. On the anatomy of vertebrates [electronic resource] . both. The gape is wide ; the foodtaken on the wing. Fam. 1. Cypselidce. Ex. Swift. 2. TrochilidcE. Ex. Humming-bird. 3. Caprimidgida. Ex. Nightjar. 4. Trogonidce. Ex. Puff-bird. 5. PrionitidcR. 6. Meropidce. 7. GalbulidcB. 8. Coraciadce. 9. CapitonidcB. 10. AIcedinidee. 11. Bucerotidce. Ex. Hornbill. Order. VI. SCANSORES. Climbing Birds. Toes arranged in pairs, two before and twobehind, fig. 8. Most oviposit in holes of decayed trees. Larynxtrimuscular. Monogamous.
. On the anatomy of vertebrates [electronic resource] . both. The gape is wide ; the foodtaken on the wing. Fam. 1. Cypselidce. Ex. Swift. 2. TrochilidcE. Ex. Humming-bird. 3. Caprimidgida. Ex. Nightjar. 4. Trogonidce. Ex. Puff-bird. 5. PrionitidcR. 6. Meropidce. 7. GalbulidcB. 8. Coraciadce. 9. CapitonidcB. 10. AIcedinidee. 11. Bucerotidce. Ex. Hornbill. Order. VI. SCANSORES. Climbing Birds. Toes arranged in pairs, two before and twobehind, fig. 8. Most oviposit in holes of decayed trees. Larynxtrimuscular. Monogamous. 12 ANATOMY OF VERTEBRATES. Fam. 1. RampliastidcB. Ex. Tucan. 2. Bucconidce. Ex. Barbet. 3. Cucididce. Ex. Cuckoo. 4. Picidce. Ex. Woodpecker. 5. Musophagidce. Ex. Touraco or Plantain-eater. 6. Collides. Ex. Coly. 7. Psittacidce. Ex. Parrot. Order VII. RAPTORES. Rapacious Birds. Beak, strong, curved, sharp-edged, andsharp-pointed, fig. 9 ; legs short and robust, with three toes beforeand one behind, armed with long, strong, crooked talons, fig. 10. 10. Raptorial foot of Eagle. Fam. 1. Nocturnes. Ex. Owl. 2. Diurnes. Ex. Hawk, Eagle, Vulture. An eighth group of birds has been characterised under the nameCursores, Coursers, or 4 Running-birds,1 by the arrested deve-lopement of the wings unfitting them for flight, and by the com-pensating size and strength of the legs, by which they are enabledto run swiftly on the ground. This is not, however, a naturalorder; some of its exponents have demonstrably closer affinities toother groups of which they are wingless members, just as thePenguins and Auks bear relation to families of the Natatorialorder. Thus the Notornis is a modified Coot. The Ostrich bearsthe same relation to the Bustards. The extinct Didus and Pezo-phaps are most nearly allied to the Columbaceous group ofRasores. Apteryx and the allied extinct Dinornis and Palapteryx,bear affinity to the Megapodial family of Gallince. 1 Proceri, Illig.; Plalystemce, Nitzsch; Sti ulhioni
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