sibbaldius tectirostris

1 definition found

sibbaldius tectirostris - Collaborative International Dictionary of English v.0.48 :

  Finback \Fin"back`\, n. (Zool.)
     Any whale of the genera Sibbaldius, Bal[ae]noptera, and
     allied genera, of the family Bal[ae]nopterid[ae],
     characterized by a prominent fin on the back. The common
     finbacks of the New England coast are Sibbaldius tectirostris
      and S. tuberosus.
     [1913 Webster]