| 单词 | Gastropoda |
| 例句 | This phylum can be segregated into seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda. Fundamentals of Biology 2015-01-01T00:00:00Z The Gastropoda are mainly characterized by a loss of symmetry, produced by torsion of the visceral sac. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z A distinctive feature of the Cephalopoda is their bilateral symmetry and the absence of anything like the torsion of the visceral mass seen in the Anisopleurous Gastropoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" CHITON, the name1 given to fairly common littoral animals of rather small size which belong to the phylum Mollusca, and, in the possession of a radula in the buccal cavity, resemble more especially the Gastropoda. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" And I sincerely felt that it was better for me to be where I was, occupied with putting the many-colored family of the Purpura and the twenty-three varieties of the Gastropoda in order. The Story of a Child Gastropoda includes shell-bearing species as well as species with a reduced shell. Fundamentals of Biology 2015-01-01T00:00:00Z This conclusion has shown that the Euthyneura do not represent an archaic form of Gastropoda, but are themselves derived from streptoneurous forms. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z There does not seem any room for doubting that each orifice corresponds to the reno-pericardial orifice which we have seen in the Gastropoda, and shall find again in the Lamellibranchia. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Originally the Chitons were placed with the limpets, Patella, in Cuvier’s Cyclobranchia, an order of the Gastropoda. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" Bending over the glass cases, the gallant lad was already muttering choice words from the naturalist's vocabulary: class Gastropoda, family Buccinoidea, genus Cowry, species Cypraea madagascariensis, etc. Twenty Thousand Leagues Under the Sea Fig 3.—Sketch of a model designed so as to show the effect of torsion or rotation of the visceral hump in Streptoneurous Gastropoda. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z This condition, probably an archaic one, distinguishes the Aspidobranchia from other Gastropoda. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z The circulatory organs, blood-vessels and blood of Nautilus do not differ greatly from those of Gastropoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" For a discussion of the relationship of the Gastropoda to the remaining classes of the phylum, see Mollusca. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z This is the condition attained in most Gastropoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" |
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