Jaws - Submarine

Abruptly the sound of the motor stopped and the Whine Bottle jerked aloft like an airplane in an air current. His stomach dropped away. His head banged backward, bouncing off the padded headrest.
He half rose from his seat, twisting backward. An enormous black pupil, as flat as a pan, stared at him from six feet away. A huge, curved tooth was spiraling toward the bottom, and the shark's own blood was swirling in the water.
The shark had attacked from the starboard quarter. It had crunched the tiny submarine's stern, propeller and all, in its enormous jaws.

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Jaws: The Revenge, Part 2, Chapter 2