818 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Modiolopsis orthonota Continued. 



Modiolopsis orthonota Hall, Pal. New York, 2, 1852, p. 10, pi. 4a, figs. 1, a, b,c. 

 Lincklaeri, 14th Rep. New York S f tate Cab. Nat. Hist., 1861, pi. 5, figs. 8, 9. 

 Nicholson, Rep. Pal. Prov. Ontario, pt. 2, 1875, p. 48 (loc. occ.). Grabau, 

 Bull. New York State Mus., 45, 1901, p. 209, fig. 137; Bull. Buffalo Soc. Nat. 

 Sci., 7, 1901, p. 290, fig. 137. Grabau and Shimer, N. A. Index Fossils, 1, 

 1909, p. 512, fig. 689. 



Upper Medinan: Lockport, Medina, etc., New York; Ontario. 



Plastotype.C&t. No. 46197, U.S.N.M. 



MODIOLOPSIS ORTHONOTA Meek and Worthen. See Endodesma orthonotum. 



^fodiolopsis ovata Hall. 



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

 Upper Clinton: Mohawk, New York. 



MODIOLOPSIS OVIFORMIS Ulrich. See Modiolodon oviformis. 



Modiolopsis oweni Ulrich. 



Modiolopsis oweni Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 506, pi. 42, figs. 



15 and 16. 



Trenton (Prosser): Five miles south of Cannon Falls, Minnesota. 

 Holotype.C&t. No. 46254, U.S.N.M. 



Modiolopsis parallela (Conrad) Hall. Not recognized. 



Modiolopsis parallela Hall, Pal. New York, 1, 1847, p. 158, pi. 35, fig. 5. 

 Trenton: Locality unknown. 



Modiolopsis parva Ulrich. 



Modiolopsis parva Ulrich, Amer. Geol., 5, 1890, p. 281, fig. 9a-f. 

 Eden (Southgate) : Covington, Kentucky. 

 Cotypes.G&t. Nos. 46255, 46256, U.S.N.M. 



Modiolopsis parviuscula Billings. 



Modiolopsis parviuscula Billings, Canadian Nat. Geol., 1858, 4, p. 446; Hind's 



Narrative Canadian Red River Expl. Exped. of 1857 and Assinniboine and 



Saskatchewan Exped. of 1858, 1859, 2, p. 286. Whiteaves, Pal. Foss., Geol. 



Surv. Canada, 3, pt. 3, 1897, p. 182; Ottawa Nat., 22, 1908, p. 106, pi. 3, 



figs. 1, 2. 



Black River: Lake Winnipeg, Canada. 

 Chazyan: Montreal, near Cornwall (Aylmer), and Mingan Islands, Canada 



(Mingan). 



MODIOLOPSIS PATULUS Miller. See Modiolodon patulus. 



Modiolopsis perlata Hall. 



Modiolopsis perlatus Hall, 28th Rep. New York State Mus. Nat. Hist., mus. ed., 



1879, p. 172, pi. 27, figs. 3, 4; doc. ed., 1875, pi. 27, figs. 3, 4; llth Ann. Rep. 



Indiana Dep. Geol. Nat. Hist., 1882, p. 315, pi. 28, figs. 3, 4. Lesley, Geol. 



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

 Niagaran (Waldron): Waldron, Indiana. 



MODIOLOPSIS PHOLADIFORMIS Hall. See Whiteavesia pholadiformis. 

 MODIOLOPSIS PLANA Hall. See Eurymya plana. 



Modiolopsis pogonipensis Walcott. 



Modiolopsis Pogonipensis Walcott, Mono. U. S. Geol. Surv., 8, 1884, p. 78, pi. 1, 



figs. 6; pi. 11, figs. 13. 



Upper Pogonip: Fish Creek Mountains and Lone Mountain, Nevada. 

 Cotypes.-V&t. Nos. 17292, 17293, U.S.N.M. 



