ORNITHOLOGY GALLINACE^E. 79 



gentium, apicalis reliquis paulo longior. Pennee hypochondriorum sub- 

 elongate, plus, minusve acuminatse. Cauda e peuuis 1S-24 composita. 

 Large species, inhabiting lofty mountains on the border of the perpetual 

 snow. 



Spec. 1. Perdix altaica, Gebl. (P. caucasica, Eversm.). Cauda rectricibus 

 22 vel 24 medio cincreis, apice uigris composita. Niicha cinerea, posticc 

 fascia atra terininata. Pectoris superior pars pallicle ciuerea, albo nigroque 

 maculata, inferior cum abdominis anteriore parte alba. Entire length 23", 10'". 

 Inhabits the highest Alps of the Altai. 



Spec. 2. Perdix caucasica, Brandt, (Tetrao ccmcasica, Pall., Chourtha 

 alpina, Motch.). Cauda e rectricibus IS, basi cinereis, iude a medio nigris, 

 apice ferrugineis, composita. N-ucliee inferior pars, albido uigroque subtenere 

 uudulata. Pectoris superior pars albido, nigroque transvcrsim fasciolata, 

 inferior pars cum abdomiue nigricante-cinerea, pallicle ferrugineo striata et 

 tenuissime punctata et fasciolata. Entire length 22". Inhabits the highest 

 points of the Caucasus. 



? Spec. 2. Perdix Nigelli (Lopliopliorus Nigelli, Jard., Tetraogallus Nigelli, 

 Gray). Not as yet certainly established, at all events much resembling 

 P. caucasica, so that Jardine's plate 76, may be a young female, whilst 

 pi. ] 41, and that of Gray, may represent another species. 



With respect to this point, G. R. Gray now gives an explanation, thus 

 completing the work of Brandt, (Ann. Nat. Hist, xi, p. 523.) He remarks, 

 that a living specimen brought from the north of Persia corresponds with 

 Jardine and Sclby's plate 76, and that both are in all probability identical 

 with Tetrao caucasica, Pall. He further shows that the plate 141 (ib.), and 

 the figure given by J. E. Gray, under the name of Tetraogallus Nigelli, in 

 the ' Ind. Zool.' belong to another species, of which he had seen many 

 specimens from the Himalaya mountains, and which is distinguished by the 

 silky white neck and breast ; by a chesnut-brown line, running downwards, 

 and in part encircling the base of the neck, and by the breast being variegated 

 with black in front. Gray proposes to name tlu's species Tetraogallus 

 himalayensis, which is unnecessary, as it can retain the name of Perdix 

 ]\ igclU. 



Brandt rejects the genus Tetraogallus, since it presents no marked affinity 

 either with the common Eowl or Grouse. With respect to Lvphophorw he 

 remarks, that it exhibits a great analogy with Perdix. 



Very nearly allied to, if not actually identical with, Perdix griseogulans, is 

 Caccabis Bonhami, from the mountains of Persia. (Gray, in the Ann. Nat. 

 Hist, xi, p. 372.) 



Of Ids Perdix griseogidaris, Brandt (1. c. p. 365,) gives the following 

 diagnosis : Halitus fere, P. Heyi. Rostrum minus robustum. Dorsum, 

 pectus et abdomen magis cinerascentia et ciuereo irrorata. Tectrices alarum 



