408 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



DIaphorostoma niagareuse clintoiiense (Foerste). 



Platyceras Niagareuse var. Clintonense Foerste, Geol. Siirv. Ohio, Pal., 7, 1893, 



p. 554, pi. 37a, fig. 8. 

 Clinton: Mifflin town, Juniata County, Pennsylvania. 



Diaphorostoma nlagarense immaturum Savage. 



Diaphorostoma niagarensis var. immatura Savage, Bull. Geol. Surv. IHinois, 23, 



1913, p. 55, pi. 2, fig. 3. 

 Upper Medinan (Girardeau) : Near Thebes, Illinois. 



Diaphorostoma niagarense multllineatum (Calvin). 



Platystoma niagarense var. multilineatum Calvin, Bull. Lab. Nat. Hist. State 



Univ. Iowa, 1, 1890, p. 177, pi. 2, figs. 4a-c. 

 Niagaran (Waldron): Waldron, Indiana. 



Diaphorostoma perforatum Whiteaves. 



Diaphorostoma perforatum Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, 



App. F, 1904, p. 52; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 261, pi. 



29, figs. 7, 7a. 

 Niagaran: Ekwan River, Canada. 



Diaphorostoma plebium (Hall). 



Platyostoma plebia Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed., 



1875, pi. 28, figs. 14, 15; rev. ed., 1879, p. 175, pi. 28, figs. 14, 15; 11th Ann. 



Rep. Dep. Geol. Nat. Hist., 1882, p. 319, pi. 29, figs. 14, 15.— Lesley, Geol. 



Surv. Pennsylvania, Rep. P 4, 1889, p. 695, figs. 

 Niagaran (Waldron): Waldron, Indiana. 



Diaphorostoma trigonostoma (Meek). 



Platyostoma? trigonostoma Meek, Proc. Acad. Nat. Sci. Philadelphia, 1, 1871, 



169.— Miller, N. A. Geol. Pal., 1889, p. 418, fig. 698.— Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 695, figs. 

 Platyostoma Niagarensis var. trigonostoma Meek, Geol. Surv. Ohio, Pal., 1, 1873, 



p. 185, pi. 16, figs. 3a-c, and text fig. 

 Xenophora trigonostoma Whitfield, Geol. Wisconsin, 4, 1882, p. 358 (gen. ref.). 

 Niagaran: Yellow Springs, Ohio. 



DiASTOPORA D'Orbigny (part). See Berenicea Lamoiiroux. 



DiastoporelIjA Vine. See Berenicea Lamouroux. 



DIASTOPORINA Ulrich. Genotype: D. flabellata Ulrich. 



Diastoporina Ulrich, Jour. Cincinnati Soc. Nat. Hist., 12, 1890, p. 177. — Miller, 

 N. A. Geol. Pal., Ist App., 1892, p. 684.— Ulrich, Geol. Minnesota, 3, 1893, 

 p. 121.— Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 17.— Simpson, 

 14th Ann. Rep. State Geol. New York for 1894, 1897, p. 595.— Nickles and 

 Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 20.— Grabau and Shimer, 

 N. A. Index Fossils, 1, 1907, p. 119. 



Diastoporina flabellata Ulrich. 



Diastoporina flabellata Ulrich, Jour. Cmcinnati Soc. Nat. Hist., 12, 1890, p. 178, 



fig. 5; Geol. Minnesota, 3, 1893, p. 122, pi. 2, figs. 2, 3.— Simpson, 14th Ann. 



Rep. State Geol. New York for 1894, 1897, figs. 199, 200 (p. 595).— Grabau and 



Shimer, N. A. Index Fossils, 1, 1907, p. 120, fig. 178f. 

 Trenton (Prosser): Cannon Falls and St. Paul, Minnesota. 

 Hohlype.—Cni. No. 43266. TT.S.N.M. 



