BIRDS OF TENASSERIM. 493 



989.— Sterna bergii, LicU. (3). S. F., I.. 283 : IV., 



470; V., 300. 



Mergui ; Bopyin. 



Rare ; only observed along the coast from Mergui southwards. 



990.— Sterna media, Horsf. S. F., V., 301. 



Blytb gives this species from Tenasserim, where, of course, 

 it must occur, though we have not yet procured it there. 



991.— Sterna sumatrana, Baff. (l). 



Off the mouth, of the Laynah Creek. 



A single specimen shot out of a flock of S. dougalli. Davi- 

 son believes he has often seen this species off the Moscows and 

 amongst the islands of the Archipelago. 



992. — Sterna ancethetus, Scop. Descr, S. F., IV., 475. 



Davison thinks he has seen this in the Mergui Archipelao-o. 



993. — Anous stolidus, Lin. Descr. S. F., IV., 478. 



Numbers of this species have been seen by Davison when 

 passing backwards and forwards through the Mergui Archipela- 

 go in steamers, but never under circumstances enabling him 

 to procure specimens. 



995.— Rhynchops albicollis, Swains. (5). 



(Tonghoo, Rams.) Sal ween R. % Sittang R. 



Only observed in these two rivers ; nowhere else. Davison 

 has been up and down the Tavoy river about 50 times, alike 

 in the cold season and rains, and never saw one there. Mason, 

 however, says that it is frequently seen in the Tavoy river. 



996.— Phseton indicus, Hume. Descr. S. F., I., 286 ; 

 IV., 81 ; V., 302. 

 Davison met with this species almost opposite the southern- 

 most point of Tenasserim, and again off Cape Negrais, so that, 

 though not actually procured within our limits, there is no doubt 

 but that the species must be included in the Tenasserim list. 



998.— Sula australis, Steph. Descr, S. F., IV., 483 ; 

 V., 318. 



Very numerous between Penang and Singapore, where Davi- 

 son procured a specimen, but seen by him continually the whole 



