BIBLIOGKAPHIC LIST OF GENERA AND SPECIES. 1311 



Ulrichia bivertex Continued. 



Ulricha? bivertex Ruedemann, Bull. New York State Mus., 162, 1912, p. 120, pi. 9, 



figs. 11, 12. 



Trenton: Covington, Kentucky, and vicinity; Canajoharie, New York. 

 Holotype.Czt. No. 41365, U.S.N.M. 



Ulrichia nodosa (Ulrich). 



Primitia nodosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 134, pi. 10, 



figs. lla-12b. 

 Ulrichia nodosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1891, p. 203 (gen. 



ref .). Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 346, fig. 1658o, o'. 

 Eden- Richmond: Cincinnati, Ohio, and vicinity. 

 Cotypes.C&t. Nos. 41552, 41553, U.S.N.M. 



UNCINULINA Bayle. See Wilsonia Kayser. 



UNCINULUS Bayle. Genotype: Rhynchonella subwilsoni D'Orbigny. 



Uncinulus Bayle, Explic. de la Carte Geolog. France, 4, 1878, Atlas, pi. 11, figs. 



17-200. Waagen, Pal. Indica, 13th ser., 1, 1883, p. 424. (Ehlert, Fischer's 



Man. Conch., 1887, p. 1306. Hall and Clarke, Pal. New York, 8, pt. 2, 1893, 



% p. 195; 13th Ann. Rep. New York State Geol., 1895, p. 828. Schuchert, 



Zittel-Eastman Textb. Pal., 1, 1900, p. 324; 2d ed., 1913, p. 397. Williams, 

 Bull. U. S. Geol. Surv., 165, 1900, p. 60. Grabau and Shimer, N. A. Index 

 Fossils, 1, 1907, p. 290. 



Uncinulus convexorus Maynard. 



Uncinulus convexorus Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 368, 



pi. 65, figs. 9-14. 

 Helderbergian (Keyser): Tonoloway, Cash Valley, Cumberland, etc., Maryland; 



near Cherry Run and Keyser, West Virginia; Hyndman, Pennsylvania. 



Uncinulus gordoni Maynard. 



Unsinulusgordpni Maynard, Maryland Geol. Surv., Low. Dev., 1913, p. 367, pi. 65, 



figs. 1-6. 

 Helderbergian (Keyser): Cash Valley, Maryland. 



Uncinulus keyserensis Schuchert and Maynard. 



Uncinuhis keyserensis Schuchert and Maynard, Maryland Geol. Surv., Low. Dev., 



1913, p. 368, pi. 65, figs. 7, 8. 

 Helderbergian (Keyser): Cumberland, Tonoloway, etc., Maryland; Keyser, West 



Virginia. 



Uncinulus nucleolatus (Hall). 



Rhynchonella nucleolata Hall (part), 10th Ann. Rep. New York State Cab. Nat. 



Hist., 1857, p. 68; Pal. New York, 3, 1859, p. 227, pi. 31, figs. 2f-2y (not figs. 



la-lc=U. globulus; Id, f, and 2a-e=?U. globulous). 



Uncinulus nucleolata Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 199. 

 Uncinulus nucleolatus Schuchert and Maynard, Maryland Geol. Surv., Low. Dev., 



1913, p. 365, pi. 64, figs. 16, 17. 

 Helderbergian: New York (New Scotland); Keyser, West Virginia (Keyser). 



Uncinulus nucleolatus angulatus Maynard. 



Uncinulus nucleolatus var. angulatus Maynard, Maryland Geol. Surv., Low. Dev., 



1913, p. 366, pi. 64, figs. 18-20. 

 Helderbergian? (Keyser?): Cumberland, Maryland. 



