626 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM. 



Holopea antiqua (Vanuxem). 



Littorina antiqua Vanuxem, Nat. Hist. New York, Geol., 3, 1842, p. 112, fig. 4. 



Hall, ibid., 4, 1843, p. 142, fig. 4; tab. ill. 26, fig. 4. Mather, ibid., 1, 1843, 



p. 349, fig. 4. Owen, Amer. Jour. Sci. Arts, 2d ser., 1, 1846, p. 47, fig. 4. 



Emmons, Man. Geol., 1860, p. 133, fig. 102. Lincklaen, 14th Rep. New York 



State Cab. Nat. Hist., 1861, p. 58, pi. 9, fig. 4. 

 Holopea antiqua Hall, Pal. New York, 3, 1859, p. 294, pi. 54, figs. 2a-b, 3a-b . 



Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 283, fig. Weller, Geol. 



Surv. New Jersey, Pal., 3, 1903, p. 264, pi. 24, figs. 15, 16. Grabau and 



Shimer, N. A. Index Fossils, 1, 1909, p. 677, fig. 944. 

 Manlius or Keyser: Schoharie, Litchfield, etc., New York; New Jersey. 



Holopea antiqua pervetusta Hall. 



Holopea antiqua var. pervetusta Hall, Pal. New York, 3, 1859, p. 295, pi. 54, figs. 



4, 5. Grabau, Michigan, Geol. Surv., Geol. Ser., 1, 1909, p. 178, pi. 28 ; figs. 



4-5. 

 Holopea pervetusta Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 677, fig. 



945. 



Helderbergian (Manlius or Keyser): New York. 

 Upper Monroan ( Amherstburg) : Detroit River region, Michigan. 



Holopea appressa Ulrich and Scofield. 



Holopea appressa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1065, 



pi. 79, figs. 7-10. 



Trenton: Goodhue County, Minnesota (Prosser); Burgin, Kentucky. 

 Cotypes Cat. No. 45838, U.S.N.M. 



Holopea arctic . Schuchert. 



Holopea arctica Schuchert, Proc. U. S. Nat. Mus.,22, 1900, p. 168, pi. 12, figs. 



14-16. 



Mohawkian: Head of Frobisher Bay, Baffin Land. 

 Cotypes. Cat. No. 28190, U.S.N.M. 



HOLOPEA ARENARIA Whitfield. See Plethospira arenaria. 

 HOLOPEA CASSINA Whitfield. See Plethospira cassina. 



Holopea chicagoensis Winchell and Marcy. 



Holopea chicagoensis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, 



p. 99, pi. 2, fig. 18. 

 Niagaran (Racine): Chicago, Illinois. 



Holopea concinnula Ulrich and Scofield. 



Holopea concinnula Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1066, 



pi. 79, fig. 6. 



Black River (Platteville) : Beloit, Wisconsin. 

 Plastotype.C&t. No. 46531, U.S.N.M. 



Holopea conoidea (Hall). 



Murchisonia? conoidea Hall, Pal. New York, 2, 1852, p. 13, pi. 4, fig. 7. 

 Holopea conoidea Whitfield and Hovey, Bull. Amer. Mus. Nat. Hist., 11, pt. 2, 



1899, p. 164 (gen ref.). 

 Upper Medinan: Lockport, New York. 



Holopea dilucula (Hall). 



Turbo dilucula Hall, Pal. New York, 1, 1847, p. 12, pi. 3, fig. 7. Cleland, Bull. 



Amer. Pal., 4, 1903, p. 14. 



Holopea dilucula Miller, N. A. Geol. Pal., 1889, p. 405, fig. 678. 

 Ozarkian (Little Falls): Little Falls, etc., New York. 



