496 



LAMELLIBRANCHIA TA. 



[NUC. NYA. 



FIG. 867. Nuculana belli 

 striata. Left valve. 



bellistriata, Stevens, 1858, (Leda belli- 

 striata,) Am. Jonr. Sci., vol. 25, p. 261, 

 and Geo. Sur. Iowa, p. 717, Coal Meas. 

 bellistriata var. at- 

 tenuata, Meek, 

 1872, Pal. E. 

 Neb., p. 206, 

 Coal Meas. 

 brevirostris, Hall, 

 1870, (Leda (?) 

 brevirost ris,) 

 Prelim. Notice Lam. Shells, p. 6, and 

 Pal. N. Y., vol. 5, pis. 38, 39, Ham. Gr. 



curta, Meek, 1861, 

 (Leda curta,) 

 Proc. A cad. Nat. 

 Sci. Phil., p. 

 144, and Geo. 

 Sur. 111., r ,vol. 2, FIG 868 ._ Nucu i ana bem . 

 p. 283, St. Louis striata. Cardinal view. 

 Gr. 



densmamillata, Stevens, 1858, (Leda 

 densmamillata,) Am. Jour. Sci., vol. 25, 

 p. 261, Marshall Gr. 



diversa, Hall, 1883, Pal. N. Y., vol. 5, pi. 

 47, figs. 31-37, Ham. Gr. 



nasuta, Hall, 1858, (Nucula nasuta,) 

 Trans. Alb. Inst., vol. 4, p. 17, and 

 Bull. Am. Mus. Nat. Hist., p. 57, War- 

 saw Gr. 



nuculiformis, see Palseoneilo nuculiformis. 



obeea, White, 1879, Bull. U. S. Geo. Sur., 

 vol. 5, No. 2, p. 216, and Cont. to Pal., 

 No. 6, p. 136, Carboniferous. 



ohioensis, Hall, syn. for N. pandoriformis. 



obscura, Hal], 1885, (Leda obscura,) Pal. 

 N. Y., vol. 5, p. 331, Ham. Gr. 



pandoriformis, Stevens, 1858, (Leda pan- 

 doriformis,) Am. Jour. Sci., vol. 25, p. 

 261, Waverly Gr. 



perstriata, Hall, 1883, Pal. N. Y., vol. 5, pi. 

 47, figs. 42-44, syn. for N. rostellata. 



rostellata, Conrad, 1841, (Nuculites rostel- 

 latus,) Ann. Rep. Geo. N. Y., p. 50, 

 Ham. Gr. 



eaccata, Winchell, 1863, (Leda saccata,) 

 Proc. Acad. Nat. Sci., p. 16, Mar- 

 shall Gr. 



vaseyana, Mc'Chesney, 1860, (Nuculites 

 vaseyanus,) Desc. New. Pal., Foss., p. 73, 

 Ham. Gr. 



NUCULITES, Conrad, 1841, Ann. Geo. Rep. 

 N. Y., p. 49. [Ety. Nucula, a genus of 

 shells.] Equivalve, inequilateral, 

 transverse ; anterior end rounded ; 

 posterior truncate or pointed ; beak, 

 anterior; cardinal line arcuate; post- 

 umbonal slope rounded or angular; 

 surface concentrically lined, hinge 

 with a row of transverse narrow teeth 

 from the anterior to the posterior mus- 

 cular scar ; ligament external ; anterior 

 scar deep and separated from the cavity 

 of the shell by a clavicle ; posterior scar 

 elongate; pallial line simple. Type N. 

 oblongatus. 



altus, Conrad, 1842, Jour. Acad. Nat. Sci., 

 vol. 8, p. 251, Devonian. 



appressua, see Cytherodon appressus. 



bellistriatus, see Nucula bellistriata. 

 carinatus, Hall, 1860, Can. Nat. and Geol., 



vol. 5, p. 151, Up. Sil. 

 chemungensis, see Cytherodon chemung- 



ensis. 

 concentricus, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, p. 248, Coal Meas. 

 comtrictus, see Palaeoneilo constricta. 

 cuneiformis, Conrad, 1841, Ann. Rep. 



N. Y., p. 50, and Pal. N. Y., vol. 5, pi. 



47, figs. 13-16, Ham. Gr. 

 emarginatus, see Palaeoneilo emarginata. 

 faba, see Modiolopsis faba. 

 filosus, see Palseoneilo filosa. 

 inflatus, see Cypricardites inflatus. 

 lamellosus, Conrad, 1841, Ann. Geo. Rep. 



N. Y., p. 50, Up. Sil. 

 liratus, see Nu- 

 cula lirata. 

 mact r oid es, 



Conrad,1842, 



Jour. Acad. 



Nat. Sci., vol. 



8, p. 249, 



Marshall Gr. 

 maximus, see FIG. 869. Nuculites oblon 



Palseo n e i 1 gatus. Interior of large left 



maxima. valve ' 



multilineatus, Conrad, 1842, Jour. Acad. 



Nat. Sci., vol. 8, p. 251, Ham. Gr. 



nyssa. Hall, 1870, 

 Prelim. Notice 

 Lam. Shells, p. 

 5, and Pal. N. 

 Y., vol. 5, pi. 

 47, figs. 25-30, 

 Ham. Gr. 

 ob/ongus, see Cli- 

 dophorus ob- 

 longus. 



oblongatus, Con- 

 rad, 1841, Ann. Geo. Rep. N". Y., p. 50, 



and Pal. N. Y., vol. 5, pi. 47, figs. 1-12, 



Ham. Gr. 



planulatus, see Clidophorus planulatus. 

 poststriatus, see Lyrodesma poststriatum. 

 radiatus, see Pholadella radiata. 

 rostellatus, see Nuculana rostellata. 

 scitula, syn. for Clidophorus planulatus. 

 subemarginatus, see Tellinopsis, subemargi- 



nata. 

 sulcatinus, Conrad, 1842, Jour. Acad. Nat. 



Sci., vol. 8, p. 250, Marshall Gr. 

 triangularis, Hall & Whit field, 1877, U. S. 



Geo. Expl., 40th parallel, vol.4, p. 248, 



Devonian, 

 triqueter, Conrad, 1841, Ann. Rep. N. Y., 



p. 50, and Pal. N. Y., vol. 5, pi. 47, figs. 



17-24, Ham. Gr. 



vaseyanus, see Nuculana vaseyana. 

 yoldiiformis, Ulrich, 1879, Jour. Cin. Soc. 



Nat. Hist., vol. 2, p. 24, Hud. Riv. Gr. 



It is not a Nuculites. 

 NYASSA, Hall, 1870, Prelim. Notice Lam. 



Shells, but defined by Whitfield, 1882, 



Ann. N. Y., Acad. Sci., vol. 2, p. 244. 



[Ety. mythological name.] Shell bi- 

 valve, very oblique and transversely 



ovate in form ; posterior hinge plate 



FIG. 870. Nuculites oblon- 

 gatus. Cast of interior of 

 right valve, showing mus- 

 cular scars and pallial 

 Hue. 



