NUC] 



LAMELLIBRANCHIA TA. 



495 



closed all round, without external liga- 

 mentary facets ; beak directed back- 

 ward ; cartilage internal, placed in a 

 pit under the beak ; teeth numerous, 

 very long. Type N. nucleus. 



anodontoides, Meek, 1871, Reg. Rep. Uni- 

 versity W. Va., Coal Meas. 



arata, see Nuculana arata. 



bellatula, Hall, 1843, syn. for N. belli- 

 striata. 



bellistriata, Conrad, 1841, (Nuculites 

 bellistriatus,) Ann. Rep. N. Y., p. 40, 

 and Geo. Rep. 4th Dist. N. Y., p. 197, 

 Ham. Gr. 



beyrichia, Schlotheim, as identified by 

 Geinitz. See Nucula parva. 



corbuliformis, Hall, 1870, Prelim. Notice 

 Lam. Shells, p. 2, and Pal. N. Y., vol. 5, 



pi. 46, 

 mung Grs. 



24-37, Ham. and Che- 



Fig. 865— Nucula 

 cobboldise. 



cylindricus, syn. for 

 Cardiomorpha mis- 

 souriensis. 

 diffidens, Hall, 1885, 

 Pal. N. Y., vol. 5, p. 

 322, Chemung Gr. 

 donaciformis, see Tellin- 



omya donaciformis. 

 globularis, Hall, 1885, 

 Pal. N. Y., vol. 5, p. 

 322, Chemung Gr. 

 fabula, see Clidophorus fabula. 

 hians, Hall, 1860, 13th Rep. N. Y. Mus. 



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

 houghtoni, see Tellinomya houghtoni. 

 hubbardi, Winchell, 1862, Proc. Acad. 

 Nat. Sci., p. 417, Marshall Gr. Syn. for 

 Nuculites sulcatinus. 

 illinoisensis, Worthen, 1884, Bull. No. 2, 

 111. St. Mus. Nat. Hist., p. 15, and Geo. 

 Sur. 111., vol. 8, p. 128, St. Louis Gr. 

 insularis, Walcott, 1885, Monogr. U. S. 

 Geo. Sur., vol. 8, p. 241, Carbonifer- 

 ous. 

 iowensis, White & WhitBeld, 1862, Proc. 

 Acad. Nat. Sci., vol. 8, p. 298. Syn. for 

 Tellinomya houghtoni. 

 kazanensis, as identified by Geinitz is Nu- 

 culana bellistriata. 

 lamellata, Hall, 1883, Pal. N. Y., vol. 5, 



pi. 51, figs. 18-20, Ham. Gr. 

 levata, see Tellinomya levata. 

 levatiformis, Walcott, 1885, Monogr. U. S. 

 Geo. Sur., vol. 8, p. 241, Carbonifer- 

 ous. 

 lineata, see Tellinomya lineata. 

 lineolata, Hall, 1843, Geo. Rep. 4th Dist. 



N. Y., p. 246, Portage Gr. 

 lirata, Conrad, 1842, (Nuculites liratus,) 

 Jour. Acad. Nat. Sci., vol. 8, p. 250, and 

 Pal. N. Y., vol. 5, pi. 45, figs. 17-27, 

 Ham. Gr. 

 machseriformis, see Tellinomya machseri- 



formis. 

 mactriformis, see Tellinomya mactriformis. 

 mercerensis, syn. for Cardiomorpha mis- 



souriensis. 

 microdonta, Winchell, 1863, Proc. Acad. 

 Nat. Sci., p. 16, Marshall Gr. 



minima, Foerste, 1885, Bull. Sci. Lab. 

 Denison Univ., p. 93. Not properly 

 defined. 



minuta, Owen, 1840, Rep. on Min. Lands, 

 Devonian. The name was preoccupied 

 by De France in 1825. 



nasuta, see Nuculana nasuta. 



neda, Hall & Whitfield, 1872, 24th Rep. 

 N. Y. Mus. Nat. Hist., p. 191, Up. 



• Held. Gr. 



niotica, Hall & Whitfield, 1872, 24th 

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

 Ham. Gr. 



obliqua, see Palseoconcha obliqua. 



oblonga, Hall, syn. for Nuculites oblon- 

 gatus. 



obsoleta, McChesney, 1860, Pal. Foss., p. 89, 

 Coal Meas. Not recognized. 



parva, McChesney, 1860, New Pal. Foss., 

 p. 54, and Geo. Sur. 111., vol. 5, p. 589, 

 Co3il JMprs 



perumbonata, White, 1879, Bull. U. S. 

 Geo. Sur., vol. 5, No. 2, p. 217, and 

 Cont. to Pal., No. B, p. 136, Carbonif- 

 erous. 



poststriata, see Lyrodesma poststriatum. 



randalli, Hall, 1870, Prelim. Notice Lam. 

 Shells, p. 3, and Pal. N. Y., vol. 5, pi. 

 45, figs. 5-16, Ham. and Chemung 

 Grs. 



rectangula, McChesnev, 1860, Desc. New 

 Pal. Foss., p. 74, Ham. Gr. 



rescuensis, Walcott, 1885, Monogr. U. S. 

 Geo. Sur., vol. 8, p. 172, Devonian. 



sectoralis, Winchell, 1862, Proc. Acad. 

 Nat. Sci., p. 418, Marshall Gr. 



shumardana, Hall, 1858, Trans. Alb. Inst., 

 vol. 4, p.. 16, and Bull. Am. Mus. Nat. 

 Hist., p. 57, Warsaw Gr. 



stella, see Tellinomya Stella. 



subelliptica, Hall, 1883, Pal. N. Y.. vol. 5, 

 pi. 45, fig. 28, Ham. Gr. 



umbonata, Hall, 

 1883, Pal. N. Y., 

 vol. 5, pi. 47, figs. 

 51 and 52, Che- 

 mung Gr. 



varicosa, Hall,1870, 

 Prelim. Notice 

 Lam. Shells, p. 2, and Pal. N. Y., vol. 5, 

 pi. 46, figs. 12-23, Ham. Gr. 



ventricosa, Hall, 1858, Geo. Sur. Iowa, p. 

 716, Coal Meas. 

 Nuculana, Link, 1807, Rost. Samml., vol. 3, 

 p. 155. [Ety. like a shell of the genus 

 Nucula.'] Equivalve, inequilateral, pro- 

 duced behind; beaks sometimes di- 

 rected posteriorly ; lunule often present ; 

 rounded in front ; post-umbonal slope 

 defined; surface concentrically lined; 

 hinge with a line of small teeth inter- 

 rupted by a triangular cartilage pit be- 

 neath the beak ; muscular impressions 

 two, small ; pallial line, simple, or 

 slightly sinuous. Type N. emargin- 

 ata. 



arata, Hall, 1852, (Nucula arata,) Stansb. 

 Exped. to Gt. Salt Lake, p. 413, Coal 

 Meas. 



Fig. 866.— Nucula veutri- 

 cosa. 



