FIN IS GENERALLY NOT UNIFORM IN COLOR

Step 2: Identify porbeagle and oceanic whitetip fins.

A STOP indicates that the fin is not a species covered in this guide.  Additional information regarding identification of these species was omitted to keep this guide as concise and easy to use in the field as possible.
Does the fin have distinct WHITE or BLACK markings on fin apex, free rear tip or trailing edge?
Markings are black
Markings are white

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