42 



modern authors, and to tlie expediency of subdividiiig the group 

 according to the niodifications of form exhibited in the vvings and 

 tail, proposed the foUovving characters as separating the two ge- 

 nera. 



Lanius. 



Itostrum longitudine mediocre, robustum, compressum, ad basin 

 rectum, ad apicem curvatum, mandibulae superioris tomiis fortiter 

 ennarginatis, dentem conspicuum cxhibentibus ; naribus basalibus, 

 lateralibus, fere rotundatis, membrana partira tectis ; ridu setis 

 rigidis munito. 



Pedes mediocres ; digUis liberis ; acrotarsiis late scutellatis. 



Al(B subacuminatae, subbreves ; remige prima brevissima, tertiž, 

 longissima, caeteris gradatim decrescentibus. 



Cauda brevis, aeąualis aut subrotundata. 



Typus genericus, Lanius CoUurio, Linn. 



CoLLURIO. 



Rostrum pedesąue ut in genere Laiiio. 



Alce subrotundatae, breves; remige prima brevi, secundd seąuen- 

 tibus paullo breviore, tertia quarta et quinta ferė aeąualibus lon- 

 gissimis. 



Cauda elongata, gradata. 



Typus genericus, 'Lanius Excuhitor, Linn. 



To the latter group the following Himalayan species belong. 

 CoLLURio Hardwickii. Coli. capitis parte anteriore, striga per 

 oculos ad collum extendente, alis, cauddque nigris ; capitis vertice, 

 corpore iiifra, macula medid alarum, caudce tectricibus, rectricibus 

 duabus lateralibus, cceterarumcjuc, guatuor mediis exceptis, basi 

 apicecue albis ; occipite, nuchd, dorsoque imo albescenti-gr išeis ; 

 dorso medio lateribusque abdorninisjerrugiiieis. 

 Rostrum pedesąue nigri. Caput superne albo nigroque colore in 

 duas ferė partes transversim divisum. Longitudo corporis, 8 ; alce 

 a carpo ad remigem 3tiam, 3-J-; rostri, 4; tarsi, į; caudce, 34. 

 Bay-backed Shrike, Lath. ? Gen. Hist. vol. \\. p. 13. sp. 6. 

 This bird appears to be the šame as that referred to in Dr. La- 

 tham's worli, the description of wbich is taken from one of the draw- 

 ings of General Hardbvicke, to whom the species is inscribed. 

 CoLLURio KRYTHRONOTUS. Coll. strigu Jronlali per oculos ad 

 medium colli extendente, alis, rectricibusque guatuor mediis ni- 

 gris ; capite supra, nuchn, dorso superiori, rectricibusąue latera- 

 libus pallide cinereis ; corpore infra, alarum macula mcdiu, remi- 

 gum interiorum apicibus, 7-ectricum lateralium marginibus omni- 

 umque apicibus, albis ; scapularibus, dorso imo, abdomiuisgue la- 

 teribiisjerrugineis. 

 Rostrum pedesąue nigri, iliius mandibulž inferiori ad basin flaves- 

 centi. Striga per oculos nigra, supra graciliter albo marginata. 

 Tectrices alarum inferiores albae. Longitudo corporis, 10^^ ; alte a 

 carpo ad apicem remigis Stiae, 34; rostri, t ; tarsi, 1^; caudce, 4-f. 

 This bird was observed to bear a great resemblance to the de- 



