BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 821 



Modiolopsis subquadrilateralis Hudson. 



Modiolopsis subquadrilateralis Hudson, Bull. New York State Mus., 80, 1905, 



p. 286, pi. 4, figs. 8 and 9. 

 Chazyan (Valcour): Valcour Island, New York. 



MODIOLOPSIS SUBRECTUS Miller. See Modiolodon subrectus. 



Modiolopsis subrhomboidea Simpson. 



Modiolopsis subrhomboidea Simpson in Lesley, Geol. Surv. Pennsylvania, Rep. 

 P4, 1889, p. 411, fig. Simpson, Trans. Amer. Phil. Soc., n. s., 16, 1890, p. 450, 

 fig. 17. Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 560, pi. 37, fig. 7a. 



Clinton: Seven miles northwest Lewistown, Mifnin County, Pennsylvania. 



Upper Medinan (Brassfield): Dayton, Ohio. 



MODIOLOPSIS SUBSPATULATA James. See Modiolopsis oblonga. 

 MODIOLOPSIS SUBSPATULATUS Hall. See Prolobella subspatulata. 



Modiolopsis subtruncata Ulrich. 



Modiolopsis subtruncata Ulrich, Amer. Geol., 5, 1890, p. 279, figs. 7a-c. 

 Eden (Economy): Cincinnati, Ohio. 

 HolotypeC&t. No. 46676, U.S.N.M. 



MODIOLOPSIS SULCATA Miller and Faber. See Whiteavesia corrugata. 

 MODIOLOPSIS? SUPERBUS Hall and Whitfield. See Whiteavesia superba. 



Modiolopsis? terminalis Hall. 



Modiolopsis terminalis Hall, Pal New York, 1, 1847, p. 318, pi. 33*, figs. 5a, 5b. 



Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 217. 

 Lyonsia terminalis Emmons, Amer. Geology, 1, pt. 2, 1855, p. 172. 

 Maysville: Cincinnati, Ohio. 

 Observation. Possibly the same as Rhytimya mickelboroughi (Whitfield). 



MODIOLOPSIS? TRENTONENSIS Hall. See Endodesma trentonensis. 

 MODIOLOPSIS TRUNCATUS Hall. See Modiolodon truncata. 

 MODIOLOPSIS? UNDULOSTRIATA Hall. See Cypricardinia undulostriata. 

 MODIOLOPSIS UNIONOIDES Miller. See Ischyrodonta unionoides. 



Modiolopsis valid a Ulrich. 



Modiolopsis valida Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 521, fig. 40a. 

 Richmond (Waynesville) : Waynesville, Ohio. 

 Cotypes.Cat. No. 46260, U.S.N.M. 



Modiolopsis versaillesensis Miller. 



Modiolopsis Versaillesensis Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 150, 

 figs. 18, 19; N. A. Geol. Pal. 1889, p. 491, figs. 855, 856. Ulrich, Geol. Min- 

 nesota, 3, pt. 2, 1894, p. 521, fig. 40a. Cumings, 32d Ann. Rep. Dep. Geol. 

 Nat. Res. Indiana, 1908, p. 1010, pi. 46, figs. 7, 7a. 



Richmond (Waynesville): Versailles, Indiana. 



Plesiotypes.C&t. No. 46261, U.S.N.M. 



MODIOMORPHA Hall. Genotype: Pterinea concentrica Conrad. 



Modiomorpha Hall, Prelim. Notice Lamel., pt. 2, 1869, p. 72; 23d Rep. New York 

 State Cab. Nat. Hist., 1873, pp. 14-16; Pal. New York, 5, pt. 1, Lam. 2, 1885, 

 p. 13. Nettelroth, Kentucky Foss. Shells, Geol. Surv. Kentucky, 1889, p. 

 215. Miller, N. A. Geol. Pal., 1889, p. 491. Koken, Die Leitfossilien, 

 Leipzig, 1896, p. 521. Grabau, Bull. Buffalo Soc. Nat. Sci., 4, 1899, p. 249. 

 Ball, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 462. 



