...Gill-cham' ber, a pocket or cavity covered by a flap, in which the gills lie... 
Worrallo Whitney 「A Guide for the Study of Animals」
...By thetime the larvae have developed to stage 21, external gills are present, thecaudal musculature and caudal fin have been differentiated, and the head isdistinguishable from the body...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...The gills are neveralike on both sides, varying from 15 to 19 in number...
Harry Thom Payne 「Game Birds and Game Fishes of the Pacific Coast」
...Nymph of May-fly (Chloeon dipterum) showing onright side wing-rudiment (a), on left tracheal gills (b)...
Geo. H. Carpenter 「The Life-Story of Insects」
...Nellie is asking what gills are...
Margaret Warner Morley 「The Insect Folk」
...The gills of fishes have a great many blood vessels running throughthem...
Margaret Warner Morley 「The Insect Folk」
...You see in fishes the blood vessels come into the gills and get theoxygen...
Margaret Warner Morley 「The Insect Folk」
...Some larvæ breathe by gills, and do not havespiracles until they are grown up, but all grown-up insects breathe byspiracles...
Margaret Warner Morley 「The Insect Folk」
...He is too big to lift out withthe hooks, and I can't see to get him bythe gills, and so I shall lose him...
Rowland E. Robinson 「In New England Fields and Woods」
...This was at a time when the limb buds could not be detected andwhen the external gills were evident only under close scrutiny...
Richard F. Johnston 「Natural History of the Salamander, Aneides hardii」
...He had atremendously stiff stock on—so hard that no pressure made it wrinkle, andso high that his pointed gills could hardly peer above it...
R. S. Surtees 「Mr. Sponge's Sporting Tour」
...Thenwith swift jets from the turbine arrangement of its abdominal gills,the strange monster darted back to a retreat among the weed stems,where it could devour its prey in seclusion...
Charles G. D. Roberts 「The Watchers of the Trails」
...
Hypobranchial: underneath (hypo) the gills...
Ernst Haeckel 「The Evolution of Man」
...On the other hand, we see a great advance in thestructure of the heart, which is found underneath the gills in the shape of acentralised muscular tube, and is divided into an auricle and a ventricle...
Ernst Haeckel 「The Evolution of Man」
...Now, the gills or respiratory organs also are formed at the fore-end ofthe alimentary canal...
Ernst Haeckel 「The Evolution of Man」
...The first consequence was the formation of lungs for breathing air; up to thattime the gills alone had served for respiration...
Ernst Haeckel 「The Evolution of Man」
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