334 SYNOPSIS OF AMERICAN FOSSIL liRACHIOPODA. Ibdll.87. 



Protorhyncha (?) antiquata (Billiugs). Lower Cambrian. 



Camaiclla auticiuata Billings, Pal. Fosailb, I, 1861, ]). 10, lig. 13; — Gool. Vormoiit, 

 II, liSGl, p. Ulit, lig. 353;— Geol. Canada, 1«(J3, v.2M, iig. 290.— Walcott, Bull. 

 U. S. Geol. Survey, 30, 1880, ]>. ll-'2, ])1. 7, lig. 8;— Teuth Auu. Rep. U. S. Geol. 

 Survey, 181)1, p. 613, pi. 72, lig. 3. 



Caniarella ? auticiuata Hall aud Clarke, Pal. New Yoriv, VIII, Pt. II, 1893, p. 220. 



Loc. iSwantou. Vermout. 



Protorhyncha dubia Hall. Chazy (Ord.). 



Atrypa dubia Hall, Pal. New York, I, 1817, p. 21, pi. 4 bis, fig. 5. 

 Rhynclionella dubia Hall, Twelfth Rep. N. Y. State Cab. Nat. Hist., 1859, p. 66. 

 Protorbyneba dubia IlaU aud Clarke, Pal. New York, VIII, Pt. II, 1893, p. 180. 

 Loc. Chazy, New York ; Ilighbridge, Kentucky; Lascassas, Tennessee. 



Protorhyncha (?) minor (Walcott). Lower Oambriau. 



Camarella (f) minor Walcott, Proc. U. S. Nat. Mub., XII, 1889, p. 36;— Tenth 



Ann. Rep. U. S. Geol. Survey, 1891, p. 614, pi. 72, lig. 4.— Hall and Clarke, 



Pal. New York, VIII, Pt. II, 1893, p. 221. 

 Loc. Stissingville, New Y'ork. 

 Obs. May be the type of a new genus. Its affinities arc rather with the Rhyn- 



chonellidu' than with Pentamerid;i'. 



Protorthis Hall and Clarke =I)illingsella. 



Protosiphon Matthew. Genotype P. kempanus Matthew. 



Protosiphon Matthew, Geol. Mag., dec. IV, IV, 1897, p. 70. 



Protosiphon kempanus Matthew. Lower Cambrian. 



Protosiphon kempanum Matthew, (jeol. Mag., dec. IV, IV, 1897, p. 70, ligs. 1-4. 

 Loc. Long Island, Kings County, New Brunswick. 



Protozyga Hall and Clarke=Zygospira. 



Pseudocrania anomala A. Winchell=Orthothetes anomalus. 



PTYCHOSPIRA Hall and C. Genotype Terebratula ferita von Buch. 



Ptychospira Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 112, fig. 102;— 

 Thirteenth Ann. Rep. N. Y. State Geologist, 1895, p. 792. 



Ptychospira sexplicata (White and Whitfield.) Waverly (L. Carb.). 



Retzia sexplicata White and Whitlield, Proc. Boston Soc. Nat. Hist., VIII, 1862, 



p. 294. 

 Ptychosjiira sexplicata Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 



112, pi. 50, ligs. 13, 14; pi. 83, fig. 28. 

 Loc. Burlington, Iowa. 



PUGNAX Hall aud C. Genotype Rhynchonella acuminata (Martin). 

 Pugnax Hall and Clarke, Pal. New ^'ork, VIII, Pt. II, 1893, p. 202 ;— Thirteenth 



Ann. Rep. N. Y. State (ieologlst, 1895, p. 828. 

 Ohs. Subgenus of Hyi^othyris. 



Pugnax (?) dawsoniana (Davidson). Upper (Carboniferous. 



Rhynchonella dawsoniana Davidson, Quart. .Jour. Geol. Soc. London, XIX, 1863, 



p. 172, pi. 9, figs. 13, 14. 

 Rhynchonella ? dawsoniana Dawson, Acadian (ieology, 3d ed., 1878, p. 294, 



tig. 93. 

 Pugnax (?) dawsonianus Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 



214, pi. 62, ligs. 30-33. 

 Loc. Lennox Passage, Nova Scotia. 



