retractile
Example Sentences
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Numerous pedal tentacles around the mouth, which are retractile within sheaths.
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various
Decapoda.—Four pairs of ordinary non-retractile arms which are shorter than the body, and one pair of tentacular arms, situated between the third and fourth normal arms on each side and retractile within special pouches.
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various
When he clambered up on the rostrum they extended their audio-appendages and retractile fingers and accorded him a round of applause.
From The Servant Problem by Young, Robert F.
The single prosthomere carries the retractile tentacles as its “parapodia.”
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" by Various
Mantle oval, covering the head and the greater part of the body; anterior tentacles, ill-developed; branchiae generally retractile.
From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various