Advanced Text-book of Zoology for Junior Students |
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Page 21
... zoöid sur- rounded by a circle or crescent of ciliated tentacles.— Ex . Sea - mats ( Flustra ) , Lace - coral ( Fenestella ) . CLASS II . TUNICATA . - Animal simple or compound , enclosed in a leathery or gristly case . An imperfect ...
... zoöid sur- rounded by a circle or crescent of ciliated tentacles.— Ex . Sea - mats ( Flustra ) , Lace - coral ( Fenestella ) . CLASS II . TUNICATA . - Animal simple or compound , enclosed in a leathery or gristly case . An imperfect ...
Page 62
... zoöids , and are not spoken of as distinct animals for reasons which will be immediately evident . When the zoöids produced by budding remain permanently attached to one another and to the parent organism which produced them , the case ...
... zoöids , and are not spoken of as distinct animals for reasons which will be immediately evident . When the zoöids produced by budding remain permanently attached to one another and to the parent organism which produced them , the case ...
Page 63
... zoöids become completely independent beings ; and they are often wholly unlike the original zoöid in structure and in habits , so much so that they have in various cases been described as altogether distinct animals . Discon- tinuous ...
... zoöids become completely independent beings ; and they are often wholly unlike the original zoöid in structure and in habits , so much so that they have in various cases been described as altogether distinct animals . Discon- tinuous ...
Page 64
... zoöids which remain permanently connected with one another , and partly of dissimilar zoöids which are detached to lead an independent life , all alike being the result of the development of a single ovum . Zoöid . - The term " zoöid ...
... zoöids which remain permanently connected with one another , and partly of dissimilar zoöids which are detached to lead an independent life , all alike being the result of the development of a single ovum . Zoöid . - The term " zoöid ...
Page 70
Henry Alleyne Nicholson. ing of a greater or less number of separate polypites or zoöids , all connected with one another by a common flesh or cœnosarc , and all forming parts of a plant - like rooted colony . In some of the Corynida the ...
Henry Alleyne Nicholson. ing of a greater or less number of separate polypites or zoöids , all connected with one another by a common flesh or cœnosarc , and all forming parts of a plant - like rooted colony . In some of the Corynida the ...
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Common terms and phrases
abdomen Actinozoa alimentary canal animal Annelida antennæ aperture appendages auricle beak birds bivalve blood body body-cavity bones bony branchiæ buds calcareous called cavity chambers characterised chitine cilia cloaca cœnosarc composed comprising consists contractile coral Crustacea destitute developed digestive disc distinct division dorsal Echinodermata external extinct extremely feet filaments fins fishes fluid Foraminifera fore-limbs furnished GEOLOGY gills gullet head heart horny Hydrozoa incisors Infusoria inhabit insects integument intestine jointed known Lancelet legs limbs living locomotion lower jaw lungs Mammals maxillæ Medusa membranous Mollusca mouth nervous system opens organs pair placed plates polypes polypite possess present produced Protozoa pseudopodia reproductive Reptiles respiration respiratory rudimentary sarcode Scolecida segments shell side single skeleton skin sometimes species spines sponges stomach structure Sub-class sub-kingdom surface swimming tail teeth tentacles thorax toes tube usually ventral ventricle vertebral column Vertebrata Vertebrates whilst wings Zoantharia zoöids
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Page 408 - Crown 8vo, pp. 800 7s. 6d. The School Etymological Dictionary and Word-Book. Combining the advantages of an ordinary pronouncing School Dictionary and an Etymological Spelling-book. Fcap. 8vo, pp. 254. 2s. STORY. Graffiti D'ltalia. By WW STORY, Author of