Selachii

from WordNet (r) 3.0 (2006)
Selachii
    n 1: sharks; rays; dogfishes; skates [syn: {Elasmobranchii},
         {subclass Elasmobranchii}, {Selachii}, {subclass Selachii}]
    
from The Collaborative International Dictionary of English v.0.48
Selachii \Se*la"chi*i\, n. pl. [NL., fr. Gr. ??? a fish having
   cartilages instead of bones.] (Zool.)
   An order of elasmobranchs including the sharks and rays; the
   Plagiostomi. Called also {Selacha}, {Selache}, and
   {Selachoidei}.
   [1913 Webster]
    

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