1050 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



PEOTORHYNCHA ^CQUIRADIATA Hall and Clarke. See Camarotcechia sequiradiata. 

 PROTORHYNCHA DUBIA Hall and Clarke. See Protorhyncha ridleyana. 



Protorhyncha dubia Hall. 



Atrypa dubia Hall, Pal. New York, 1, 1847, p. 21, pi. 4 bis, fig. 5. Emmons, 



Amer. Geology, 1, pt. 2, 1855, p. 192, pi. 3, fig. 23. 



Rhynchonella dubia Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 66. 

 Protorhyncha dubia Hall and Clarke (part), Pal. New York, 2, 1893, p. 180. 



Raymond, Ann. Carnegie Mus., 7, 1911, p. 226. 

 Chazyan: Chazy, New York. 



Observation. Neither defined nor figured so as to be recognizable. As the 

 original type is lost, the name should be dropped. (See Raymond, 1911.) 



Protorhyncha ridleyana (Safford). 



Rhynchonella Ridleyana Safford, Geol. Tennessee, 1869, p. 287 (nom. nud.). 

 Protorhyncha ridleyana Hayes and Ulrich, U. S. Geol. Surv., folio 95, Faunal 



chart, 1903 (gen. ref.). 

 Protorhyncha dubia Hall and Clarke (part), Pal. New York, 8, pt. 2, 1893, p. 



180. 

 Catazyga uphami-australis Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 



31, pi. 2, figs. 19a-b; pi. 3, figs. 14a-c. 

 Stones River (Pierce and Ridley) : Murfreesboro, etc., Tennessee; bottom of gorge, 



High Bridge, Kentucky. 



PROTORTHIS Hall and Clarke. Genotype: Orthis billingsi Hartt. 



Protorthis Hall and Clarke, llth Ann. Rep. State Geol. New York for 1891, 1892, 

 pp. 273, 274; 45th Ann. Rep. New York State Mus., 1892, pp. 589, 590; Pal. 

 New York, 8, pt. 1, 1892, pp. 231-233. Walcott, Proc. U. S. Nat. Mus., 28, 

 1905, pp. 280, 281. Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 211. 

 Walcott, Smiths. Misc. Coll., 53, 1908, pi. 11, and pp. 142, 147; Mon. U. S. 

 Geol. Surv., 51, 1912, p. 738. 



Protorthis? cassinensis Whitfield. 



Protorthis cassinensis Whitfield, Bull. Amer. Mus. Nat. Hist., 9, 1897, p. 173, pi. 



4, figs. 1, 2. Seely, Vermont State Geol. Rep., 7, 1910, pi. 61, figs. 1, 2. 

 Canadian (Beekmantown) : Fort Cassin, Vermont. 



Protorthis? minima Whitfield. 



Protorthis minima Whitfield, Bull. Amer. Mus. Nat. Hist., 9, 1897, p. 178, pi. 4, 



figs. 3, 4. Seely, Vermont State Geol. Rep., 7, 1910, pi. 61, figs. 3, 4. 

 Canadian (Beekmantown) : Fort Cassin, Vermont. 



PROTOSCOLEX Ulrich. Genotype: P. covingtonensis Ulrich. 



Protoscolex Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 89. Miller, N. A. 

 Geol. Pal., 1889, p. 520. Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 15, 

 1892, p. 83. 



Protoscolex covingtonensis Ulrich. 



Protoscolex covingtonensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 1, 1878, p. 



89, pi. 4, fig. 2. 



Eden (Economy): Covington, Kentucky. 

 Holotype. Cat. No. 46537, U.S.N.M. 



Protoscolex inagnus Miller and Faber. 



Protoscolex magnus Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 15, 1892, 



p. 83, pi. 1, figs. 5, 6. 

 Eden (Fulton): First ward, Cincinnati, Ohio. 



