[I'ART I, 



MOTACILLIDill. 



151 



Z'. bewivkii. 

 lyiu of o/4i. 

 . The ap. 

 iut iu luvor I 



let priniarj, 



uiary), l.Gll; 



.90; tnrsuj, 



I slight notch 

 rtioiity of the 

 d forward to 

 uaaal groove 

 nr e'lg« ; tlie 

 *rd nor over- 



niiitt (witk- 



loug««r X\m 

 inch eiuftrgi- 

 arly equal to 



arsi length- 

 apn(e, and 



to the very 



priiutines, 

 iiiguish tlie 

 so closely 

 aw. The 

 js, cniargi- 

 riniaries— 

 also it has 



lan jrenera 

 the I'aoiily 



Motaollla. 

 Tail longer than the wings ; hind claw comparatively short, 

 and couHiderably curved. Feathers of back without lighter 

 edges ; no spots nor streaks on breast. Tail doubly 'jrked, or 

 the central feathers nearly equal to the lateral, and longer 

 than intermediate ones. Tip of wing formed by outer three 

 piiraaries ; the distance between the 3d and4tU about one- 

 third that between the 4th and ^tli. Tarsi lengthened ; 

 claw Muiall ; hind toe and claw shorter than the middle, its 

 claw short, considerably curved, less than the toe alone ; 

 lateral toes nearly equal MotacUla, 



An thus. 

 Tiiil decidedly shorter than the wings ; less than half the whole 

 length of bird ; simply emarginate and rounded. Hind claw 

 lengthened ; only slightly curved. Feathers of back with 

 paler edges ; breast streaked with dusky. 



a. WitKjK much pointed, and lengthened. 



Point of wing formed by four outer primaries, of which the 

 4tli sometimes a little shorter than 3d. nin<l toe and claw 

 as long as middle, shorter than tarsus, tiie claw alone 

 usually a little longer than the toe itself, and slightly 

 curved ; inner toe and claw longer than the outer ; out- 

 stretched toes falling short of the tip of tail ; hind toe and 

 claw shorter than tarsus Anthus, 



Point of wings formed by four outer primaries, the 1st 



longest, or as long as others. Legs stout, the outstretched 



toes reaching almost to tip of tail. Hind toe and claw 



longer than tarsus, the claw very long, but equal to the 



I toe proper . . . Neocorys. 



h. Wings short, rounded. 



Point of wings formed by four outer primaries of nearly 

 equal length ......... Notiocorys, 



Point of wings formed by five outer primaries, the 1st shorter 

 than 3d • . Pediocorys. 



MOTACILLA, Lmsr. 



Motacilla, Linn. S. N. 173.5. (Type Motacilla alhn.) 



The first mentioned species under Motacilla, in the 10th edition 

 of the Systema Naturae of Linnseus, is luscinia, or tlie European 

 Nifrhtingale, If this work be talien as the starting point of the 

 LiiHuean binomial nomenclature, it will be necessary to find some 

 Other name for the genus, perhaps Fallenura, Pallas (fide Gray). 



J, «.' 



rv^ 



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