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/sɪˈleɪkɪən/ · adjective
(zoology) Pertaining to (what is now classified as) the superorder Selachimorpha or division Selachii, comprising the sharks; or, sometimes more broadly, to the subclass Elasmobranchii, including sharks, rays and related species..
Fig. 4-10 shows crude apparatus which was used to make rough measurements of the vertical forces produced by selachian tails.
Telling selachian sharks apart from batoid skates and rays is relatively easy (with some exceptions noted below), but telling skates (rajiforms) apart from rays (myliobatiforms) can be more challenging.
These two tours had whetted the colonies' appetite for Royal visits, and by the turn of the century that appetite was positively selachian.
Leary frowned and then smiled his selachian smile.
However, some selachians enter freshwater and a few, like the stingray Paratrygon motoro, are even restricted to freshwater.
Use selachian when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Selachian means (zoology) Pertaining to (what is now classified as) the superorder Selachimorpha or division Selachii, comprising the sharks; or, sometimes more broadly, to the subclass Elasmobranchii, including sharks, rays and related species..
Common synonyms include elasmobranch.
The opposite depends on the specific sense.
Fig. 4-10 shows crude apparatus which was used to make rough measurements of the vertical forces produced by selachian tails.
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