502 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XII. 



(616) Larus brunneicephalus. — The Brown-headed Gull. 

 Hume, No. 980 ; Blanford, No. 1491. 

 A decidedly rare gull in Cachar, though common enough in Syihet 

 on the one side and Manipur on the other. 



Sub-Family Sterninoe. 

 (617) Hydrochelidon hybrida. — The Whiskered Tern. 

 Hume, No. 984 ; Blanford, No. 1496. 

 Very common indeed ; breeds in the larger jheels and waters of 

 Cachar. 



(618) Sterna seena. — The Indian Eiver-Tern. 

 Hume, No. 985 ; Blanford, No. 1503. 

 Very numerous on the larger rivers and open pieces of water during 

 the rains, less so during the cold weather after December. 



(619) S. MELANOGASTBR. — The Black-bellied Tern. 

 Hume, No. 987 ; Blanford, iVo. 1504. 

 A rare bird, much more common in the adjoining district of Syihet. 

 Sub-Family RhT/nchojnnoi. 

 (620) Ehynchops albicollis. — The Skimmer. 

 Hume, No. 994 ; Blanford^ No. 1517. 

 In most years very rare, but in 1897 very numerous and in 1896 

 almost equally so. In these two years my collectors obtained a great 

 number, and they seem to have been distributed freely over the whole 

 of the Surma Valley. 



Order XVII— STEGANOPODES. 

 Family Pelicanid^e. 

 (621) Pelecanus ROSEUt?. — The Eastern White Pelican. 

 Hu7ne, No. 1003 ; Blanford, No. 1520. 

 A very rare visitor as a rule to Cachar, sometimes however appearing 

 in small numbers. 



(622) P. PHILIPPENSIS. — The Spotted-billed Pelican. 

 Hume, No. 1004 ; Blanford, No. 1523. 

 A regular visitor in large, sometimes immense, flocks. 



Family PHALACROCORACIDyE. 

 Sub-Family Phalacrocoracince, 

 (623) Phalacrocorax carbo. — The Large Cormorant. 

 Hume, No. 1005 ; Blanford, No. 1526. 

 Fairly common. 



