rROCELLAliUDM — THE PETKELS — riUOCELLA. 



373 



Genus FRIOCELLA, PIombron and Jacquinot. 



Priocclla, Homh. & Jacq. Coiupt. Rend. XVIII. 1844, 357 (type, P. Ganudi, Homb. & Jacq., = 7V'^- 



cellaria glacialoidcs, Smith). 



Char. Similar to Ftdmarm, hut bill much slenderer, the nasal tubes .shorter, more depre.ssed, 

 concave on top, and separated by a wide space from the maxillary unj^uis. 



P. glacialoides. 



The generic name Thalassoica, Reich. ("Syst. Av." 1852, p. iv) has usually been employed for 

 this species. But, aside from any question of priority {Thalassoica dating 1852, and Priocella 1844), 

 the type of Thalassoica is explicitly stated to be the Procellaria antarctica (Gmel.), a bird which the 

 late Professor W. A. Forbes has recently (" Zool. ' Challenger,'" Vol. IV. 1882, p. 59) made the type 

 of a new genus, Aeipetes, and which is certainly perfectly distinct generically from the type of the 

 genus Priocella. Aeipetes, however, is clearly a synonyme of Thalassoica. 



Priocella glacialoides. 



THE SLENDER-BILLED FULMAR. 



Procellaria temdrostris, AuD. Orn. Biog.V. 1839, 333 ; B. Am. VII. 1844, 210 (not of Temm. 1828). — 

 Lawr. in Baird's B. N. Am. 1858, 826. — Baird, Cat. N. Am. B. 1859, no. 637. 



Thalassoica glacialoides, b. tenuirostris, Bonap. Consp. II. 1856, 192. 



Fulmanis tenuirostris, CouES, Check List, 1873, no. 583. 



Priocella tenuirostris, Ridgw. Pr. U. S. Nat. Mus. Vol. 2, 1880, 209 ; Nom. N. Am. B. 1881, no. 

 706. — CouES, 2d Check List, 1882, no. 817. 



Procellaria glacialoides. Smith, Ilhistr. S. Afr. B. 1849 (?), t. 51. 



Thalassoica glacialoides, Reichenb. Syst. Av. 1852, p. iv. — Bonap. Consp. XL 1856, 192. — CouEs, 

 Pr. Ac. Nat. Sci. Phil. 1866, 30. 



Thalassoica glacialoides, a. polaris, Bonap. Consp. II. 1856, 192. 



Procellaria Smithi, Schleg. Mus. P.-B. Proc. 1863, 22. 



Priocella Gamoti, Homb. et Jacq. Voy. Pole Sud. III. 1853, pi. 32, fig. 42 (fide Gray). 



Hab. Seas throughout the southern hemisphere ; also, whole Pacific coast of North America 

 (common off the Columbia River). Apparently absent from the North Atlantic. 



Sp. Char. Adult : Head, neck, and lower parts white ; upper parts pale pearl-gray, fading 

 gradually into the white of the head ; remiges dark slate, the inner webs of the primaries chiefly- 

 white. " Irides brownish black ; nostrils, culmen, and a portion of the base of the upper mandible 

 bluish lead-color ; tips of both mandibles fleshy horn-color, deepening into black at their points ; 

 remainder of the bill pinky flesh-color ; legs and feet gray, washed with pink on the tai-si, and 

 blotched with slaty black on the joints" (Gould). ^ 



1 Male killed at Valparaiso, Chili, Aug. 4, 1879 : "Legs gray, with blue stains ; bill gray, with blue 

 patches" (Sharpe, P. Z. S. 1881, p. 11). 



