MONOGRAPH OF THE PETRELS. 



VIII. — Cymodroma, Ridgway. 



Fregetta , Bp., Comptes Rendus, XLL, p. 1113 (1855) ; 

 id., Consp. Av. II., p. 197 (1856, nee, Brisson 

 et auct.) ; Coues, Proc. Acad. Nat. Sci. Philad., 

 1864, p. 85 ; Forbes, Voy. " ChaUenger," Zool., IV., 

 pt. XL, p. 56 (1882) 



Cymodroma, Ridgway in Baird, Brewer, and Ridgway, Water 

 Birds N. Amer., II., p. 418 (1884) ; id., Man. 

 N. Amer. Birds, p. 71 (1887) ; Salvin, Cat. Birds 

 Brit. Mus., XXV., p. 364 (1896) 



Key to the Species. 



a. Breast and abdomen white, the middle of the latter 



sooty-black ; throat and fore-neck sooty 



b. Breast and abdomen entirely white. 



a'. Throat mottled with white, or almost entirely 

 white ; upper-surface uniform, without white 

 margins to the feathers 



b'. Throat uniform sooty-black ; upper-surface 

 regularly barred with greyish-white edges to 

 the feathers 



c'. Throat white, like the rest of the under-surface ; 

 a broad brown pectoral band 



c. Under-surface entirely sooty-brown 



Type 



C. grallaria 



C. grallaria 



melanogaster, p. 59 



melanoleucaf 



grallaria, p. 65 



albigularis, p, 68 

 mcestissima, p. 71 



FAMILY II.— PUFFINLD,E. 

 (Salvin, Cat. Birds Brit. Mus., XXV., p. 368.) 



Key to the Sub-families. 



a. Sides of the palate without lamellae . . . . . . 1. Puffinince 



b. Sides of the palate with more or less distinctly 



developed lamellae . . . . . . . . . . 2. Fulmarince 



* Count Salvadori (Bull. Brit. Orn. Club, XXI., p. 79, 1908) employs the generic name of Fregetta, 

 instead of Cymodroma, as he does not agree that Fregetta and Fregata are synonymous. 



| Since the enumeration of the species of the genus Cymodroma was published Count Salvadori has 

 separated this form from C. grallaria, Vieill., under the name C. (Fregetta) melanoleuca [Bull. Brit. Orn. 

 Club, XXI., pp. 78, 79 (1908)]. It is based upon a specimen (now in the Turin Museum) purchased at 

 Bullock's sale in 1819, and is said to be from the Island of Tristan da Cunha. 



XXXVIII 



