300 Count T. Salvador! on 



('ouut Turati — the last being an immature bird, while the 

 three others are fully adult. 



The compaiison of these specimens shows quite clearly 

 that the southern biids are smaller, have constantly the grey 

 pectoral band, more or less pronounced, and have the sides 

 of the body less freckled with grey. The northern birds are 

 larger, have no grey baud across the breast, and the sides of 

 the body more freckled with grey. 



It seems also that the habits of the two species are different : 

 the southern birds being quite pelagic, Avhile the northern 

 birds, according to Siguor Fea's statements, are more noc- 

 turnal, resorting to their stony furrows on the mountains 

 at day, and going to sea at night. 



Convinced of the specific value of the differences pointed 

 out, I have accordingly named the northern bird (Estrelata 

 fecE (see p. 302). 



I add the full synonymy and the descriptions of the two 

 species, together with some remarks on their geographical 

 distribution. 



ffisTRELATA MOLLIS (Gould) . 



Procellaria mollis Gould, Ann. N. H. xiii. p. 363 (20th to 

 40th deg. S. lat.) (1844); id. B. Austr. vii. pi. 50 (1848) ; 

 Rchnb. Nov. ad Syn. Av. Natatores, t. 25. If. 2606-7 (ex 

 Gould) (Dec. 1850) ; Licht. Nom. Av. p. 100 (SUd-See) 

 (1854) ; Layard, Ibis, 1862, p. 98 (lat. 44° S., long. 138° E.); 

 Schleg. Mus. P.-B., Procellaria , p. 11 (Mer de TAustralie) 

 (1863) ; Pelz. Reise ' Novara,' Zool. i. Vog. p. 146 (" Indischer 

 Ocean, gegen St. Paul zu, ? Stiller Ocean, nachst Neu-See- 

 land'O (1865) ; Hutton, Ibis, 1865, p. 287 (S. Ocean), 1867, 

 pp. 188, 191 (between lat. 35°40'S., long. 4^28' W., and lat. 

 39°30'S., long. 25° E.) ; ? Finsch, J. f. Orn. 1870, p. 373 

 (part, ex Pelzeln) ; ? Hutton, Cat. B. New Zeal. p. 47 (1871); 

 Layard, Ibis, 1872, p. 337 (lat. 8°40'N., long. 34^31' W.) ; 

 Finsch, J. f. O. 1872, p. 255 ; BuUer, Hist. B. of New Zeal., 

 Introd. p. XV (1873); Finsch, J. f. O. 1874, p. 207; Cab. 

 et Rchnw. J. f. O. 1876, p. 329 (part., lat. 32° 11' N., long. 

 59°4]'E., lat. 33° 26' S., long. 79° 42' E.) ; Gieb. Thes. 

 Orn. iii. p. 306 (syn. emend.) (1877). 



