160 Recently published Ornithological Works. [Ibis^ 



Gyldenstolpe on the heel-pads of Birds. 



[Notes on the heel-pads in certain families of Birds. By Nils 

 Gj-ldenstolpe, Ark. f. Zool. Stockho'in, vol. xi. no. 12, 1917, pp. 1-15 ; 

 16 figs.] 



As is well kaovvn, some young birds have a thickened heel-* 

 pad on the proximal eud of the tarso-metatarsus. Dr. Giiuther 

 first called attention to tliis structure in the Wryneck in 

 ' The Ibis ' for 1890 (p. 411). Other writers have described 

 similar structures in the case of other birds^ and in this 

 short paper Count Gyldenstolpe has collected together a short 

 list of those species in which he has found this peculiarity. 

 As would naturally be expected, the heel-pads ai^e generally 

 found in those birds which breed in holes in trees or on the 

 ground, as the pads assist the young birds to move about. 

 In some groups, such as the Toucans, Barbets, and some 

 of the Woodpeckers, the pads are furnished with pointed 

 tubercles which no doubt enable the young bird to obtain 

 a greater leverage when moving about. In some others, 

 such as the Rollers, Hoopoes, and Bee-eaters, the edges of 

 the scales covering the pads are raised up and roughened. 

 Many of these cases are described and figured by Count 

 Gyldenstolpe in his interesting communication 



Gyldenstolpe on Malay Birds, 



[On Birds and Mammals from the Malay Peninsula. By Nila 

 Gyldenstolpe. Ark. f, Zool. Stockholm, vol. x. no. 26, 1917, pp. 1-31.] 



This paper contains an account of two small collections of 

 birds made by Count Gyklenstolpe's Dyak collector in the 

 Malay Peninsula. The first, consisting of 44 species, was 

 formed at Bukit Tangga, a mountain station at about 

 1300 feet elevation, in the State of Negri Sembilan. It 

 contained no novelties or anything of special interest. 

 The second collection, a rather larger one with represen- 

 tatives of 90 species, was formed in the low country near the 

 mouth of the Perak river, and is now in the Museum at 

 Stockholm. One species, Locustella certhiola, is recorded 

 for the first time in the Malay Peninsula. It is, as would 



