95 



Gexts— HALOB^EXA.— Nasal tube short ; lamellse of sides of palate 

 riulimeutary. First and second primaries subequal. Tail has twelve 

 rectrices. 



689. H. ecerulea. Gmelln (Procellaria ccerulea, Gld ), Bine Petrel. 



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

 Total length, 11 in. ; bill, 1-4 in. ; wing, 8 6 in ; tail, 36 in. ; 

 tarsus, 1 3 in. ; middle toe, 1 6 in. ; inner toe, 1 S 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. Tittatns. Gmelin, Broad-billed Dove-Petrel. 



Under surface white, upper bluish ; bill very wide (O'T to O'S 

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

 when bill is shut. 



Total length, 12 in. ; bill, lo in. ; wing, 76 in. ; tail, central 38 

 in., lateral 35 in. ; tarsus, IS in. ; middle and outer toes, 14 in : 

 inner toe, 1 "2 in. 



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



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



Under siirface white ; upper bluish ; bill narrower (O'o in.) ; 

 ediies of maxilla distinctly convex ; lamella.- only visible near rictus 

 of closed bill. 



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



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



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

 edges of maxilla almost straight ; lamellae in\Tsible. 

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



693. P. ariel, Gld., Fairy Dove-Pri.m. 



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— PELECANOIDTD^. 



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

 culmen ; second primary slightly the longest. 



Gexus— PELECANOIDE.S.— Form compact ; wings feeble. 



694. P, Urinatrix. Gmelin (Pufiinus urinatrix, Gld.), Diving Petrel. 



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

 Young. — Under surface brownish-white. 



Total length, 8 in. ; biU, 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^. 



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



Qe>;i;s DIOMEDEA.— Sidcs of mandible without longitudinal sulcus 



(furrow) Tail short, rounded. Base of culminicom (the homy piece 

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

 of the latericom. 



695. D. exulans, 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. 



