14 MR. P. L. SCLATER ON BIRDS FROM ST. LUCIA. [JaU. 4, 



appears to be referable to a new genus of Mniotiltidse. The fol- 

 lowing is a list of the species, with the local names as given by Mr. 

 Semper : — 



1. Thri/othorus mesoleucus, sp.nov. Local name "Rossignol." 



2. Leucopeza semperi, sp. et gen. nov. Local name, " Pied- 



blanc." 



3. Setophaga ruticilla (Linn.). Local name, " Carrougette." 



4. Progne dominicensis (Gm.). Local name, " White-breasted 



Swallow." 



5. Euphonia flavifrons (Sparrm.). Local name, " Moisson a 



couleurs." 



6. Phonipara bicolor (lAnn.'). Local name, " Grass-sparrow." 



7. Mgialitis semipalmata (Bp.) Local name, " Becasse h. 



collier." 



8. Tringafuscicollisiy'iexW.'). Local name, "Becasse." 



I append descriptions of the two new species. 



Thryothorus mesoleucus, sp. nov. 



Supra terreno-hrunneus, aliscaudaque nigro transfasciatis, uropy- 

 gii plvmis laxis, albo sub apicem pmictatis : subtus pure cdbiis 

 hypochondriis et crisso fulvis, hoc indistincte nigro macidato : 

 rostro superiore corneo, inferiore albicante, pedibus fuscis : 

 long, tola 4*0, alee 2"0, caudcB \'b, rostri a rictu '8. 



Hab. ins. St. Lucia Antillarum {Semper). 



Mus. P. L. S. 



Obs. Minor statura quam T. martinicensis, et rostro longiore 

 tenuiore et magis incurvo : quoad colores abdomine albo satis 

 diversus, 



Leucopeza sempert, gen. et sp. nov. (Plate II.) 



lueucopeza.*, gen. nov. exfamilia Mniotiltidarum, ad Helmintherum, 

 Helminthophagam et hvjusmodi genera spectans, rostro fere 

 simili, sed alls rotundatis, remige tertio et quarto longissimis, 

 secundo quintum ceqnante, primo quam sextus p)aulo breviore 

 distinguendum. Ptilosis fere unicolor, cineracea, immaculata. 

 Pedes fortes. Tarsi elongati. Cauda paulum rotundata. 



Leucopeza semperi, sp. nov. (Plate II.) 



Cineraceus unicolor, dorso postico in olivaceum traliente, subtus 

 pallidior, medialiter albescens, ventre medio fere pure albo : 

 rostro corneo, pedibus albis : long, tola 57, alee 2-7, caudce 

 2*2, tarsi 0'9, rostri a rictu 0"8. 



Hab. ins. St. Lucia Antillarum (Semper). 



Mus. P. L. S. 



* AfVKos, (dbt(s, et Tretia, pes — ex nomine yulgari " Picd-blanc." 



