129 



no back toe, but in lieu thereof a strongclaw} and its tail is rounded. 

 lt may be thus chaiacterized : 



PuFFiNus FULiGiNosus. Pvff. brunneiis sepicolor ; alis saturatiort- 



bus ; gula griseo leviter tinctd ; rostro concolore ; tarsis externė 



digitisque externis brunneis ; tarsis inter/ie palamisque fusco- 



ochraceis. 



Long. 18 unc. ; alce, 12; tarsi, 2-į; digiti medii, 2-f; rostri, a 



rietu ad apicem, 2-f, a fronte ad apicem, 1^. 

 Mr. Strickland concluded by remarking, that although a single and 

 perhaps pūrely accidentai instance of aspecies appearing in this coun- 

 try may not fully entitle it to be ranked as a Biitish bird, yet that the 

 circumstance is worthy of being noticed, as it is only by carefuUy 

 recording such instantes as do occur that we can decide what is en- 

 titled to that appellation, and be thereby enabled to perfect our local 

 catalogues. 



At the iequest of the Chairnian, Mr. Gould exhibited numerous 

 specimens oftvvo ^ird* hitherto confounded under the nameof Mota- 

 cillajlava. In a communication which accompanied his exhibition, 

 Mr. Gould explained the differences between the species, and entered 

 at soine length into their history. One of them, the yeltoiv Wagtail 

 of England, was described by Ray under the name of Mot.Jlava: 

 its head is of a fine olive colour, and the stripe above and belovv the 

 eye is of a bright yellow. The other, the Mot.Jlava of Linnaeus, has 

 the head of a lead colour approaching to blue, and the stripe above 

 and beIow Ihe eye of a ciear vvhite. The latter bird does not appear 

 t'j have been ever met with in England : it is the one described by Con- 

 tinental authors under the Linnean name ; vvhile British vvriters have 

 as constantly described under that name the bird to which it was 

 originally given by Ray, and wh:ch regularly visits their own country. 

 For Ray's bird, Mr. Gould suggested that the name of Mot. jiava, 

 under which it was described by our illustrious countryman, ought, 

 according to the established rules of nomenclature, to be retained. 

 To that of Linnaeus, M. Temminck, and other Continental authors, 

 he proposed to apply the name of Mot. neglecta. 



The species may be thus characterized : 



MoTACiLLA FLAVA, Ray. Mot. suprU oUvaceo-viridis, svbtiisflava; 

 rectricibus duabus lateralibus dimidiato obligue albis ; capite oliva- 

 ceo ; strigd supra- et infra-oculari jlavd. 

 Foem. Coloribus mag\s obscuris ; capite dorso concolore; strigis 

 ocularibus obscure flavis. 



MoTACiLLA NEGLECTA. Mot. svprci oUvaceo-viridis, subths flava ; 



rectricibus duabus lateralibus dimidiato oblicue albis ; capite plum- 



bto ; strigd supra- et infra-oculari albd. 



Foem. Coloribvs magis obscuris ; capite plumbeo-olivaceo ; strigis 



ocularibus mintis conspicuis. 



Mr. Gould further remarked, that the difiFerences pointed out in 



these characters do not depend upon season j there being on the 



table specimens of Mot. neglecta, the blue-headed fVaglail, from Swe- 



