308 REMARKS ON THE GENUS SULA. 



" Total length, 29 inches ; bill, 5 ; wing, 16*5 ; tail, 8*5 ; tarsi, 

 2-25." 



Bonaparte {cyanops), Consp. II, 166, 1850 (including per- 

 sonata, Gould, but not dadylatra) : — 



11 Smaller ; white ; quills and tail blackish chocolate; 16 tail 

 feathers; face blackish blue ; bill huge, yellow ; feet plumbeous.'" 



The original descriptiou of melanops from the Red Sea by 

 Hartlaub and Heugliu himself) does not exactly corre- 

 spond with Heuglin's later one first quoted, of cyanops from the 

 same locality, though he accepts the identity of the species. It 

 occurs, Ibis, 1859, '351 : — 



" White ; slightly yellowish ; quills, scapulars, and the outer 

 wing coverts and tail feathers black, all at their bases whitish 

 or pure white ; the shafts white below ; the bend of the wing 

 white ; bill greenish yellow, black basally, bare space round 

 the eyes, and the roundly truncated bare throat patch black ; 

 irides reddish yellow; feet bluish plumbeous; the webs dusk- 

 ier ; nails horny black, whitish at the tips. L., 296 — 30*7 ; 

 B. fr. g., 4-92 ; at fr., 4'12 ; W., 17-52— 18*33 ; tail, 8-77 ; tarsus, 

 2-3 ; mid toe and claw, 4-11— 43." 



Schlegel, Mus. Pays. Bas. Pelecani, 39, July 1863 (who 

 includes dactylatra with a query) : — 



" Plumage absolutely like that of S. capensis {i.e., white, th6 tail 

 feathers, all the quills and greater wing coverts black) ; feet 

 greenish ; bill pale yellow ; naked skin of head pale black, 

 verging on violet or blue. 



"Wing 15-7— 15-43; tail, 7-12—803; tarsus, 1-85—1-94; 

 4-— 4-2" 



Captain Shelley, B. of Egypt, 294, gives a description of a 

 Gannet which he identifies as cyanops : — 



rt Naked skin on the face and pouch slate colour ; quills, great- 

 er wing coverts, and tail dark brown ; beak yellow; legs slatey 

 grey ; irides yellow/' 



Finsch and Hartlaub {cyanops). Oru. Central Polynesiens, 252, 

 in which they include personata and melanops, and with a (?) dac- 

 tylactra : — 



u White ; greater wing coverts, all the quills, the lateral tail 

 feathers, and the tips of the central ones intense dusky 

 (fuscis) ; bill pale greenish yellow ; naked portions of face 

 and chin dull bluish; feet greenish; irides yellow. 



" L. 31-8 ; B., 4-2; W., 15 35— 1752 ; T. 6-57—7-67 ; tarsus, 

 1-82—1-93. 



" Old. — Uniform white, somewhat yellowish; the quills of 

 the first and second order ; their coverts and scapulars, together 

 with the tail feathers brownish black ; the quills white at 

 their bases on the inner webs. 



