AVI.] 



LAMELL I BRANCH I A TA. 



467 



orbiculaius, see Lyriopecten orbiculatus. 

 orestes, Worthen, 1884, Bull. No. 2, 111. 



St. Mus. Nat. Hist, p. 18, and Geo. Sur. 



III., vol. 8, p. 112, Keokuk Gr. 

 orestes, Hall, syn. for A. fasciculatus. 

 ornatus, Hall, 1883, Pal. N. Y., vol. 5, pt. 



1, p. 37, Ham. Gr. 

 oweni, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., p. 452, and Geo. 



Sur. 111., vol. 2, p. 256, Keokuk Gr. 

 parilis, Conrad, 1842, (Avicula parilis,) 



Jour. Acad. Nat. Sci. Phil., vol. 8, p. 239, 



and Ohio Pal., vol. 1, p. 197, Cornif. Gr. 

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



Geo. Expl. 40th parallel, vol. 4, p. 274, 



Coal Meas. 



plenus, Hall, 1883, Pal. N. Y., vol. 5, pt. 

 1, p. 21, Chemung Gr. 



Fig. 783.— Aviculopecten prlnceps. Cardinal 

 part showing ligamental area. 



princeps, Conrad, 1838, (Monotis prin- 

 ceps,) Ann. Rep. N. Y., p. 117, and Pah 

 N. Y., vol. 5, pt. 1, p. 1, Ham. Gr. 



tia. 784. — Aviculopecten varsoviensis--. 



patulus, Hall, 1883, Pal. N. Y., vol. 5, pt. 



1, p. 24, Up. Chemung Gr. 

 pecteniformis, Conrad, 1842, (Avicula 



pecteniformis,) Jour. Acad. Nat. Sci., 



vol. 8, p. 240, and Pal. N. Y., vol. 5, pt. 



1, p. 4, Up. Held. Gr. and Marcellus 



Shale, 

 pellucid us, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., p. 455, and Geo. 



Sur. 111., vol. 2, p. 327, Low. Coal Meas. 

 peroccidens, Walcott, 1885, Monogr. U. S. 



Geo. Sur., vol. 8, p. 227, Subcarbonif- 



erous. 

 phorcus, Hall, 1883, Pal. N. Y., vol. 5, pt. 



1, p. 10, Ham. Gr. 

 pintoensis, Walcott, 1885, Monogr. U. S. 



Geo. Sur., vol. 8, p. 228, Subcarbonif- 



erous. 



providencensis, Cox, 1857, (Pecten provi- 

 dencensis,) Geo. Sur. Ky., vol. 3, p, 566, 

 Coal Meas. 



rectilaterarius, Cox, 1857, (Avicula recti- 

 lateraria,) Geo. Sur. Ky., vol. 3, p.'571, 

 Coal Meas. 



repletus, Hall, syn. for A. fasciculatus. 



reticulatus, Dawson, 1868, Acad. Geol., p. 

 306, Carboniferous. 



ringens, Swallow, 1858, (Pecten ringens,) 

 Trans. St. Louis Acad. Sci., p. 184, Per- 

 mian Gr. 



rugistriatus, Hall, 1843, (Lima rugsestri- 

 ata,) Geo. Rep. 4th Dist. N. Y., p. 264, 

 and Pal. N. Y., vol. 5, pt. 1, p. 15, Che- 

 mung Gr. 



sanduskiensis, Meek, 1871, Proc. Acad. 

 Nat. Sci. Phil., p. 161, Up. Held. Gr. 



