. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fio 1026.— iientonensis. pnstulosus, Hall, 1859, Pal. N. Y., vol. 3, p. 360, Low. Held. Gr. superbus, Billings, 1875, Can. Nat. and Geol., vol. 7, p. 239, Up. Held. Gr. trentonensis, Conrad, 1842, (Aaaphus tren- tonensis,) Jour. Acad. Nat. Sci., vol. 8, p. 277, and Pal. N. v., vol. 1, p. 235, Black H:v. and Tren- ton (Jrs. LiosTRACus, Angelin, 1852, Falreontologica Scandinavica, p. 23. [Ety. leioatrakos, s
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fio 1026.— iientonensis. pnstulosus, Hall, 1859, Pal. N. Y., vol. 3, p. 360, Low. Held. Gr. superbus, Billings, 1875, Can. Nat. and Geol., vol. 7, p. 239, Up. Held. Gr. trentonensis, Conrad, 1842, (Aaaphus tren- tonensis,) Jour. Acad. Nat. Sci., vol. 8, p. 277, and Pal. N. v., vol. 1, p. 235, Black H:v. and Tren- ton (Jrs. LiosTRACus, Angelin, 1852, Falreontologica Scandinavica, p. 23. [Ety. leioatrakos, smooth-8 helled.] Itody elongate; test smooth or with mi- croscopic j/unctures; glabella elevated, furrows faint; dorsal furrow faint in front; fixed cheek arclied downward at the sides; front limb concave; occipi- tal ring aculeate; head at tlie genal angle rounded; ends of the pleurje of the thorax ; pygidium minute, having few segments. Type L. ac- uleatus. aurora, Hartt, 18()8, (Con- ocephiilites aurora,) Acad. Geol., p. 653, St. John Gr. linnarsoni, Brogger, 1878, Paradoxides skifrene vid Krekling, p. 47, St. John Gr. linnarsoni var. alata, Mattbew, 1887, Trans. Roy. Soc. Can., p. 147, St. John Gr. neglectus, Hartt, 1868, (Conocephalites neglectus,) Acad. Geol., p. 652, St. John Gr. Probably a syn. for L. tener. ouangondianus, Hartt, 1868, (Conocepha- lites ouangondianus,) Acad. Geol., p. 648, St. John Gr. ouangondianus var. gibbus, Matthew, 1887, Trans. Roy. Soc. Can., p. 140, St. John Gr. ouangondianus var. immarginata, Mat- thew, 1887, Trans. Roy. Soc. Can., p. 139, St. John Gr. ouangondianus var. planus, Matthew, 1S87, Tracb. Roy. Soc. Can., p. 140, St. Joiin Gr. quadratus, Hartt, 1868, (Conocephalites quadratus,) Acad. Geol., p. 654, St. John Gr. toner, Hartt, 1868, (Conocephalites tener,) Acad. Geol., p. 652, St. John Gr. Lifgomm, Clarke, syn. for Spathiocaris. lulhfri, see Spathiocaris luthi -i. L, ciiocKPiiALUs, Owen, 1852, Geo. Wis., i>wa, and Minn.
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