95 



GENUS HALOBJLNA. Nasal tube short; lamellae of sides of palate 

 rudimentary. First and second primaries subequal. Tail has twelve 

 rectrices. 



689. H. CCerillea, Gmelin (Procellaria coerulea, Old.), Blue Petrel. 



Lores, cheeks, and under surface white ; upper surface ashy-blue. 

 Total length, 11 in. ; bill, 1'4 in. ; wing, 8 '6 in. ; tail, 3 '6 in. ; 

 tarsus, 1'3 in. ; middle toe, T6 in. ; inner toe, T3 in. 

 Hab. : 4, 5, 6, 9. 



GENUS PRION. Nasal tube short ; lamellae of sides of palate well 

 developed. First primary the longest. Tail has twelve rectrices. 



690. P. YittatUS, Gmelin, Broad-billed Dove-Petrel. 



Under surface white, upper bluish ; bill very wide (0'7 to 0'8 

 in.) ; edges of maxilla distinctly convex ; lamellae distinctly visible 

 when bill is shut. 



Total length, 12 in. ; bill, 1-5 in. ; wing, 7 '6 in. ; tail, central 3'8 

 in., lateral 3'5in. ; tarsus, 1'3 in. ; middle and outer toes, 1-4 in. ; 

 inner toe, 1 '2 in. 



Hab. : 3, 4, 5, 6, 9. 



691. P. talllksi, Gld., Banks Dove-Prion. 



Under surface white ; upper bluish ; bill narrower (0*5 in.) ; 

 edges of maxilla distinctly convex ; lamellae only visible near rictus 

 of closed bill. 



Hab. : 3, 4, 5, 6, 9. 



692. P. deSOlatUS, Gmelin (P. turtur, Smith), Dove-like Prion. 



Under surface white; upper surface blue; bill still narrower; 

 edges of maxilla almost straight ; lamellae invisible. 

 Hab. : 3, 4, 5, 6, 9. 



693. P. ariel, Gld., Fairy Dove-Prion. 



Upper surface blue-grey ; under surface white ; bill much smaller, 

 more compressed, the hook large ; sides of maxilla straight, and the 

 head, &c., paler blue-grey. 

 Hab. : 4, 5, 6. 



FAMILY PELECANOIDIDJE. 



Nostrils distinct, opening upwards on either side of middle of base of 

 culmen ; second primary slightly the longest. 



GENUS PELECANOIDES. Form compact ; wings feeble. 



694. P. urinatrix, Gmelin (Puffinus urinatrix, Gld.), Diving Petrel. 



Throat, flanks, and under wing coverts nearly pure white. 

 Young. Under surface brownish- white. 



Total length, 8 in. ; bill, 0'9 in. ; wing, 4'7 in. ; tail, 1*4 in. ; 

 tarsus, 1 in. ; middle and outer toes, 1 '2 in. ; inner toe, 1 in. 

 Hab. : 4, 5, 6. 



FAMILY DIOMEDEID^E. 



Nostrils lateral, opening forward, separated by the wide culmen. 



GENUS DIOMEDEA. Sides of mandible without longitudinal sulcus 

 (furrow). Tail short, rounded. Base of culminicorn (the horny piece 

 encasing the culmen) joining the proximal end of the dorsal edge 

 of the latericorn. 



695. D. CXlllans, Linn., Great Wandering Albatross. 



Bill very strong ; head white ; interscapular region and middle 

 of back white ; wing coverts dark slaty-black ; smaller coverts 

 nearly white. 



Young. Brown, the face white. 



