310 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. [bull. 87. 



Platystrophia laticosta INIeek — Continued. 



Orthis laticosta Miller, Cinciuuati Quart. Jour. Sci., II, 1875, p. 27. 

 Platy.stropliia bilbrata var. laticosta Hall and Clarke, Pal. Now York, VIII, Pt. 



i, 1802, p. 223, pi. 5B, ligs. 5-9 

 Loc. Cinoinnati, etc., Ohio. 



Platystrophia lynx (Eiclnvald). Lorraine (Ord.). 



Tero))ratula lynx Eiclnvald. .Skiz/.e von Podolis, 1830, p. 202. 



Deltbyris lynx (partim) Hall, Pal. New York, I, 1847, p. 133, pi. 32D, lig. 1.— 



Kogers, Geol. Pennsylvania, II, Pt. II, 1858, p. 820, lig. 616. 

 Orthis (Platystrophia) Itiforata var. lynx Meek, Pal. Ohio, I, 1873, p. 114, pi. 10, 



tig. 1.— Hall, Second Ann. Kep. N. Y. State Geol., 1883, pi. 35, »igs. 9, 10, 15. 

 Orthis lynx (partim) Miller, Cincinnati Quart. Jour. Sci., II, 1875, p. 25. 

 Orthis hiforata Nicholson, Pal. Province Ontario, 1875, p. 16, lig. 5. 

 Orthis (Platystrophia) lynx Ilall, Second Ann. Rep. N. Y. State Geol., 1883, pi. 



34, iig. 30. 

 Platystrophia hilorata var. lynx Hall and Clarke, Pal. New York, VIII, Pt. I, 



1892, pp. 202, 223, pl.5B, ligs. 1-4. 

 Loc. Cincinnati, Ohio, and elsewhere in the Ohio Valley. 



Platystropliia. regularis tSlialer= Platystrophia biforata. 

 PLECTAMBONITES Pander. Genotype P. planissima Pander. 



Plectanibonites Pander, Beitrage zur Geognosie des Ruas. Rciches, 1830, p. 90, pi. 

 3, tigs. 8, 16; pi. 28, lig. 19.— Hall and Clarke, Pal. New York, VIII, Pt. I, 



1892, p]). 236, 295.— AVinchell and Schuchert, Minnesota Geol. Survey, III, 



1893, p. 413. — Hall and Clarke, Eleventh Ann. Rep. N. Y. State Geologist, 



1894, p. 290. 



Plectanibonites area Shaler= Plectanibonites transversalis. 

 Plectambonites gibbosus Winchell and Schuchert. Trenton (Ord.). 



Plectanibonites gibbosa W. and S., American Geol., IX, 1892, p. 288; — Minnesota 

 Geol. Survey, III, 1893, p. 416, pi. 32, figs. 13-17. 



Loc. Mantorville, Old Concord, and near Cannon Falls, Minnesota. 



Plectambonites glaber Shaler. Auticosti (Sil.). 



Plectambonites glaber Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 64. 

 Lepticna glabra Foerste, Proc. Boston Soc. Nat. Hist., XXIV, 1890, p. 294. 

 Loc. Anticosti. 



Plectambonites plicatellus (Ulrich). Utica (Ord.). 



Lept;ena plicatella Ulricli, .lour. Cincinnati Soc. Nat. Hist., I, 1879, p. 15, pi. 7, 



fig. 12. 

 Plectambonites plicatella Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 



15A, figs. 34, 35. 

 Loc. Cincinnati, Ohio; Covington, Kentucky. 



Plectambonites productus Hall and Clarke. Niagara (Sil.). 



Plfctambonitt's producta Hall and Clarke, Pal. New York, VIII, Pt. II, 1895, p. 



360, pi. 81, figs. 23-25. 

 L^oc. Yellow Springs, Ohio. 



Plectambonites sericeus (Sowerby). Trenton to Clinton (Ord.-Sil.). 



Leptaiia sericea J. de C. Sowerby, Murchisou's Silurian System, 1839, pi. 19, tigs. 

 1, 2.— Hall, Pal. New York, 1, 1847, pp. 110, 287, pi. 31B, fig. 2 ; pi. 79, iig. 3 ;— 

 Ibidem, II, 18.52, p. 59, pi. 21, fig. 1.— Billings, Canadian Nat. Geol., I, 1856, 

 ]). II, lig. 2.— Rogers, Geol. Pennsylvania, II, Pt. II, 1858, p. 818, fig. 599.— Bill- 

 ings, (ieol. Canada, 1863, p. 163, fig. 139.— Meek, Pal. Ohio, I, 1873, p. 70, pi. 5, 

 fig. 3.— Miller, Cincinnati Quart. Jour. Sci., II, 1875, p. 57.— Kayser, Pal.e- 

 outographica, Snppl., Ill, 1876, p. 21, pi. 3, fig. 19.— Hall, Second Ann. Rep. 



