Rev. H. B. Tristram on new species of African Birds. 57 
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 would 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 their 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. Certhilauda salvini, Tristram. 
Supra pallide isabellina, superciliis indistinctis et corpore subtus 
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 coneoloribus; pri- 
mariis sex externis, nisi in parte basali, nigricantibus : cauda 
nigra, rectricibus duabus extimis albo extus marginatis, dua¬ 
bus mediis dorso coneoloribus : tectricibus alarum inferiori- 
bus niveis: rostro pallide fusco : pedibus schistacescenti- 
albis : long, tota 7*8, alse 4*5, caudse 3*1, tarsi 1*3. 
$ mari similis. 
Hab. in Sahara Algeriensi. 
Obs. Differt a Certhilauda desertorum statura minore, fasciis 
alarum albis latioribus, et secundariis multo minus elongatis. 
2. Galerida macrorhyncha, Tristram. 
Cristata : corpore suprh arenicolori-fusco, plumarum parte media 
nigricante: primariis nigricanti-brunneis, cervino extus 
limbatis : cauda nigricante, cervino limbata : rectricum ex¬ 
tern arum apicibus cervinis : subtus sordide alba, antice 
rufescente tincta; gula et pectore nigro striatis; tectricibus 
alarum inferioribus pallide cervinis; rostro fusco, mandibula 
inferiore multo pallidiore; pedibus pallide carneis : long, 
tota 7*8, alse 4*5, caudse 2*8, rostri a rictu 1*0, tarsi 1*05. 
Hab. in Saharse Algeriensis parte boreali. 
Obs. Aflinis Galeridce cristatce , sed statura majore et rostro 
elongato, incurvo distinguenda. 
