BRACHYRAMPHUS. 15 



2.14 X 1-42, ovate, ground-color buffy, speckled or otherwise marked 

 with various shades of brown. Hah. Pacific coast of North America, 

 from southern California to western Alaska. 



23. B. marmoratus (Gmel.). Marbled Murrelet. 



c\ Culmen .75. Summer adult : Similar to corresponding stage of B. rnar- 



moratus, but markings of upper parts buffy and dull whitish, instead 



of deep rusty. Wing 5.50, culmen .75, tarsus .70, middle toe .95. 



Eab. Coasts of northeastern Asia, from Japan to Kamtschatka. 



B.perdix (Pall.). Partridge Murrelet.* 



b\ Exposed culmen not more than two-thirds as long as inner toe without claw ; 

 secondaries broadly tipped with white, and outer tail-feathers partly or 

 wholly white. 

 c\ Tarsus .60 or more. Summer adult : Above plumbeous, thickly marked 

 with irregular, "taostly longitudinal, spots of buff; lower parts chiefly 

 white, the chest and sides washed with buff and irregularly spotted 

 and barred with dusky ; belly more faintly marked with more regular 

 crescentic bars. Winter plumage : Above glossy plumbeous, the back 

 and rump very narrowly and indistinctly barred with white; scapu- 

 lars chiefly white ; sides of head (including lores and superciliary 

 region), a narrow collar round hind-neck, and entire lower parts, 

 pure white, the sides of the breast crossed by a broad band of slate- 

 gray, narrowing toward the middle of the chest. Wing 5.10-5.80, 

 culmen .35-.45, depth of bill at base .20-.22, tarsus .60-.65, middle toe 

 .85-.95. Sab. Unalashka, through Aleutian chain to Kamtschatka 

 and northern Japan. 



24. B. kittlitzii (Brandt). Kittlitz's Murrelet. 

 c^ Tarsus .50. Wing 5.25, culmen .50, tarsus .50. Summer plumage : Above 

 grayish brown, head and neck spotted with white ; beneath white, 

 waved and spotted with brown. Hab. San Bias, western Mexico. 



B. brevirostris (ViG.). Short-billed Murrelet.^ 



Tarsus as long as or longer than middle toe without claw. 

 b\ Lining of wing white ; above plain dark slaty, beneath entirely pure white ; 

 length 9.60-10.50, wing 4.50-5.25, culmen .70-.80, tarsus .90-.95, middle 

 toe .85. Sab. Southern California to Cape St. Lucas. 



25. B. hypoleucus Xantus. Xantus's Murrelet. 

 b^ Lining of wing smoky gray, or slaty ; in plumage otherwise like B. hypo- 

 leucus; length about 10.25, wing 4.60, culmen .78-.80, tarsus .88-.90, 

 middle toe .80-.88. Egg 2.03 X 1-40, ovate, ground-color buffy, isabella- 

 color, or fawn-color, thickly sprinkled, speckled, or otherwise marked 

 with dark brown. Eab. Lower California (vicinity of Cape St. Lucas). 

 26. B. craveri (Salvad.). Craveri's Murrelet. 



1 Cepphus perdix Pallas, Zoog. Rosso-As. ii. 1826, .351, pi. 80. Brachyramphiis 2)erdix Stejn. Zeitschr. 

 Ges. Orn. iii. 1886, 21.3, p. 7. 



2 Uria brevirostris ViG., Zool. Jour. iv. 1828, 357. Possibly the same as B. kittlluii Brandt, 



