1. PTJFFINUS. 381 



smaller, upper surface darker, nearly black ; black of the sides of 

 the head extendiug below the eye to a line with the mouth, the 

 edge not sharply defined but blended by small dark spots ; flanks 

 and axillaries pure white; under tail-coverts black. Total length 

 about 12-5 inches, wing 9-2, tail 3' 15, bill from gape 1-5, 

 tarsus 1"S, middle and outer toes with claw 1"9, inner toe 1"6. 



Huh. Clarion Island, coast of Mexico. 



One of the typical specimens of this distinct species has been 

 kindly lent me by the authorities of the United States National 

 Museum. Though allied to P. o^nsthomdas, it seems to be separable 

 by several characters. 



12. PiiflBnus gavia. 



Procellaria gavia, Furst. Descr. An. p. 148 (1844) ; Grai/, Voij. 



Ereb. Sf Terror, i. p. 18 (1846) ; id. Cat. B. Trop. M. Pa'c. p. 56 



(1859); id. Ibis, 1862, p. 246; Finsch, J. f. Orn. 1870, p. 373; 



Huttun, Ibis, 1872, p. 83, 1874, p. 42. 

 ^Estrelata gavia, Cones, Pr. Ac. Phil. 1866, pp. 154, 171; Giffl. ^■ 



Salvad. Ibis, 1869, p. 56; Lrtyard, Ibis, 1878, p. 264. 

 Puffinus gavia, Hiifton, Ibis, 1867, p. 189 ; id. Cat. Birds N. Z. p. 45 



(1871) ; BuUer, Birds N. Zeal. p. 318 (1873) ; id. Ibis, 1874, p. 120 ; 



id. Birds N. Zeal. ed. 2, ii. p. 236 (1888) ; id. Trans. N. Z. Inst. 



xxiii. p. 42 (1891); id. op. cit. xxiv. p. 86(1892); id. op. cit. 



XXV. p. 80 (1893) ; id. op. cit. xxvii. p. 124 (1895) ; Fiyisch, J. f. 



Orn. 1874, p. 208 ; Reischek, Trans. N. Zeal. Inst, xviii. p. 93 



(1886); Sandoffer, Travis. N. Z. hist. xxii. p. 289 (1889) ; Salv. 



Ibis, 1888, p. 356 ; id. P. Z. S. 1891, p. 627 ; Wiglesicorth, Abh. 



k. Zool. Mus. Dresden, 1892, no. 6, p. 81. 

 Pufhuus opisthouielas, Finsch, J.f. Orn. 1870, p. 371. 



Adult. Upper surface slaty-black, nearly uniform ; under surface, 

 including the whole of the under tail-coverts, pure white ; .sides of 

 the head and neck mottled with grey, the region below the eye and 

 the lores being dark ; under wing-coverts w^hite to the edge of the 

 wing, axillaries dusky, whiter at the base and the tips white, quills 

 dark throughout : bill dark horn-colour ; tarsi inwardly yellow, 

 outwardly dark, outer toe dark, the rest yellow. Total length 

 about 12 inches, wing 8 ; tail, central rectrices 2-4, lateral rectrices 

 2-3; bill 19, tarsus 1'7, middle toe 1*8, outer toe a trifle shorter, 

 inner toe 1"5. 



Hah. New Zealand and Australian Seas. 



a. Ad. sk. Adelaide. Australia. Adelaide Museum. 



b. Ad. sk. Victoria Park, Svdnev, N.S.W. Prof. Andersou Stuart, M.D. 



(F. J. Bourne). ' [P.]. 



c. Ad. sk. Hauraki Gulf, New Zealand. Sir Walter BuUer [P.]. 



13. Puffinus persicus. (Plate lY.) 



Piiffinus persicus, Hume, Stray F. i. p. 5 (1873), v. p. 292 (1877), 

 viii. p. 115 (1879) : Blanf. Ibis, 1873, p. 215 ; Barnes, Ibis, 1893, 

 p. 175. 



Adult female. Closelv allied to P. ohscurus, but rather browner 



