CRT.] 



BRA CH1OPODA. 



359 



oblata var. emarginata, Hall, 1859, Pal. 

 N. Y., vol. 3, p. 164, Low. Held. Gr. 



occasus, Hall, 1860, 13th Rep. N. Y. St. 

 Mus. Nat. Hist., p. Ill, Waverly Gr. 



occidental, Hall, 1847, Pal. N. Y., vol. 1, 

 p. 127, Trenton to Hud. Riv. Gr. 



orbicularis, Sowerby, 1839, Murch. Sil. 

 Sys., p. 611, Up. Sil. 



orthambonites, Eichwald, 1840, Sil. Syst. 

 in Esthl., p. 150, Quebec Gr. 



pecosi, Marcou, 1858, Geo. N. America, 

 p. 48, Coal Meas. This species was 

 subsequently described by Swallow 

 under the name of Orthis carbonaria. 



pecten, as identified by d'Archiac & Ver- 

 ne uil. Not American. 



pectinella, Emmons, 1842, Geo. Sur. 2d 

 Dist. N. Y., p. 394, and Pal. N. Y., vol. 

 1, p. 123, Trenton Gr. 



pectinella var. semiovalw, Hall, 1847, Pal. 

 N. Y., vol. 1, p. 124, Trenton Gr. Not dis- 

 tinguishable from the type species. 



peduncularis, Hall, 1859, Pal. N. Y., vol. 



3, p. 174, Low. Held. Gr. 



peloris, Hall, 1863, 16th Rep. N. Y. St. 



Mus. Nat. Hist., p. 32, Schoharie grit, 

 penelope, Hall, 1860, 13th Rep. N. Y. St. 



Mus. Nat. Hist., p. 79, and Pal. N. Y., 



vol. 4, p. 50, Ham. Gr. 

 pepina, Hall, 1863, 16th Rep. N. Y. St. 



Mus. Nat. Hist., p. 135, Potsdam Gr. 

 perelegans, Hall, 1857, 10th Rep. N. Y. St. 



Mus. Nat. Hist., p. 44, and Pal. N. Y., 



vol 3, p. 171, Low. Held. Gr. 

 perversa, see Streptorhynchus perversum. 

 perveta, Conrad, 1843, Proc. Acad. Nat. 



Sci., vol. 1, p. 333, and Pal. N. Y., vol. 



1, p. 120, Black Riv. and Trenton Grs. 

 pigra, Billings, 1859, Can. Nat. Geo., vol. 



4, p. 442, Chazy Gr. 



pisum, as identified by Hall, see Nucleo- 



spira pisiformis. 

 planoconvexa, Hall, 1859, Pal. N. Y., vol. 



3, p. 168, Low. Held. Gr. 



platys, Billings, 1859, Can. Nat. Geo., vol. 



4, p. 438, Chazy Gr. 



plicata, Vanuxem, see Spirifera vanuxemi. 

 plicatella, Hall, 1847, Pal. N. Y., vol. 1, p. 



122, Trenton and Hud. Riv. Grs. 

 pogonipensis, Hall & Whitfield, 1877, U. S. 



Geo. Expl. 40th parallel, vol. 4, p. 



232, Chazy Gr. 



porcata, McCoy, 1844, Sil. FOBS, of Ire- 

 land, p. 32, Trenton, 'Hud. Riv., and 



Mid. Sil. 

 porcia, Billings, 1859, Can. Nat. Geo., vol. 



4, p. 439, Chazy Gr. 



prseumbona, see Ambocoelia prseumbona. 

 pralteni, McChesney, 1860, New Pal. Foss., 



Coal Meas. Not recognized, 

 prava, Hall, 1858, Geo. of Iowa, p. 490, 



Ham. Gr. 

 propinqua, Hall, 1857, 10th Rep. N. Y. 



St. Mus. Nat, Hist., p. 110, and Pal. 



N. Y., vol. 4, p. 43, Up. Held. Gr. 

 proximus, Vanuxem, 1842, (Hipparionyx 



proximus,) Geo. Rep. 3d Dist. N. Y.,p. 



124, and Pal. N. Y., vol. 3, p. 407, Oris- 



kany sandstone. 



punctostriata, Hall, 1852, Pal. N. Y., vol. 



2, p. 254, Niagara Gr. 

 pyramidalis, see Skenidium pyramidale. 

 quacoensis, Matthew, 1885, Trans. Roy. 



Soc. Can., p. 43, St. John Gr. 

 quadricostata, see Leiorhynchus quadri- 



costatum. 

 remnicha, Winchell, 1886, 14th Ann. Rep. 



Geo. Minn., p. 317, Potsdam Gr. 

 resupinata, Martin, 1809, Petref. Derb., 



tab. 49, figs. 13 and 14, Subcarb. 

 resupinoides, Cox, 1857, Geo. Sur. Ky., 



vol. 3, p. 570, Coal Meas. 

 retrorea, Salter, 1858, Mem. Geo. Sur. of 



Gt. Brit., vol. 2, p. 373, Trenton and 



Hud. Riv. Grs. 

 rhynchonelliformis, Shaler, 1865, Bull. 



No. 4, M. C. Z., p. 66, Anticosti Gr. 

 richmondi, McChesney, 1860, New. Pal. 



FOBS., p. 32, syn. for Streptorhynchus 



crassum. 

 robusta, Hall, 1858, Geo. Rep. Iowa, p. 713, 



syn. for Streptorhynchus crassum. 

 rugiplicata, Hall & Whitfield, 1872, 24th 



Rep. N. Y. St. Mus. Nat. Hist., p. 182, 



Niagara Gr. 

 ruida, Billings, 1866, Catal. Sil. Foss. 



Antic., p. 42, Anticosti Gr. 

 salemensis, Walcott, 1887, Am. Jour. Sci. 



and Arts, 3d ser., vol. 34, p. 190, Up. 



Taconic. 

 sandbergi, Winchell, 1886, 14th Ann. Rep. 



Geo. Minn., p. 318, Potsdam Gr. 

 schohariensis, Castelnau, 1843, Syst. Sil., p. 



36. Not recognized, 

 scovillii, S. A. Miller, 1882, Jour. Cin. Soc. 



Nat. Hist., vol. 5, p. 40, Hud. Riv. Gr. 

 sectostriata, Ulrich, Jour. Cin. Soc. Nat. 



Hist., vol. 2, p. 15, syn. for O. ella. 

 semele, Hall, 1863, 16th Rep. N. Y. St. 



Mus. Nat. Hist., p. 34, Onondaga and 



Up. Held. Grs. 

 sinuata, Hall, 1847, Pal. N. Y., vol. 1, p. 



128, Hud. Riv. Gr. 

 sola, Billings, 1866, Catal. Sil. Foss. Antic., 



p. 12, Hud. Riv. Gr. 

 solitaria, Hall, 1860, 13th Rep. N. Y. St. 



Mus. Nat. Hist,, p. 80, and Pal. N. Y., 



vol. 4, p. 45, Ham. Gr. 

 stonensis, Safford, 1869, Geo. of Tenn., p. 



286, Trenton and Nashville Grs. 

 striatella, see Chonetes striatellus. 

 striatula, Emmons, 1842, Geo. Rep. N. Y. 



This name was preoccupied by Schlot- 



heim. 

 strophomenoides, Hall, 1857, 10th Rep. 



N. Y. St. Mus. Nat. Hist., p. 46, and 



Pal. N. Y., vol. 3, p. 177, Low. 



Held. Gr. 

 subcarinata, Hall, 1857, 10th Rep. N. Y. 



St. Mus. Nat. Hist., p. 42, and Pal. N. Y., 



vol. 3, p. 169, Low. Held. Gr. 

 subsequata, Conrad, 1843, Proc. Acad. 



Nat. Sci., vol. 1, p. 333, and Pal. N. Y., 



vol. 1, p. 118, Chazy to Trenton Gr. 

 subelliptica, White & Whitfield, 1862, 



Proc. Bost. Soc. Nat. Hist., vol. 8, p. 



292, Waverly or Kinderhopk Gr. 

 subjugata, syn. for Orthis occiden tails. 



