coracoid and scapula fused, [8];

habits, [81] f.;

F. aquila, [81], [82];

F. minor, [81]

Fregatidae, [55], [70], [81]

Fregilinae, [552] f.

Fregilupus, [559], [561];

F. varius, [561]

Friar-bird, [568]

Frigate-bird, [70], [82];