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. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 668 CCELENTERATA. wmm Paljeacis cavernosa, H. A. Miller, 1891, Ad- vance Sheets 17th Rep. Geo. Sur. Ind., p. 4, Waverly Gi-. Pbotosi'Ongia coronata, P. cyathiformis, P. delicatula, P. inononema, P. polyneina, and P. tetranema, Dawson & Hinde, 1889, Trans. Roy. Soc. Can., vol., 7, pp. 37 to 43, Up. Taconic. Ptychoatylus, Gurley, 1884. The name was preoccupied bv Gabb in 18(>5. Recbptacclites elrodi, 8. A. Mi
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 668 CCELENTERATA. wmm Paljeacis cavernosa, H. A. Miller, 1891, Ad- vance Sheets 17th Rep. Geo. Sur. Ind., p. 4, Waverly Gi-. Pbotosi'Ongia coronata, P. cyathiformis, P. delicatula, P. inononema, P. polyneina, and P. tetranema, Dawson & Hinde, 1889, Trans. Roy. Soc. Can., vol., 7, pp. 37 to 43, Up. Taconic. Ptychoatylus, Gurley, 1884. The name was preoccupied bv Gabb in 18(>5. Recbptacclites elrodi, 8. A. Miller, 1892, Advance Sheets of 18th Rep. (ieo. Sur. Ind., p. 3, Up. Held. Gr. [PAL.—C(K. roo poorly Rhombodictpon globoam, James. d' Jned to be recognized. Spin yathus, Hinde. Synonym lOr Archse- ocyathus. Slephanella naticta, Hinde, 1891, Lond. Geo. Ma^., vol. 8, p. 22. Radiating lines of pyrites supposed to represent spicules. No generic or specific characters. Stromalopora ludUowemis and S. tubulorin, James. Too poorlv defined to warrant any recognition. Sykingostuoma. Type S. densum. • O^Ox SUBKINGDOM CCELENTERATA. The Order Rugosa has been called Tetracoralla, because the septa are said to be some multiple of four; and the Tabulata, Hexacoralla, because the septa are said to be a multiple of six. The internal cavity of a Graptolite, so far as 1 have been able to discover, is divided longitudinally into three or four departments, virhich is altogether different from the structure of the living Hydrozoa, where the interior part of the body consists of a single undivided cavity. It may be the Order Grap- tolida should be raised to the rank of a Class, because it, is so different in composi- tion and structure from the living Hydrozoa. Errata.—On page 168, insert "Family Calceolidte.—Calceola," and remove "Baryphyllum" to the "; On page 169, for "Family Helioporidii'" read "Family ; On page 1
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology