SER. STA.] 



ANNELIDA. 



521 



lilhos, stone.] Merely worm furrows, 

 without organic characters, 

 canadensis, Billings, 1862, Pal. Foss. vol. 

 1, p. 96, Potsdam Gr. 



FIG. 943. Scolithus canadensis. 



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



2, Potsdam Gr. 

 verticalis, Hall, 1852, Pal. N. Y., vol. 2, p. 



6, Medina sandstone, 

 tuberosus, Miller & Dyer, 1878, Cont. to 



Pal. No. 2, p. 5, Hud. Riv. Gr. 

 woodi, Whitfield, 1880, Ann. Rep. Geo. 



Sur. Wis., p. 45, Potsdam Gr. 

 Serpula, Linnteus, 1758, Syst. Nat., 10th ed. 

 p.'786. [Ety- wrpo, to creep.] Tube cal- 

 careous, procumbent, variously curved 

 or spirally coiled, growing singly or in 

 groups, attached to marine bodies, 

 capable of receiving the entire animal ; 

 aperture at the larger extremity sim- 

 ple and rounded. Type S. vermicularis. 

 insita, White, 1878, Proc. Acad. Nat. Sci., 

 p. 37, and Coot, to Pal., No. 8, p. 171, 

 Coal Meas. 



omphalodes, see Spirorbis omphalodes. 

 valvata, see Spirorbis valvatus. 

 SERPULITES, Murcbison, 1839, Murch. Sil. 

 Syst., p. 608. [Ety. Serpula, a genus of 

 annelids.] Tube smooth, arched, slightly 

 calcareous, glossy ; having two small 

 longitudinal tubes at opposite points of 

 the circumference, stronger than the 

 rest of the shell, and prolonged at the 

 posterior end. Type S. longissimus. 



annulatus, Dawson. 1868, 

 ^v A cad. Geol., p. 312, Car- 



jt& boniferous. 



flT dissolutus, Billings, 1862, Pal. 



IP Foss., vol. 1, p. 56, Tren- 



ton Gr. 



hortonensis, Dawson, .1868, 

 Acad. Geol., p. 312, Car- 

 boniferous, 

 inelegans, Dawson, 1868, Acad. Geol., p. 



312, Carboniferous, 

 murchisoni, Hall, 1861, Geo. Rep. Wis., 



p. 48, Potsdam Gr. 



murrayi, Dawson, 1883, Hep. on Redpath 

 Mus., No. 2, p. 13, Carboniferous. 



FIG. 944. Ser- 

 pulites an- 

 uulatus. 



splendens, Billings, 1859, Can. Nat. and 



Geo., vol. 4, p. 470, Chazy Gr. 

 Sphagodus obliquus, see Lumbriconereites 



obliquus. 



SPIRORBIS, Lamarck, 1801, Syst. An. sans 

 Vert, p. 326. [Sig. spiral-whorl.] Tube 

 calcareous, solitary, coiled ; flat, dex- 

 tral ior sinistral, attached by one side 

 to some foreign object. Type Serpula 

 Spirorbis of Linnaeus. 



ammon, Winchell, 1866, Rep. Low. Pen- 

 insula Mich., p. 97, Ham. Gr. 



angulatus, Hall, 1862, 15th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 84, Ham. Gr. 



angulatus, Dawson, 1868. The name was 

 preoccupied. 



annulatus, Hall, 1858, Trans. Alb. Inst., 

 vol. 4, p. 34, and Bull. Am. Mus. Nat. 

 Hist., p. 92, Warsaw Gr. 



annulatus var. nodulosus, see S, nodu- 

 losus. 



anthracosia, Whitfield, 1881, Am. Jour. 

 Sci. and Arts, 3d ser. vol. 21, p. 128, 

 Coal Meas. 



arietinus, Dawson, 1869, Rep. of Progr. 

 Geo. Sur. Can., p. 14, Coal Meas. 



arkonensis, Nicholson, 1874. Geo. Mag., 

 vol. 1, p. 199, Ham. Gr. 



carbonarius, Dawson, 1845, 

 Quar. Jour. Geo. Soc., 

 vol. 1, p. 326, Coal Meas. 



cincinnatiensis, Miller & 

 Dyer, 1878, Jour. Gin. 

 Soc. Nat. Hist., vol. 1, 

 p. 38, Hud. Riv. Gr. 



flexuosus, Hall, 1 8 6 3 , Fl 



Trans. Alb. Inst., vol. 4, bis ca'rbonar'i us. 

 p. 224, Niagara Gr. 



inornatus, Hall. 1863, Trans. Alb. Inst,, 

 vol. 4, p. 224, Niagara Gr. 



kinderhookensis, Gurley, 1883, New Garb. 

 Foss., p. 9. Publication not sufficient. 



laxus, Hall, 1859, Pal. N. Y., vol. 3, p. 

 349, Low. Held. Gr. 



nodulosus, Hall, 1858, Trans. Alb. Inst.. 

 vol. 4, p. 34, and Bull. Am. Mus. Nat. 

 Hist, p. 93, Warsaw Gr. 



obesus, Winchell, 1866, Rep. Low. Pen- 

 insula Mich., p. 97, Ham. Gr. 



omphalodes, Goldfuss, 1826, Germ. Pe- 

 tref., Up. Held, and Ham. Grs. 



orbiculostoma, Swallow, 1858, Trans. 

 St. Louis Acad. Sci., p. 181, Per- 

 mian Gr. 



spinuliferus, Nicholson, 1875, Pal. Prov. 

 Ont, p. 83, Ham. Gr. 



valvaius, Goldfuss, 1826, (Serpula valvata). 



Not American. 



STAUROCEPHAWTES, Hinde, 1879, Quar. Jour. 

 Geo. Soc. Lond., vol. 35, p. 383. [Ety. 

 Staurocephalus, an existing genus ; iithos, 

 stone.] Jaws of more or less elongated 

 compressed denticulate plates resem- 

 bling those of the genus Staurocephalus. 

 Type S. niagarensis. 



nigarensis, Hinde, 1879, Qaar. Jour. 

 Geo. Soc. Lond., vol. 35, p. 383, Nia- 

 gara Gr. 



