336 Mr. Blyth's Commentary 



13G. Tanysiptera sylvia, Gould. H. B. A. i. p. 137. 



Only one seen. 



137. Sphenceacus galactodes (Temminck). H. B. A. i. 

 p. 399. 



138. CisTicoLA isura, Gould. H. B. A. i. p. 352. 



I have no doubt, when Mr. Rainbird has time to pay more 

 attention to the less gaudy birds, many more of our New South 

 Wales species will be found in Queensland. 



XXIX. — The Ornithology of India. — A Commentary on Dr. 

 Jerdon's 'Birds of India.' By Edward Blyth, late 

 Curator of the Museum of the Asiatic Society at Calcutta, 

 Hon. Mem. As. Soc. 



[Continued from p. 258.] 



82. HiRUNDO RUSTiCA, L. ; H. gutturalis, Scop.; H.panay- 

 ana, Gm. ; H. jewan, Sykes. 



The average of adult Swallows from the Indian region and 

 China are smaller than the average of European examples, to 

 the extent sometimes of an inch in length of wing ; but some 

 Indian are undistinguishable from European specimens. Thus 

 Dr. Jerdon remarks, " On carefully comparing specimens from 

 England and Algiers in the Museum at Calcutta with Indian 

 specimens from various parts of the country, I can detect no 

 difference." Mr. Gould has lately described a H. fretensis 

 (Handb. B. Austral, i. p. 110) from North Australia and Java; 

 and this seems to be the same Swallow that Dr. Jerdon indicates 

 as exemplified by one specimen from Java and another from 

 Southern India (p. 157), in which case H. frenata has to be 

 added to the ' Fauna Indica.' The H. tytleri, Jerdon (Appen- 

 dix, p. 870), comes very near to H. cahirica of Palestine and 

 Egypt, but is rather smaller and has much less of the black 

 gorget. It may be said to hold that relationship to H. guttu- 

 ralis which H. cahirica does to H. rustica ; and H. hyperythra of 

 Ceylon is an analogous rufous-bellied race of H. erythropygia. 



83. HiRUNDO DOMICOLA. 



Mr. Mottlcy obtained it in Borneo (P. Z. S. 1863, p. 217). 



