820 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Modiolopsis simulatrix Ulrich. 



Modiolopsis eimulatrix Ulrich, Amer. GeoL, 5, 1890, p. 277, fig. 5a-c. 

 Eden (Southgate) : Covington, Kentucky. 

 Holotype.Cat. No. 46258, U.S.N.M. 



Modiolopsis sinuata (Emmons). 



Cypricardites sinuata Emmons, Geol. New York, 2, 1842, p. 399, fig. 3. 

 Modiolopsis sinuata Miller, N. A. Geol. Pal., 1889, p. 491 (gen. ref.). Clarke and 



Ruedemann, Bull. New York State Mus., 65, 1903, p. 446. 

 Cypricardites anodontoides Emmons, Man. Geol., 1860, p. 101, fig. 91. 

 Modiolopsis anodontoides Hall, Pal. New York, 1, 1847, p. 298, pi. 82, figs. 3a-c. 



Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 4, fig.3. 



(?)Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 217. Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 407, fig. 



Lyonsia anodontoides Emmons, Amer. Geology, 1, pt. 2, 1855, p. 171, pi. 17, fig. 14. 

 Cincinnatian (Pulaski): Rodman and Lorraine, New York. 



Modiolopsis sowteri Raymond. 



Modiolopsis sowteri Raymond, Amer. Jour. Sci., 20, 1905, p. 374. 

 Chazyan (Aylmer): Aylmer, Quebec. 



MODIOLOPSIS STRIATA Billings. See Pterinea striata. 



Modiolopsis subalata Hall. 



Modiolopsis subalatus Hall, Pal. New York, 2, 1852, p. 84, pi. 27, figs. 5, 6a, b; p. 



285, pi. 59, fig. 7. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, p. 



109. Hall, 20th Rep. New York State Cab. Hist., p. 339, 1868, p. 389; rev. 



ed., 1870, p. 386; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1875, 



pi. 27, figs. 5, 6; Mus. ed., 1879, p. 173, pi. 27, figs. 5, 6; llth Ann. Rep. 



Indiana Dep. Geol. Nat. Hist., 1882, p. 315, pi. 28, figs. 5, 6. Lesley, Geol. 



Surv. Pennsylvania, Rep. P 4, 1889, p. 410, figs. 

 Cypricardia obsoleta Hall, Geol. New York, 4, 1843, p. 76, fig. 3; tab. ill. 8, fig. 3. 



Owen, Amer. Jour. Sci. Arts, 48, 1845, p. 306, fig. 3. 

 Cypricardites obsoletus Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 



178, fig. 

 Niagaran: Rochester, Sodus, Walcott, etc., New York (Lower Clinton); Waldron, 



Indiana (Waldron). 



MODIOLOPSIS SUBARCUATA D'Orbigny. See Modiolopsis arcuafa. 



Modiolopsis subcarinata Hall. 



Modiolopsis subcarinatus Hall, Pal. New York, 2, 1852, p. 101, pi. 30, figs. 3a, b, c, 



d,4a. 

 Upper Clinton: Near Mohawk, New York. 



MODIOLOPSIS SUBELLIPTICA Ulrich. See Allodesma subellipticum. 



Modiolopsis subparallela Ulrich. 



Modiolopsis subparallela Ulrich, Amer. Geol., 5, 1890, p. 273, figs. 2a-c. 

 Maysville (Fainnount) : Covington, Kentucky. 

 Holotype.Csit. No. 46259, U.S.N.M. 



Modiolopsis subnasuta Hall. 



Modiolopsis subnasutus Hall, Canadian Nat. Geol., 5, 1860, p. 148. Dawson, 



Acadian Geol., 2d. ed., 1868, p. 599. 

 Silurian: Arisaig, Nova Scotia. 



MODIOLOPSIS SUBNASUTA Meek and Worthen. See Orthodesma subnasutum. 



