Saw shark

The saw shark is a fish you catch in the sea. Look for a very large, finned shadow. In the northern hemisphere look for it in Jun – Sep, from 4 PM – 9 AM. It can only appear after you have caught 50 fish. Nook's Cranny pays 12,000 Bells, C.J. pays 18,000 Bells.

A fin shadow in the sea from late afternoon until morning, after 50 catches. It sells for 12,000 Bells, or 18,000 to C.J., so warm-month night fishing really pays.