CYP.] 



LAMELLIBRANCHIA TA. 



475 



complanata, Hall, 1870, (Microdon com- 

 planatus,) Prelim. Notice Lam. Shells, 

 p. 33, and Pal. N. Y., vol. 5, pi. 42, fig. 

 22, and pi. 74, figs. 14 to 19, Ham. Gr. 

 connata, Walcott, 1885, Monogr. U. S. Geo. 

 Sur., vol. 8, p. 250, Subcarboniferous. 

 gregaria, Hall, 1870, (Microdon gregarius,) 

 Prelim. Not. Lam. Shells, p. 32, and Pal. 

 N. Y., vol. 5, pi. 73, figs. 1-6, and pi. 74, 

 figs. 1-4, Ham. Gr. 

 macrostriata, Walcott, 1885, Monogr. 

 U. S., Geo. Sur., vol. 8, p. 180, De- 

 vonian, 

 major, Hall, 1885, Pal. N. Y., vol. 5, p. 



307, Up. Held. Gr. 

 nucleata, Hall, 1858, Trans. Alb. Inst., 

 vol. 4, p. 17, and Geo. Sur. Iowa, p. 663, 

 Warsaw Gr. 

 oblonga, Hall, 1858, Trans. Alb. Inst., 

 vol. 4, p. 18, and Bull. Am. Mus. Nat. 

 Hist., p. 65, Warsaw Gr. 

 plicata, see Goniophora plicata. 

 quadrata, White & Whitfield, 1862, Proc. 

 Bost. Soc. Nat. Hist., vol. 8, p. 300, 

 Kinderhook Gr. 

 reservata, Hall, 1870, (Microdon reserva- 

 tus,) Prelim. Notice Lam. Shells, p. 33, 

 and Pal. N. Y., vol. 5, pi. 74, figs. 11-13, 

 Waverly Gr. 

 subelliptica, Hall, 1858, Trans. Alb. Inst., 

 vol. 4, p. 17, and Geo. Sur. Iowa, p. 664, 

 Warsaw Gr. 

 tenuistriata, Hall, 1870, (Microdon ten- 

 uistriatus,) Prelim. Notice Lam. Shells, 

 p. 32, and Pal. N. Y., vol. 5, pi. 73, figs. 

 23 to 30, and pi. 74, figs. 20, 21, Ham. Gr. 

 Cypricardia, Lamarck, 1801, Syst. An. sans 

 Vert. [Ety. from the two genera Cy- 

 prina and Cardium.'] Oblong, oblique 

 posterior ridge ; umbones anterior, de- 

 pressed ; ligament external, in deep, 

 narrow grooves ; cardinal teeth two, 

 lateral one, in each valve, sometimes 

 obscure ; muscular impressions two, 

 oval, placed below the extreme anterior 

 and posterior ends of the cardinal line ; 

 pallial line simple. Typical C. obesa. 

 angutta, see Cypricardites angustus. 

 angustata, Vanuxem, syn. for Amnigenia 



catskillensis. 

 choteauensis, Swallow. 1863, Trans. St. 

 Louis Acad. Sci., vol. 2, p. 96, Wav- 

 erly or Choteau Gr. 

 contracta, see Sphenotus contractus. 



indianensis, see 

 Cypricardinia 

 indianensis. 

 insecta, Dawson, 

 1868, Acad. 

 Geol., p. 303, 

 Carbo n i f e r- 

 ous. 

 leidyi, Lea, see 

 Leaia, leidyi. 

 obsoleta, see 

 Cypricardite s 

 obsoletus. 



Fig. 811.— Cypricardia obesa. 



occidental^, Hall, 1852, Stans. Ex. to 

 Great Salt Lake, p. 412, Coal Meas. 



occidentalis, Swallow, 1863, Trans. St. 

 Louis Acad. Sci. This name was pre- 

 occupied. See C. swallovana. 



pikensis, Swallow, 1863, Trans. St. Louis 

 Acad. Sci., vol. 2. p. 95, Coal Meas. 



plicatula, Swallow, 1858, Trans. St. Louis 

 Acad. Sci., vol. 4, p. 205, Mid. Coal 

 Meas. 



primigenia, see Modiolopsis primigenia. 



randolphensis, see Sanguinolites randolph- 

 ensis. 



rhombea, see Cytherodon rhombeus. 



rigida, see Sphenotus rigidus. 



shumardana, Swallow, 1863, Trans. St. 

 Louis Acad. Sci., vol. 2, p. 95, St. Gen- 

 evieve limestone. 



mbplana, see Edmondia subplana. 



swallovana, S. A. Miller, 1883, 2d Ed. Am. 

 Pal. Foss., p. 310, Coal Measures of 

 Harrison County, Missouri. Proposed 

 instead of C. occidentalis, Swallow, 

 1863, in Trans. St. Louis Acad. Sci., 

 p. 96. 



undulata, Gurley, 1883, New. Carb. Foss., 

 p. 3, Coal Meas. Publication in- 

 valid. 



ventricosa, Hall, 1860, 13th Rep. N. Y. 

 Mus. Nat. Hist., p. 110, Kinderhook Gr. 



wheeleri, see Schizodus wheeleri. 

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

 3, p. 266. [Ety. Cypricardinia, from its 

 resemblance to Cypricardia.] General 

 form of Cypricardia ; inequilateral ; 

 oblique posterior ridge; umbones an- 

 terior, elevated ; concentrically grooved, 

 sometimes cancellated ; postero-cardinal 

 margin sometimes alate. Type C. lamel- 

 losa. 



arcuata, Hall, 1885, Pal. N. Y., vol. 5, 

 p. 486, Chemung Gr. 



arata, Hall, 

 1867, 20th 

 Rep. N. Y. 

 Mus. Nat. 

 Hist., p. 385, 

 Niagara Gr. 



carbonaria, 



Meek, 1871, Fig. 812.— Cypricardinia dis- 

 Proc Acad tiucta. Left valve, long 

 Nat.Sci.Phil.', s P ecimen - 

 p. 163, and 'Ohio Pal., vol. 2, p. 342, 

 Coal Meas. 



concentrica, Hall, 1859, Pal. N. Y., vol. 3, 

 p. 268, J.ow. Held. Gr. 



consimilis, Hall, 

 1885, Pal. N. Y., 

 vol. 5, p. 4 8 6, 

 Waverly Gr. 

 crassa, Hall, 1859, 

 Pal. N. Y., vol. 3, 

 p. 268, Low. Held. 

 Gr. 

 (?) cylindrica, Hall 

 & Whitfield, 1872, 

 24th Rep. N. Y. Mus. Nat. Hist., p. 190, 

 Corniferous Gr. 



distincta, Billings, 1874, Pal. Foss., vol. 2, 

 p. 56, Gaspe limestone, No. 8, De- 



Fig. 813. — Cypricardi- 

 nia distincta. Left 

 valve, short speci- 

 men. 



