6 Mr. P. Suslikiu on the 



of a Goose belonging to the group of Anser segetum. The 

 whole series was obtained during the autumnal migration 

 from the 4th to the 16th of October, eight specimens being 

 killed by myself and the ninth by my assistant, from whom 

 I received it immediately after it was procured, so that I 

 had the good fortune to be able to examine the natural 

 coloration both of the bill and feet of all the birds. Thus 

 I found that but one specimen of the series was a true 

 A. segetum, with the feet and the middle portion of the bill 

 deep orange, these parts in the rest of the eight specimens 

 being flesh-coloured, with more pronounced rosy in some of 

 the more vigorous birds. Individual variations in the deve- 

 lopment of the pink middle portion of the bill there are in 

 the new species just as in A. segetum, but as regards the 

 coloration of plumage the eight specimens of the former are 

 similar to each other. 



The pink band round the median part of the beak and the 

 pink flesh-colour of the feet gave me good reasons for com- 

 paring my specimens with A. brachyrhynchus, Baill. ; and I 

 am very much obliged to Mr. Pleske, Director of the Zoolo- 

 gical Museum of the Academy in St. Petersburg, for kindly 

 sending me two specimens of the latter (March, 1888, 

 Pomerania, ? ad., and December 1894, island of Pohr, 

 North Schleswig, S ji"-) ^oi' comparison. I found a series 

 of A. segetum from different localities in the collection of 

 Prof. M. Mcnzbier in Moscow, and I am therefore able to 

 make a full comparison of ray new Goose with its nearest 

 allies. The results of this comparison are as follows : — 



The new Goose is different both from A. hrachyrhynchus 

 and A. segetum, but is nearer to the latter in dimensions and 

 coloration, having the following measurements of the parts : — 

 Length 29"-4-33", expanse 60"-65"-6, wing 18"-5-19"-5, 

 culmen 2"-46-2"-7, tarsus 2"-95-3"-l. 



The extent of variation in the dimensions of A. segetum is 

 the same; but A. hrachyrhynchus is a much smaller bird, 

 with an absolutely and relatively shorter bill (wing lG"-lG"-5, 

 culmen 1'''8, tarsus 2"*75-2""8). The line of demarcation 

 between the feathered front and bill in the new Goose 



