Order ANSEKES.j [Fam. PROCELLAPJIDiE. 



PEION VITTATTIS. 



(BROAD-BILLED DOVE PETREL.) 



Broad-Ulled Petrel, Lath. Gen. Syn. iii. pt. 2, p. 414 (1785). 



Procellaria vittata, Gm. Syst. Nat. i. p. 560 (1788, ex Lath.). 



Procellaria forsteri, Lath. Ind. Orn. ii. p. 827 (1790). 



Prion vittatus, Lacep. Mem. de l'lnst. 1800, p. 514. 



Pachjptila vittata, Illiger, Prodr. p. 275 (1811). 



Procellaria latirostris, Bonn, et Vieill. Enc. Meth. i. p. 81 (1823). 



Pachyptila forsteri, Swains. Classif. of B. ii. p. 374 (1837). 



Ad. similis P. banksii, sed saturatior : pileo et facie laterali nigricanti-cinereis : tectricibus alarum brunneo 

 lavatis : statura majore et rostro conspicue latiore facile distinguendus. 



Adult. Similar to P. banksi, but darker, tbe crown of tbe head, the sides of the face, and the ear-coverts 

 being blackish grey, and the wing-coverts shaded with brown : distinguished by its larger size and 

 much broader bill. Total length 12"5 inches; wing, from flexure, 8 - 25 ; tail 3"5 ; bill, following the 

 curvature of upper mandible V5, greatest width at the base - 8, from gape to extremity of lower 

 mandible L7; tarsus 12; middle toe and claw 1*6. 



Although closely resembling the preceding species in the colours of the plumage, this Prion 

 may be readily distinguished by the peculiar form of its bill, which is much dilated at the base, 

 and very conspicuously pectinated along the edges. I have taken the above measurements from 

 a fine specimen obtained by Mr. Henry Travers on Pitt's Island. 



Two eggs of this species, collected by Macgillivray on the island of St. Paul, in the Indian 

 Ocean, are pure white, and measure 2 inches in length by 1*5 in breadth. 



