472 PBOCELLARIID^ PBIOFINUS 



Genus II. PRIOFINUS. 



Type. 

 Priofinus, Hombr. A Jacq. Compt. liend. xviii, p. 355 



(1844) ..................................................... P. cinereus. 



This genus closely resembles Puffinus, differing only in the shape 

 of the nasal tubes ; these are somewhat higher and slightly swollen 

 at the orifices, and open forwards and slightly inwards but not 

 upwards, so that from above they are hardly visible. 



One species only is assigned to this genus ; it is found through- 

 out the Southern Ocean. 





788. Priofinus cinereus. Great Grey Petrel. 



Procellaria cinerea, Gmel. Syst. Nat. i, p. 563 (1788) ; Sperling, Ibis. 



1868, p. 293 ; Beiclienow, Vog. Afr. i, p. 25 (1900). 

 Procellaria haesitata (nee Kulil], Gould, B. Austr. vii, pi. 47 (1848); 



Button, Ibis, 1869, p. 352. 

 Adamastor cinereus, Sounders, P. Z. S. 1880, p. 164; Green, Ocean 



Birds, p. 27 (1887). 

 Priofinus cinereus, Salvin, Cat. B. M. xxv, p. 390 (1896) ; Slidley, 



B. Afr. i, p. 167 (1896) ; Slia^e, Southern Cross Expert, p. 142 



(1902). 



FIG. 146. Head of Priofinus cinereus. x | 



Description. Adult. Above French grey, darker on the head, 

 wings and tail ; feathers of the back and rump with dark brown 

 shaft-marks ; below white ; the sides of the face and neck pale grey ; 



