BIRDS OF BERMUDA. 277 



advisable to introduce it formally into my list. Moreover, to judge from 

 Dr. O. Finsch's remarks on P. ohscuriis in bis paper on tlie Birds of 

 Ninafou Island, in tbo Pacific (P. Z. S., 1877, Part IV, pp. 786, 787), it 

 would appear "that tbe black or white of the under tail-feathers forms 

 no specific character, and even less so the more or less extent of the 

 black along the rectal line." 



Mr. Bartram informs mo "The Black-vented Shearwater is 15 inches 

 long; wing, 9; tail, 3^; bill, l^(not measuring along the curve) ; tarsus, 

 IJ; middle toe and claw, If; under parts white; upper parts black; 

 tail black ; sides of the check below the eyes black ; crissum white, but 

 a black bunch of feathers on each side, lapping over and meeting across 

 the vent; in other respects it is made like the Cahow, only larger; it 

 does not exactly answer to Coues' description, but the black below the 

 eyes is the distinguishing mark, and being a female may account for the 

 difierence. The e^g is white and measures 2f by 1^ inches." 



To judge from the size of the bird and its egg, I should myself be in- 

 clined to consider this specimen a Manx Shearwater (P. anglorum), 

 which has been already shown to breed in Bermuda by Mr. Bartram, 

 but I have no means of deciding the question, and am compelled to 

 leave it in its present unsatisfactory state. 



Order PYGOPODES. 

 Family PODICIPID^. 



Genus Podiceps, Lath. 

 184. Podiceps cornutus. Lath. Horned Grebe. 



Colymhits auritus, Liuu. 



Cohjmhus duplicatuH, Miill. 



Colymbus cornutus, Gm., Naiim. 



Podiceps cornutus, Latb., Teuim., Boie, Steph., Keys. &, Bias., Gray, ScM., 



Bp., Sw. & Reich., Nutt., Aud., Lawr., Coues, Finsch, Snow, and of authors 



generally. 

 Dytes cornutus, Kaup. 

 Colymbus ohscurus, Gm. 

 Podiceps obseurus, Lath., Leach. 

 Colymbus caspicus, S. G. Gm., Gm. 

 Podiceps caspicus, Lath. 

 Colymbus nif/ricans, Scop. 

 Podiceps arcticus, Boie. 

 Podiceps sclavus, Bp. 



Length, 14; wing, 5.75; tarsus, 1.75; bill, .90. 



Rab. — North America; Europe; Asia. (Coues.) 



One shot bj'^ Dr. Cole, on the 24th of November, 1846, is now in th& 



