. On the natural history and classification of birds . ii. 75. a. f. 1. Leptotila, Sw. (fig. 299- b, c. 300. b) First quill sud-denly narrowed; the fourth longest. Tarsus length-ened, and much longer than the hallux. All the toeslong and slender. Knees naked. America only ?P. rufaxilla. Nat. Lib. v. pi. 24. Peristera, Sw. (fig. 299. b, e. 300. a) Bill lengthen-ed, slender. Wings pointed ; the second quill moderate. Tarsi rather short. Lateral toes equal;hinder toe very short, not more than half the lengthof the middle toe. Australia only.*P. calcoptera. Nat. Lib. v. pi. 21. script
. On the natural history and classification of birds . ii. 75. a. f. 1. Leptotila, Sw. (fig. 299- b, c. 300. b) First quill sud-denly narrowed; the fourth longest. Tarsus length-ened, and much longer than the hallux. All the toeslong and slender. Knees naked. America only ?P. rufaxilla. Nat. Lib. v. pi. 24. Peristera, Sw. (fig. 299. b, e. 300. a) Bill lengthen-ed, slender. Wings pointed ; the second quill moderate. Tarsi rather short. Lateral toes equal;hinder toe very short, not more than half the lengthof the middle toe. Australia only.*P. calcoptera. Nat. Lib. v. pi. 21. scripta. PI. Col. 187. Ptilophyrus, Sw. CrownbirdA Size large. Wings * As the bronze-winged pigeons of New Holland appear to me the truetypical examples of this genus, I have retained to them, as is usual in suchcases, the subgeneric name ; but not having finished the analysis of thisfamily, I do not venture to characterise the other subgenera : the same ob-servation is applicable to the next genus. f See Vol. I. p. 233. 350 ON THE CLASSIFICATION OF short. Tail long, rounded. Tarsus much length-ened. Head with an elevated compressed coronatus. Ois. dAf. pi. , Forster.* Bill short, strong, 301compressed, entire. Nostrils tubular,protected by hard, elevated, and com-plicated folds, which envelope thebase. Front of the head, and part ofthe face, naked. Wings very very short, strong. Tarsalscales small, rough. Outer and innertoe slightly connected; the innershortest, and cleft at the base : hin-der toe short, not elevated, and placedon one side, as in the genus Colius: middle toelengthened. Claws moderate; much worn by vaginalis. PI. Col. 509. Family large. Feet remarkably developed, very hinder toe lengthened, and on the same plane withthe , Shaw. Bill moderate, depressed at the base, straight; the tip obsoletely notched. Nostrils naked, and placed near the mid-dle of the bill, Feet ver
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