A Manual of Palaeontology for the Use of Students: With a General Introduction on the Principles of Palaeontology |
From inside the book
Results 1-5 of 59
Page 49
... arms . ” — Ex . Lamp - shells ( Terebratula ) . B. MOLLUSCA PROPER . - Nervous system consisting of three principal pairs of ganglia . Heart well developed , consisting of at least two chambers . CLASS IV . LAMELLIBRANCHIATA ( Bivalve ...
... arms . ” — Ex . Lamp - shells ( Terebratula ) . B. MOLLUSCA PROPER . - Nervous system consisting of three principal pairs of ganglia . Heart well developed , consisting of at least two chambers . CLASS IV . LAMELLIBRANCHIATA ( Bivalve ...
Page 110
... arms . " The arms are truly prolongations of the body , are hollow , and contain prolonga- tions of the stomach in their interior . The arms are , further , grooved on their under surface for the reception of the ambulacral or water ...
... arms . " The arms are truly prolongations of the body , are hollow , and contain prolonga- tions of the stomach in their interior . The arms are , further , grooved on their under surface for the reception of the ambulacral or water ...
Page 111
... arms , " but the size of the disc is very different in different species , and the arms vary greatly in length and in number . In many living and extinct forms the " disc " is inconspicuous , and appears to be formed simply by the ...
... arms , " but the size of the disc is very different in different species , and the arms vary greatly in length and in number . In many living and extinct forms the " disc " is inconspicuous , and appears to be formed simply by the ...
Page 112
... arms , and termed the " ambulacral grooves . " Each ambulacral groove is continued along the lower surface of one of the arms , tapering gradually towards the extremity of the latter . The floor of each groove is constituted by a double ...
... arms , and termed the " ambulacral grooves . " Each ambulacral groove is continued along the lower surface of one of the arms , tapering gradually towards the extremity of the latter . The floor of each groove is constituted by a double ...
Page 113
... arm of a Star - fish from which the soft parts have been removed ( fig . 67 ) . In such a section the ambulacral ossicles ( a , a ) are seen in the centre of the lower surface , united along the middle line by their inner extremities ...
... arm of a Star - fish from which the soft parts have been removed ( fig . 67 ) . In such a section the ambulacral ossicles ( a , a ) are seen in the centre of the lower surface , united along the middle line by their inner extremities ...
Other editions - View all
Common terms and phrases
abundant allied ambulacral anchylosed animal aperture appear appendages articulated attained beak beds belong Birds Bivalves body bones bony Brachiopods calcareous calyx Cambrian Carboniferous Carboniferous Rocks Cephalopods Chalk characterised clavicles commence composed comprising consists coral Cretaceous Cretaceous period Crinoids Crustaceans deposits Devonian division dorsal Eocene Eocene Tertiary existing extinct feet fins fishes Foraminifera formation forms fossil Ganoids genera genus gills Graptolites horny Hydrozoa incisors integument Jurassic known Lastly latter less limbs Limestone living lower jaw Lower Silurian Mammals margin Mesozoic Miocene molars Mollusca mouth occur Oolites operculum pair Paleozoic pectoral Permian placed plants plates Pliocene Polyzoa possession Post-Pliocene Post-Tertiary posterior present day regarded remains represented Reptiles ribs Sandstone segments septa shell side Silurian Rocks single siphuncle skeleton sometimes spines strata structure sub-kingdom sub-order surface sutures tail teeth toes Trias Triassic tube Upper Cambrian Upper Silurian usually vertebræ whilst whorls Zoantharia
Popular passages
Page ii - A Manual of Palaeontology, for the Use of Students. With a General Introduction on the Principles of Palaeontology.
Page 607 - STORMONTH. Etymological and Pronouncing Dictionary of the English Language. Including a very Copious Selection of Scientific Terms. For Use in Schools and Colleges, and as a Book of General Reference. By the Rev. JAMES STORMONTH. The Pronunciation carefully Revised by the Rev. PH PHELP, MA Cantab. Tenth Edition, Revised throughout. Crown 8vo, pp. 800. 7s. 6d. Dictionary of the English Language...