Rev. H. B. Tristram on new species of African Birds. o7 



If travellers who collect skeletons, after removing as much 

 flesh as possible from the subject, would merely macerate it for 

 an hour in water, it w^ould save much labour and time in mount- 

 ing. It is also as well to leave the large wing- and tail-feathers, 

 and the skin of the scalp on the specimens, in order to assist in 

 identifying the species, where the skins are not transmitted also. 



Again, if collectors in preparing skins would extract the brain 

 with a wire, instead of breaking up the whole of the back part 

 of the skull, many valuable contributions to the osteology of 

 Birds would be preserved, in the heads of then' specimens. 



V. — Characters of apparently new species of Birds collected in 

 the great Desert of the Sahara, southwards of Algeria and 

 Tunis. By the Rev. H. B. Tristram, F.L.S. 



1. Ckrthilauda salvini, Tristram. 



Supra pallide isabellina, superciliis indistinctis et corpore subtiis 

 albis, pectore summo vix conspicue nigro guttato; striga 

 rictali indistincte nigricante : alis nigricantibus, fasciis 

 duabus latis, altera ad basin secundariorum, altera terminali, 

 albis : secundariis tribus externis dorso concoloribus ; pri- 

 mai'iis sex externis, nisi in parte basali, nigricantibus : Cauda 

 nigra, recti-icibus duabus extimis albo extiis marginatis, dua- 

 bus mediis dorso concoloribus : tectricibus alarum inferiori- 

 bus niveis : rostro pallide fusco : pedibus schistacescenti- 

 albis : long, tota 7"8, alee 4*5, caudle 3'1, tarsi 1'3. 

 $ mari similis. 

 Hab. in Sahara Algeriensi. 



Obs. Differt a Certhilaudd desert orum statura minore, fasciis 

 alarum albis latioribus, et secundariis multo minus elongatis. 



2. Galerida macrorhyncha, Tristram. 



Cristata : corpore suprk arenicolori-fusco, plumarum parte media 

 nigricante : primariis nigricanti-brunneis, cervino extiis 

 limbatis : cauda nigricante, cervino limbata : rectricum ex- 

 ternarum apicibus cervinis : subtiis sordide alba, antice 

 rufescente tincta ; gula et pectore nigro striatis ; tectricibus 

 alarum inferioribus pallide cervinis; rostro fusco, maiidibula 

 inferiore multo pallidiore ; pedibus pallide carneis : long, 

 tota 7'8, alse 4*5, caudse 2'8, rostri }\ rictu 1*0, tarsi 1'05. 

 Hab. in Saharce Algeriensis parte boreali. 

 Obs. Affinis Galerida cristatce, sed statura majore et rostro 

 elongato, iucurvo distinguenda. 



