'^^''O THE FAUNA OF COREA. 589 



34. HERODiASTORRA(Buch.-Ham.), 



Herodias alba, David et Oust, (nee Linn.) Ois. Chine, p. 439 

 (1877). 



Herodias torra, Salvad. Orn. Pap. e Mol. iii. p. 350 (1882). 

 a. Gensan, August 17th, 1880. 



Some ornithologists will not separate this smaller race of the Great 

 White Egret, which appears to be peculiar to Eastern and Southern 

 Asia, extending to the northern parts of the AnstraHan region. 

 Our specimen is perfectly adult ; the following are its measurements 

 compared with those of an adult $ H. alba from Italy :— 



, ,^ill Middle toe 



(culmen). Wing. Tarsus. (with claw). 



H. torra O'lOO 0-385 0-160 0-105 



H. alba, 2 .. 0-120 0-415 0-174 0-104 



35. Anser albiprons (Scop.). 



Anser albifrons, David et Oust. Ois. Chine, p. 492 (1877). 

 «• 61; b. $? Fusan, February 1881. 



Both perfectly adult, of large size, with the rather big characteristic 

 yellow bill of this species. 



The measurements of both are : — 



r.^ko'^^- '^«t^l <?"7«0 m. ; wing 0-420 m. ; bill 0-050 m. ; tarsus 

 0-ObS m. ; middle toe with claw 0*069 m. 



aaka^'^- "^"^^i ,?'"^0 m. ; wing 0-410 m. ; bill 0045 m. ; tarsus 

 0-066 m. ; middle toe with claw 0-067 m. 

 "We believe the differences are owing to sex. 



36. Cygnus bewicki, Yarrell. 



Gygnus minor, David et Oust. Ois. Chine, p. 494 (1877). 



Cygnus beiuicki, Sclat. P. Z. S. 1880, p. 507. 



a. <3l Fusan, February 1881. 



An adult specimen, which from its size appears to be a male - it 

 agi^es perfectly with two specimens of the same species captured 

 in Italy, and has the same bill with a basal yellow patch not reaching 

 the nares. The following are its dimensions :— 



Wing 0-526 m.; tail 0-143 m. ; bill (culmen) 0-102 m. ; bill 

 (from the gape) 0-104 m. ; tarsus O'lOO m. ; middle toe (with claw) 

 0*142 m. ^ ' 



I 



37. Cygnus davidi, Swinh. (Plate LII.) 



Cygnus {Goscoroba) davidi, Swinh. P.Z.S. 1870, p. 430 (Tientsin) : 

 G. R,. Gray, Hand-1. iii. p. 29, no. 10607 (1871) 



Cygnus davidi, Swinh. P.Z.S. 1871, p. 416; David et Oust. 

 Ois. Chine, p. 494 (1877) ; Sclater, P. Z. S. 1880, p. 507. 



Cijgnus (Koskoroba) davidi. David, N. Arcbiv. Mus. Bull vii 

 Cat. n. 438. 



Proc. Zool. Soc— 1887. No. XXXIX. 39 



