314 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. Ibdi.l.87. 



PRODUCTELLA Hall. Genotyi)e Productus subaculeatus Murchison. 



Productella Hall, Twentieth Rep. N. Y. State Cab. Nat. Hist., 1867, p. 245;— Pal. 

 New York, IV, ISilw, p. 153.— Nettelroth, Kentiu-ky Fossil Shells, Mem. Ken- 

 tucky Geol, Survey, 18><9. p. 69.— Hall and Clarke, Pal. New York, VIII, 

 Pt. I, 1892, p. 328;— Eleventh Ann, Rep. N. Y. State Geolojiist, 1894, p. 298. 



Productella arctirostrata Hall. Chemung (Dev.). 



Productus arctirostrata Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 177. 

 Productella arctirostrata Pal. New York, IV, 1867, p. 182, pi. 26, iv^s. 16-23;— 



Second Ann. Rep. N. Y. State Geol., 1883, pi. 48, fig. 36.— Hall and Clarke, 



Pal. New York, VIII, Pt. I, 1892, pi. 17, fig. 36. 

 Loc. .laspcr and Cadiz, New York. 



Productella arcuata Hall. Kiiiderhook (L. Carb.). 



Productus arcuatus Hall, Geol. Survey of Iowa, I, Pt. II, 1858, p. 518, pi. 7, fig. 



4.— Herrick, Bull. Denison Univ., Ill, 1888, p. 31, pi. 3, fig. 18.— Keyes, Geol. 



Survey Missouri, V, 1895, p. 40. 

 Productella arcuata Hall, Second Ann. Rep. N. Y. State Geol., 1883, pi. 48, figs. 



31, 32. 

 Loc. Burlington, Iowa; Granville, Newark, etc., Ohio; Hannibal, Missouri. 

 Obs. See P. cooperensis. 



Productella bialveata Hall. Chemung (Dev.). 



Productella bialveata Hall, Pal. New York, IV, 1867, p. 183, pi. 26, figs. 24-28. 

 Loc. Meadville, Pennsylvania. 



Productella boydi Hall. Chemung (Dev.). 



Productus boydi Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 179, 



figs. 1-3. 

 Productella boydi Hall, Pal. New York, IV, 1867, p. 169, pi. 24, figs. 10-16;— 



Second Ann. Rep. N, Y. State Geol., 1883, pi. 48, fig. 24.— Hall and Clarke, 



Pal. New York, VIII, Pt. I, 1892, pi. 17, fig. 24. 

 Loc. Phillipsburg, Elniira, etc.. New York. 



Productella concentrica (Hall). Kinclerhook (L. Carb.). 



Productus conceutricus Hall, Tenth Rej). N. Y. State Cab. Nat. Hist., 1857, 

 p. 180;— Geol. Survey Iowa, I, Pt. II, 1858, p. 517, pi. 7, fig. 3.— A. Winchell, 

 Proc. Acad. Nat. Sci. Philadelphia, 1862, p. 411;— Ibidem, 1865, p. 114;— 

 Proc. American Philosophical Soc, XII, 1870, p. 249. — Herrick, Bull. Deni- 

 son Univ., Ill, 1888, p. 33, pi. 6, fig. 16. 



Loc. Burlington, Iowa; Port aux Barques, Michigan; Rockford, Indiana; Scio- 

 toville, etc., Ohio. 



Ohs. Compare with Productella shumardana. 



Productella costatula Hall. Chemung (Dev.). 



Productella costatula Hall, Pal. New York, IV, 1867, p. 180, pi. 26, figs. 9, 15; — 

 Second Ann. Rep. N. Y. State Geol., 1883, pi. 48, figs. 18-20, 35.— Hall and 

 Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 17, figs. 18-20, 35. 



Loc. Randolph Conewango, New Albion, etc.. New York. 



Productella costatula strigata Hall. Chemung (Dev.). 



Productella costatula var. strigata Hall, Pal. New Y'ork, IV, 1867, p. 181. 



Loc. Near Cadiz, New York. 

 Productella dumosa Hnll. Hamilton (Dev.). 



Productus (liunnsMs Hall, loiirteoiith Rep. N. Y. State Cab. Nat. Hist., 1861, p. 99. 

 Productella dumosa Hall, Pal. New York, IV, 1867, p. 162, pi. 23, figs. 38-40;— 



Second Ann. Rep. N. Y. Stat(^ Geol., 18X3, pi. 48, fig. 21.— Hall and Clarke, 



Pal. New York, VIII, Pt. 1, 1S92, pi. 17, fig. 21. 

 Loc. Delphi, Bellona, Moscow, Hamilton, etc., New York. 



