ptilodictya (Stictopora) Shafferi Meek, Proc. Acad. Nat. Sci. Philadelphia, 1872, 



p. 317; Pal. Ohio, 1, 1873, p. 69, pi. 5, figs. la-c. 

 Ptilodictya shafferi Nicholson, Pal. Prov. Ontario, 1875, p. 33, fig. 4. 

 Stictopora shafferi Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1890, p. 1069, figs. 

 Arthropora shafferi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 167, pi. 7, 



figs. 10, 10a. Miller, N. A. Geol. Pal., 1889, p. 293, figs. 453-455. Ulrich, 



Geol. Surv. Illinois, 8, 1890, p. 308, fig. 3e. Grabau and Shimer, N. A. Index 



Fossils, 1, 1907, p. 157. Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 



1900, p. 171. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, 



p. 767, pi. 26, fig. 9. 

 Crateripora erecta Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 29, pi. 7, 



figs. 29, 29a; 5, 1882, p. 151. 

 Stromatopora(?) lichenoides James, Paleontologist, No. 3, 1879, p. 18; Jour. 



Cincinnati Soc. Nat. Hist., 9, 1886, p. 251; 15, 3892, pt. 3, p. 90. Bassler, 



Proc. U. S. Nat. Mus., 30, 1906, p. 56. 

 Maysville (Bellevue, Corryville): Cincinnati, Ohio, and many localities in Ohio, 



Indiana, Kentucky, and Tennessee. 

 Plesiotypes.Czt. Nos. 43630, 43646 U.S.N.M. 



ARTHROPORA SHAFFERI-CLEAVELANDI Nickles and Bassler. See Arthropora cleave- 

 landi. 



Arthropora simplex Ulrich. 



Arthropora simplex Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 

 1886, p. 65; Geol. Minnesota, 3, 1893, p. 177, pi. 14, figs. 12-21. Grabau and 

 Shimer, N. A. Index Fossils, 1, 1907, p. 157, fig. 208g. Bassler, Bull. U. S. 

 Nat. Mus., 77, 1911, p. 120, 121, fig. 16. 



Black River (Decorah): Minneapolis, St. Paul, etc., Minnesota; Decorah, Iowa, 



Ordovician (Wassalem) : Uxnorm, Esthonia, Russia. 



Coupes. Cat. No. 43503, U.S.N.M. 



ARTHRORHACHIS Hawle and Corda. Genotype: Battus tardus Barrande. 



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

 (extract), 1847, p. 114, pi. 6, fig. 60. Raymond, Ottawa Naturalist, 26, 1913, 

 p. 3. 



