78 



gui colorfasciam transversam efficit ; lined angustd a nare ad 

 oculum ; genis corporeąue subtūs albis, hoc colore in cinereum ad 

 latera transeunte ; rostro, pedibusgue fuscis. 



Long. tot., 5 unc. ; caud., 2į; alčs, 2^; rost. ^ ; tarsi, \. 



Hab. St. lago. 



Obs. This is in every respect a typical Pyrgita, and rather smaller 

 than the common species, P. domestica. 



Mr. Gould then called the attention of the Members to some spe- 

 cimens of M. alha and M. Yarrellii, which presented in a very de- 

 cided manner the distinctions referred to by him at the lašt Meeting. 

 He afterwards characterized a new species of that genus under the 

 name of 



MoTACiLLA LEUcopsis. Mot. fūcie, vertice, plumis auricularibus, 

 gula, abdomine, crisso, rectricibus caudce duabus externis albis ; 

 primuriis, tertialibus, tectricibus majoribus minoribusąue alarum 

 albis į notd pectorali semilunari, occipite, colio, dorso, humeris, 

 uropygio, rectricibusąue acto caudte intermediis 7iigris, primariis 

 ad apicem et interni nigrescenti-fuscis ; rostro pedibusque nigro- 

 fuscis. 



Long. tot., 7 unc. ; al<B, 3f ; caud., 3f ; rost., į; tars., 1. 



Hab. India. 



