I'RUCELLAIUIDJ!; — THE PETKELS — PIUOCELLA. 



373 



Genus PRIOCELLA, Homkkox and Jacquinot. 



PrioccUa, IIoMii. & Jaiij. t'uiiipt. liciid. XVIII. 1814, 357 (tyi)c, P. dttninli, IIo.MU. & Jacq., = yVo- 

 ccllarUi ghtciiiloidcs. Smith). 



Char. Siinilftv to Fulmanif, l)Ut bill much slcmloivr, the nasal tubes shorter, more dt'presst'd, 

 concave on top, and separated by a wide space from the maxillary unguis. 



P. i/hiciahndes. 



The generic name Thalassnica, Reich. (" Sy.st. Av." 1852, p. iv) has usually been employed fur 

 this species. But, aside from any question of priority (Thalansoica dating 18.52, and Priocella 1844), 

 the type of Thulassoica is explicitly stated to be the Procdlaria antttrctica (C}MEL.),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, Acipetes, and which is certainly perfectly ilistinct generically from the type of the 

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



Priocella glacialoides. 



THE SLENDEB-BILLED FULMAR. 



Procdlaria tcnuirostri.i, Am. Orn. niog.V. 1839, 333 ; B. Am. VII. 1844, 210 (not of Temm. 1828). — 

 Lawii. in Bainl's B. X. Am. 1858, 826. — Baikd, Cat. N. Am. B. 1859, no. 637. 



Tkalrissokii ghicialuidcs, b. tcnuiro.il ris, Boxap. Coiisp. II. 1856, 192. 



Fitlmarus tenuirostris, Couii.s, Clieck List, 1873, no. 583. 



Priocella tenuirostris, Kiimw. Pr. U. S. Nat. JIus. Vol. 2, 1880, 200 ; Nom. N. Am. B. 1881, no. 

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



Prncrtlaria r/hieu! hides, SMITH, lUustr. S. Afr. B. 1849 (') t. 51. 



Thalassoica glacialoides, Ueiciienu. Syst. Av. 1852, p. iv. — Bonap. Consp. IL 1856, 192. — CouES, 

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



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



Procdlaria Smithi, Schleo. Mas. P.-B. Proc. 1863, 22. 



Priocella Oanioti, Homd. et Jacq. Voy. Pole Sud. IIL 1853, pi. 32, fig. 42 [fide Gray). 



Hah. 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 ; njiper parts pale pearl-gray, fading 

 iimduiilly 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 honi-color, decjiening into black at their points ; 

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

 blotched with slaty black on the joints" (Goui.u).* 



* Main killed at Valpamiso, Cluli, Aug. 4, 1879 : "Logs gray, witli blue stains ; bill gray, with blue 

 I'ati'hcs" (Shakpe, p. Z. S. 1881, p. 11). 



