1871.] MR. R. SWINHOE ON THE BIRDS OF CHINA. 421 



656. Larus crassirostris, Vieill. ; Ibis, 1863, p. 428 ; P. Z. S. 

 1863, p. 326. 



Larus melanurus, T. & S. Faun. Jap. ; Ibis, 1860, p. 133, 1861, 

 pp. 261, 345. 



Larus fuscus, Ibis, 1860, p. 68. 



A common winter Gull on the South-China coast. 



657. Larus cachinnans, Pall. ; Ibis, 1863, p. 428, 1870, p. 366; 

 P. Z. S. 1863, p. 327. 



Larus argentatus, var. cachinnans, V. Schrenck, Reise Amur., 

 Vog. p. 504. 



Larus borealis, Bruch nee Brandt. 



Larus argentatus, Ibis, 1861, p. 345. 



Chiua coast in winter. Rather larger than L. argentatus, with a 

 deeper-coloured mantle. 



658. Larus occidentalis, Aud. ; P. Z. S. 1863, p. 326. 

 Larus borealis, Brandt. 



A winter visitant to the China coast. Like L. argentatus, but of 

 very large size. 



659. Chroicocephalus brunneicephalus, Jerdon. 

 Received at the Paris Museum from Pekin {J. Verreaux). 



660. Chroicocephalus ridibundus (L.); Ibis, 1863, p. 428. 

 Chroicocephalus capistratus, P. Z. S. 1863, p. 327. 



Macao ; Anioy. Rare winter visitant to South China. 



661. Chroicocephalus saundersi, Swiuhoe. See anted, 

 p. 273, PL XXII. 



662. Sylochelidon caspia (Pall,) ; P. Z. S. 1863, p. 328. 



Sterna caspia, Pall. ; Ibis, 1860, p. 68, 1861, p. 345, 1863, p. 430, 

 1870, p. 366. 

 Sterna melanotis, Swainson (winter dress). 

 China generally. 



663. Hydrochelidon hybrida (Pall.). 



Hydrochelidon indica (Steph.) ; Ibis, 1863, p. 428 ; P. Z. S. 1863, 

 p. 328. 



Sterna leucopareia, Natterer. 

 Formosa. Not observed yet in China. 



664. Hydrochelidon nigra (L.) ; Ibis, 1863, p. 97; P. Z.S. 

 1863, p. 328. 



Hydrochelidon javanica, Ibis, 1860, p. 68, 1861, p. 345. 

 Throughout China. 



