NISUS ALBIVENTRIS. 59 



Nisus rujltorques, Schl. Mus. P.-B., Rapaces; id. Notes 

 Leyd. Mus. 1879, p. 2. 



The only specimen obtained, a male in a very interest- 

 ing transitional stage of plumage, shows, intermixed with 

 the plumage of the young birds, exactly the same colors 

 as our adult female from Little Ké, except the upper sur- 

 face, which is somewhat darker gray in the Timor-Laut 

 specimen. The tibiae and under wing- coverts , said by Sal- 

 vadori to be pure white in the adult bird from Timor-Laut 

 and used by this author as a reason to distinguish this 

 latter from the Ké specimens , are just as pure white in 

 our adult female from Ké. The difference of the Ké- and 

 Timor-Laut specimens would therefore only be based upon 

 the very slight difference in the color of the upper surface 

 in the males, while females from both localities cannot be 

 distinguished at all , reason enough to consider the Timor- 

 Laut specimens to be nothing but JVisus alhiventris. 



Measurements of the male: wing 190 mm., tail 150, 

 tarsus 54. 



Cacatua Goffini. 



Loplwchroa Goffini^ Finsch, Tijdschr, v. d. Dierk. 1863, 

 p. XXIIL 



Cacatua Gofiini, Schl. de Dierentuin, 1864, p. 82. 



Plictolophus Goffini , Finsch , Papag. I. p. 308. 



Cacatua sanguinea, Schl. (nee Gould) Mus. P.-B,, Psitt. 

 1864, p. 144; id. Revue, 1874, p. 67; Sclater, P. Z. S. 

 1883, pp. 197, 200; Forbes, P. Z. S. 1884, p. 431. 



One specimen (sexe not mentioned) exactly similar to the 

 specimen of C. sanguinea in the Leyden Museum , which is 

 the type of Plictolophus Goffini , Finsch. There must be re- 

 membered , however , that in the type of P. Goffini the red 

 on the lores and front is not wanting, as Dr. Finsch says 

 in his description, and that the red on the basal parts of 

 the feathers of the cheeks is so strongly pronounced , that 

 it gives them a somewhat » blood-stained" appearance. The 

 only essential difference from C. sanguinea Gould, upon 

 Notes from the Leyden ]Museum, Vol. "VIII. 



