MAC. — PAI,.] 



ANNELIDA. 



519 



armatus, Hinde, 1879, Quar. Jour. Geo. 

 8oc. Lond., vol. 35, p. 383, Clin- 

 ton Gr. 



basalis, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 383, Clin- 

 ton Gr. 



dactylodus, Hinde, 1879, Quar. Jour. 

 Geo. Soc. Lond., vol. 35, p. 380, Hud. 

 Riv. Gr. 



obliquus, Eichwald, 1854, (Sphagodus obli- 

 quus), Ball. d. 1. Soc. Imp. d. Nat. d. 

 Moscou, p, 110, Hud. Riv. and Clin- 

 ton Gr. 



perdentatus, Hinde, 1879, (Eunicites per- 

 dentatus), Quar. Jour. Geo. Soc, vol. 

 35, p. 375, Clinton Gr. 



triangularis, Hinde, 1879, Quar. Jour. 

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

 ton Gr. 

 Machairodus, Pander, 1856. This name was 

 preoccupied. See Dietacodus. 



incurvus, see Distacodus incurvus. 

 Monocraterion, Torell, 1860, Acta univer- 

 sitatis lundensis, p. 13. [Ety. monos, 

 one ; kraterion, small basin.] Borings in 

 the rock resembling Scolithus, except 

 in having a funnel-shaped enlargement 

 at the upper end. 



lesleyi, Prime, 1878, Geo. Sur. Pa. DD. p. 

 79, Calciferous (?) Gr. 

 Myrianites, Murchison, 1839, Sil. Syst., p. 

 700. [Ety. Myrias, a myriad; lithos, stone.] 

 Trails lying together in great numbers, 

 more or less corrugated upon the edges, 

 and resembling delicate wave lines upon 

 the surface of the rock. Type M. ma- 

 cleaii. 



murchisoni, Emmons, 1844, Taconic syst., 

 p. 44, Up. Taconic. 



sillimani, Emmons, 1844, Taconic Syst., 

 p. 44, Up. Taconic. 

 Nemapodla, Emmons, 1844, Taconic Syst, p. 

 68. [Ety. nema, a thread; pous, a foot.] 

 Trail consisting of a series of depres- 

 sions marked by numerous short paral- 

 lel fine lines; the trail is flexuous, and 

 the short, fine lines have the direction 

 of the trail. Type N. tenuissima. 



tenuissima, Emmons, 1844, Taconic syst, 

 p. 68, Up. Taconic. 

 Nerkidavus, Grinnell, 1877, Am. Jour. Sci. 

 and Arts, 3d ser., vol. 14, p. 229. [Ety. 

 Nereis, genus; avus, grandfather.] Mi- 

 nute denticulated teeth or jaws. Type 

 N. varians. 



solitarius, Hinde, 

 1879, Quar. Jour. 

 Geo. Soc. Lond., 

 vol. 35, p. 385, 

 Ham. Gr. 

 varians, Grinnell, 

 1877, Am. Jour. 

 Sci. and Arts, 3d ser., vol. 14, p. 229, 

 Hud. Riv. Gr. 

 Nereites, Murchison, 1839, Sil. Syst., p. 700. 

 [Ety. from a resemblance to the track 

 of the Nereis.'] Long, convoluted trails ; 

 each side equally crenulated ; crenula- 

 tions oval or pointed on the margin, 



Nereidavus 

 varians. Magnified 8 

 diam. 



Fig. 940.— Nereites deweyi. 



and often traceable to the center of 

 the trail. Type N. cambrensis. 



deweyi, Em- 

 mons, 1844, 

 Taconic. 

 Syst., p. 69, 

 Up. Ta- 

 conic. 



gracilis, Em- 

 mons, 1844, 

 Taconic 

 Syst, p. 69, 

 Up. Ta- 

 conic. 



jacksoni, 

 Emm ons, 

 1844, Taco- 

 nic Syst., 

 p. 69, Up. 

 Taconic. 



Ian ceolatus, 

 Emmons, 1844, Taconic Syst., p. 69, Up. 

 Taconic. This may belong to Nereo- 

 grapsus, as suggested by Emmons. 



loomisi, Emmons, 1844, Taconic Svst., p. 

 69, Up. Taconic. 



pugnus, Emmons, 1844, Taconic Syst., p. 

 69, Up. Taconic. 



robustus, Emmons, 1856, (Nereograpsus ro- 

 bustus,) Am. Geol., p. Ill, Up. Taconic. 

 Oenonites, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 376. [Ety. Oenone, 

 a genus; lithos, stone.] Jaws with a 

 more or less curved anterior hook ; fol- 

 lowed by a series of smaller teeth, simi- 

 lar in character to those of the existing 

 genus Oenone. Type O. curvidens. 



amplus, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 382, Clinton Gr. 



carinatus, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35. p. 377, Hud. Riv. Gr. 



cuneatus, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 377, Hud. Riv. Gr. 



curvidens, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 376, Hud. Riv. Gr. 



fragilis, Hinde, 1879, Quar. Jour. Geo. Soc. 

 Lond., vol. 35, p. 382, Clinton Gr. 



insequalis, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 376, Hud. Riv. Gr. 



infrequens, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 382, Niagara Gr. 



major, Hinde, 1879, (Eunicites major,) 

 Quar. Jour. Geo. Soc, vol. 35, p. 374, 

 Hud. Riv, and Clinton Gr. 



rostratus, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 376, Hui Riv. Gr. 



serratus, Hinde, 1879, Quar. Jour. Geo. 

 Soc. Lond., vol. 35, p. 376, Hud. Riv. Gr. 

 Ortonia, Nicholson, 1872, Lond. Geo. Mag., 

 vol. 9. Synonym for Conchicolites, if 

 indeed both are not synonyms for 

 Cornulites. 



conica, syn. for Conchicolites flexuosus. 



intermedia, see Conchicolites intermedius. 



minor, see Conchicolites minor. 



Pal;eochorda, McCoy, 1848, Quar. Jour. 



Geol. Soc, vol. 4, p. 224. [Ety. palaios, 



ancient; chorde, intestine.] Trail very 



long, cylindrical, chord-like, frequently 



