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Definition of External gill
1. Noun. Occurs in some mollusks and in tadpoles and other immature amphibians.
Lexicographical Neighbors of External Gill
Literary usage of External gill
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Encyclopædia Britannica: A Dictionary of Arts, Sciences, Literature and by Hugh Chisholm (1911)
"Mantle open in front, with two pallia! sutures; external gill-plates smaller than
the ... Siphons present ; external gill-plate smaller than the internal; ..."
2. The Cambridge Natural History by Sidney Frederick Harmer, Arthur Everett Shipley (1901)
"The external gills lead to a further consideration. Protopterus possesses a
vestigial external gill on the shoulder -girdle. ..."
3. Outlines of Chordate Development by William Erskine Kellicott (1913)
"B. First external gill and associated vessels in young tadpole. ' Internal gill
and associated vessels in the tadpole after the disappearance of the ..."
4. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, Literature and (1910)
"Each external gill develops as a projection of ectoderm with mesodermal core near
the upper end of its visceral arch; the main aortic arch is prolonged ..."
5. Proceedings of the Royal Physical Society of Edinburgh by Royal Physical Society of Edinburgh (1906)
"The external gill makes its first appearance as a rounded elevation of the ...
The external gill rudiment appears long before the clefts are perforated. ..."
6. A Treatise on Zoology by Edwin Ray Lankester (1906)
"... the external gill-plate with a reflected lamella ; British. Lepton, Turton;
mantle with a single suture ; the mantle edges provided with tentacles ..."
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