'Sibbaldius tectirostris' definitions:

Definition of 'Sibbaldius tectirostris'

From: GCIDE

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]