( IP-^ ) 



Solialow, and Hellmayr, Tint I have convinced myself that the two snlispecies are very 

 easily distingnishalile. That occasionally in Europe west of the Ural Jlonntiihis 

 specimens occur with greyish heads, while per contra east of the Ural sometimes 

 white-headed birds have been found, is a fact quite consistent with my contention, 

 because if there never occurred any such intermediate specimens these two liirds 

 could be considered distinct species. 1 only ask that they be recognised for what 

 they certainly are — two very easily distinguished snlisjiecii's. 



I'liriift ('iinnnn ryiimis Pall., which is certainly the Eur(i|i(':ni bird, is disf iiigiiisjii'd 

 by its pure white head and hindneck, larger size ami less grey on inner urli- ..f 

 lateral rectriees. 



Pinna ei/aviis tianscliaiticii!! Severtz. is the more eastern race, and our seven 

 Issykkul birds are all exactly alike and distinguished by smaller size, the head 

 bluish grey, like the rump and upper tail-coverts, and the outer rectriees have the 

 grey on the inner webs more extended. 



I have besides examined of this form ten other specimens from Tni-kestan, 

 Kara Irtisch, and Amnrland. A specimen from thr hitter ]ilaee shows a whiter 

 crown than the remaining sixteen. 



3S. Parus atriceps bocchariensis Uieht. 

 Two specimens March. 



30. Parus songarus Severtz. 



Six specimens December and February. (Jadow united as a synonym with lliis 

 bird P. affinis (Prjev.), but this is entirely erroneous, as the latter has the head 

 dull russet brown, while the other bird has a deep black head. 



40. Parus ater rufipectus Severtz. 

 5 ? ? .Tanuary. 



41. Certhia familiaris Uinn. 



1 (J January. Tin's s|iecimen is apjiarently (|niti' indistingnishablr from S\veili~h 

 specimens. 



42. Lanius isabellinus Eluenb. 



~ Jc?, 2 ? ? ad. 1 ? med. March, .\i)ril. 1 havi' named these birds as above, 

 but from comparison with a number of birds collected by Zarndny and others in 

 (Central Asia, I am forced to conclude that /.. isabelliiiKS, L. pliocnicnrnidftt Severtz., 

 and L. specidiger-KS Taczan. are colour variations of one s]iecies, and that probably 

 L. cristafiis Linn, and L. siipereiliosus Lath, may only be treat eil as subspecies of 

 the same bird, which in that case would be divided into the three snbsjieeies : — 

 Lintiiii crixlotiis ci/stiifiix, 



„ crisiafits .vijiprciliosus, 



,, criatafiis isa/x'l/i/ius : 

 but although I have about '.id sjiecimens of these birds in the Tring Museum, I 

 have not enough killed ii] the breeding-places to writi' detinifi'ly and tinally on thi' 

 subject at present. 



