SOLAN GANNET. NATATORES. SULA. 459 



length, the radius (or second joint) measuring fully eight 

 inches; and the legs are not placed so far behind as in the 

 Cormorants, so that the horizontal position is preserved in 

 walking. In its affinities it seems to connect the true Peli- 

 cans with the genera Tacliypetes and Phaeton. 



PLATE 86 *. Represents the Adult bird in about three-fifths 



of the natural size. 



Bill bluish-grey, with the tip fading into white. Naked General 

 skin surrounding the eyes greyish- blue. The membrane t j on 

 forming the prolongation of the opening of the bill, and Adult 

 that which extends beneath to the middle of the throat, 

 black. Irides pale-yellow. Crown of the head, occiput, 

 and upper part of the neck, pale sienna-yellow. The 

 rest of the plumage pure white, except the quills and 

 bastard wing, which are black. Streak down the front 

 of the tarsus, and along the upper part of the toes, 

 bluish-green. Membranes of the toes blackish-grey. 

 Claws greyish- white, the inner edge of the middle one 

 being dilated and toothed. 



PLATE 87. The young of the year, about three-fourths of 

 the natural size (. 



Bill blackish-grey, tinged with brown. Irides pale clove- Young. 

 brown. Ground colour of the head, neck, and whole First y ear - 

 of the upper plumage blackish-grey, inclining to clove- 

 brown, each feather being tipped with a triangular spot 

 of white. Breast and abdomen white ; the feathers being 

 edged with greyish-black. Quills and tail greyish-black, 

 with the shafts of the tail-feathers white. Legs and 

 toes deep-grey. 



Head, and greater part of the neck, white, more or less Second 



vear. 



j- TEMMINCK has committed an error in describing the plumage of the 

 first as that belonging to the bird of the second year, and vice versa, in which 

 he has been copied by Mr STEPHENS and Dr FLEMING. 



