Source : Webster's Revised Unabridged Dictionary (1913)

Sawtooth \Saw"tooth`\, n. (Zo["o]l.)
   An arctic seal ({Lobodon carcinophaga}), having the molars
   serrated; -- called also {crab-eating seal}.

Sterrink \Ster"rink\, n. (Zo["o]l.)
   The crab-eating seal ({Lobodon carcinophaga}) of the
   Antarctic Ocean.