90. Hæmatopus, oyster-catcher. Beak compressed, the tip wedgeshaped: 1 species.
91. Fulica, coot. Beak convex; upper mandible arched over the lower, which has a prominent angle: 7 species.
92. Parra, jacana. Beak roundish, bluntish; forehead wattled; wings spurred: 5 species.
93. Rallus, rail. Beak thicker at the base, compressed, acute: 10 species.
94. Psophia, trumpeter. Beak conical, convex, rather sharp; the upper mandible longer: 1 species.
95. Otis, bustard. Beak with the upper mandible arched: 4 species.
96. Struthio, ostrich and cassowary. Beak somewhat conical; wings unfit for flying: 3 species.
Order V. Gallinæ, Gallinaceous Birds.
97. Didus, dodo. Beak contracted in the middle, with two transverse rugæ; the tip of both mandibles bent inwards: 1 species, now extinct.
98. Pavo, pea-fowl. Head covered with feathers; feathers of the rump elongated, with eyelike spots: 3 species.