Terathopius:
Black Storm-Petrel, San Diego pelagic, California
Terathopius:
Black Storm-Petrel, offshore Puerto Angel, Oaxaca, Mexico
Terathopius:
Black Storm-Petrel, offshore Puerto Angel, Oaxaca, Mexico
Terathopius:
Least Storm-Petrel, offshore Puerto Angel, Oaxaca, Mexico
Terathopius:
Matsudaira's Storm-Petrel, Pacific Ocean, nr. Japan