The Canadian Naturalist and Quarterly Journal of ScienceDawson Bros., 1869 |
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Стр. 284
... hydrospires are reniform , ovate or lunate , and either internal or external . 4 . 5 . 6 . 7 . a . Fig . 4 Hydrospire of Caryocrinus ornatus . a , surface view ; the dots around the margin are the spiracles , the small dotted lines ...
... hydrospires are reniform , ovate or lunate , and either internal or external . 4 . 5 . 6 . 7 . a . Fig . 4 Hydrospire of Caryocrinus ornatus . a , surface view ; the dots around the margin are the spiracles , the small dotted lines ...
Стр. 285
... hydrospires , " and their apertures , " pores , " " fissures , " or " spiracles , " according to their form . - In Caryocrinus ornatus the hydrospires ( fig . 4 , ) are of a rhomboidal form , and have each of the four sides bordered by ...
... hydrospires , " and their apertures , " pores , " " fissures , " or " spiracles , " according to their form . - In Caryocrinus ornatus the hydrospires ( fig . 4 , ) are of a rhomboidal form , and have each of the four sides bordered by ...
Стр. 286
... hydro- spires with vertical diagonals in the other two . In Pleurocystites the hydrospires are also of a rhomboidal form , but instead of having the tubular structure of Caryocrinus , they consist of a number of parallel inward folds of ...
... hydro- spires with vertical diagonals in the other two . In Pleurocystites the hydrospires are also of a rhomboidal form , but instead of having the tubular structure of Caryocrinus , they consist of a number of parallel inward folds of ...
Стр. 289
... hydrospires may be either partly or wholly concealed under the arm . The " point " to which Mr. Lyon alludes is seen above , in fig . 11 , just below the letter b . It is the same as the " small triangular pyramid " in C. Canadensis ...
... hydrospires may be either partly or wholly concealed under the arm . The " point " to which Mr. Lyon alludes is seen above , in fig . 11 , just below the letter b . It is the same as the " small triangular pyramid " in C. Canadensis ...
Стр. 290
... hydrospire through this fissure . There are ten hydrospires , connected together in pairs , each pair communicating with the exterior through a single spiracle . The arrangement of the folds varies according to the species . In P ...
... hydrospire through this fissure . There are ten hydrospires , connected together in pairs , each pair communicating with the exterior through a single spiracle . The arrangement of the folds varies according to the species . In P ...
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abundant Acadia acid ambulacral furrows America animals aperture appears Arctic arms Aspidium Bay of Fundy beds birds boulder clay Canada Canadensis Canadian carbonate Carboniferous central character coast collection colour common Crinoids crust Crustacean Cystidea deposits depth described Devonian dredge Echinodermata Echinoderms Entomostraca Estheria existence fathoms feet fish flora formation fossil Gaspé genera genus geological geologists Gulf Gulf of St hydrospires inches indigenous insects Island known Lake Superior larvæ Lawrence limestone Linn lower Macoun matter microscopic Mollusc Montreal Mount Uniacke mountain mouth natural naturalists nearly North northern observed occur Ontario organs paleozoic paper period plants plates Platyceras Polystichum pores portion present Principal Dawson probably Prof Province Quebec recent remarkable River rocks sandstones seen shell shore side silica Silurian species specimens spinulosum strata supposed surface temperature thickness tion vault vegetation volcanic