ANSERES (Continued) 



Species 



Chromosome 17'unber 

 2n n 



Remarks 



Observer 



References 



Spatula clypeata 



Tadorna rutila 



80s 



ij4-46m 



Yamashina '50 Auk (Bull. Am. 

 Ornith. Union), 

 July, '50. 



Sokolowskaja 

 »i*0 



Trudy Inst. Genet. 

 13. 



STEGANOPODES 



Species 



Chromosome Number 

 2n n 



Remarks 



Observer 



References 



Phalacrocoracidae 



Phalacrocorax carbo 

 hanedae 



70s 



35^(D 



Oguma '37 



J.E.S. Hokkaido I. 

 U. Ser. VI, 5. 



TUBINAEBS 



Species 



Chrome some Number 

 2n n 



Remarks 



Observer 



References 



Procellariidae 



Oceanodroma leucorrhoa 74s, 73© 37o\l) X-Xo\X-0d; 

 leucorrhoa X=r_ 



Oguma '37, %{ *2 J.E.S. Hokkaido 

 I.U. Ser. VI, 5i 

 Kaibogaku Zassi 

 20. 



PYGOPCDES 



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