456 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Diplostenopora sllurlana (Weller). 



Escharopora eiluriana Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 225, pi. 18, 



figs. 6-7; pi. 19, figs. 8, 9. 

 Diplostenopora siluriana Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 



1913, p. 277, pi. 45, figs. 3-6; pi. 48, figs. 1-3; pi. 52, figs. 3-4. 

 Helderbergian: Two miles south Tristates, New York (Decker Ferry); Cash 



Valley, etc., near Cumberland, Maryland (Keyser). 



DIPLOTRYPA Nicholson (part). See Mesotrypa Ulrich. 



DIPLOTRYPA Nicholson. Genotype: Favosites petropolitanus Pander. 



Diplotrypa Nicholson, Pal. Tab. Corals, 1879, p. 292; Genus Monticulipora, 1881, 

 pp. 101, 155. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 153. 

 Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 13. Roemer, Leth. geog., 1, 

 Leth. Pal., 1883, p. 472. Miller, N. A. Geol. Pal., 1889, p. 187. Ulrich, 

 Geol. Surv. Illinois, 8, 1890, pp. 378, 457. Rominger, Amer. Geol., 6, 1890, 

 pp. 116-119. Ulrich, Geol. Minnesota, 3, 1893, p. 285; Zittel's Textb. Pal. 

 (Engl. ed.), 1896, p. 275; also (not Ulrich) p. 104 (in part). Nickles and 

 Bassler, Bull. U.S. Geol. Surv., 173, p. 36. Bassler, Bull. U. S. Geol. Surv., 

 292, 1906, p. 47; Zittel-Eastman Textb. Pal., 1913, p. 338; Bull. U. S. Nat. 

 Mus., 77, 1911, pp. 312, 313. 



Callopora (not HaU) Dybowski, Die Chsetetiden d. Ostb. Silur-Form., 1877, 

 p. 106. 



Diplotrypa? dubia Ulrich. 



Diplotrypa? dubia Ulrich, Geol. Surv. Illinois, 8, 1890, p. 459, pi. 33, figs. 3-3b. 

 Monticulipora dubia J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 1894, 



p. 182. 



Dianulites dubia Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.). 

 Richmond (Fernvale): Wilmington, Illinois. 

 Sections of holotype.Czt. No. 43390, U.S.N.M. 



DIPLOTRYPA INFIDA Ulrich. See Mesotrypa infida. 



Diplotrypa limit aris Ulrich. 



Diplotrypa limitaris Ulrich, Geol. Minnesota, 3, 1893, p. 286, fig. 18. Sardeeon, 



Jour. Geol., 9, 1901, p. 8, pi. A, figs. 3, 4. 



Dianulites limitaris Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.). 

 Trenton (Prosser) : Goodhue County, Minnesota. 

 Holotype.-zt. No. 43534, U.S.N.M. 



DIPLOTRYPA MILLERI Ulrich. See Mesotrypa nummiformis. 



Diplotrypa neglecta Ulrich. 



Diplotrypa neglecta Ulrich, Geol. Minnesota, 3, 1893, p. 287, fig. 19. 

 Dtanulites neglecta Miller, N. A. Geol. Pal., 2d App., 1897, p. 728 (gen. ref.). 

 Trenton (Prosser) : Hader, Minnesota. 

 Holotype.Czt. No. 43533, U.S.N.M. 



DIPLOTRYPA PATELLA Ulrich. See Mesotrypa patella. 

 DIPLOTRYPA QUEBECBNSIS Ami. See Mesotrypa quebecensis. 

 DIPLOTRYPA REGULARIS Foord. See Mesotrypa regularis. 



