ORNITHOLOGICAL EXPLORATIONS. 



235 



comes mucli nearer to the Japanese species, the rusty tinge of which is 

 rather conspicuous. My birds show, however, two very peculiar feat- 

 ures, viz, dark blackish brown scapulars and interscapulars, the lighter 

 edges being conspicuous on the inner webs, and the rusty colored hind 

 neck only dotted with small dark spots, forming a light color between 

 the strongly marked pileum and the dark color of the upper back ; be- 

 sides, the spots on the fore neck and upper breast are smaller and 

 darker, and, consequently, more distinct. The bill is somewhat longer 

 and stouter than in ja/ponica. 



The specimens from Vladivostok collected by Mr. Jouy and Dr. Dale 

 are paler and smaller, thus being referable to A. intermedia Swinh. 

 They seem to occupy the same position to the Kamtschatkan species, as 

 A. cantareUa Bp. {nee Swinh., nee Taczan., quse intermedia) does to 

 the typical arvensis. The birds from Vladivostok have the dark color of 

 the scapular region more confluent and not so distinctly streaked as can- 

 tareUa. A.coeUvox is sufficiently distinct by its considerable smaller size. 



Lists of measurements of the material examined is added for com- 

 parison. 



List of specimens collected. 



;^ I ^ 



Locality. 



89027 1020 I Bering Island May 9, 1882 



89026 1117 do May 30, 1882 



89153 I 1242 i. Petropaulski June30,1882 



89154 I 1249 do Jnly 4,1882 



92658 I 1995 Bering Island Apr. 19, 1883 



92661 2040 Petropaulsti May 19,1883 



92659 i 2049 do May 19, 1883 



92657 2079 i Bering Island May 13, 1883 



92662 i 2041 ' Petropaulski May 19, 1883 



92660 1 2046 ! do I May 20,1883 



d ad. 

 cT ad. 

 d ad. 

 d ad. 

 d ad. 

 d ad. 

 d ad. 

 (d")ad. 

 ? ad. 

 ? ad. 



Average measurements of eight males . 



mm. 

 186 



187 

 183 

 173 

 193 



197 



187 



187 

 185 



187 



Average 



measurements of two females 1^6 



mm. 

 114 

 119 

 112 

 116 

 115 

 118 

 115 

 110 

 107 

 110 



116 



109 



mm. 

 76 

 74 

 70 

 68 

 09 

 73 

 71 

 75 

 70 

 69 



mm. 

 12 

 14 

 13 

 13 

 14 

 13 

 12 

 13 

 12 

 12 



13 

 12 



2fo. 89027.— Iris dark brown. Feet light reddish brown; tarsal joint with a strong tinge of dark 

 gray; toes below livid. 

 No. 89026.— Iris hazel. 

 Ko. 89153.— Bill brownish flesh color; tip, culmen, and sides of upper mandible blackish brown, ieet 



pale reddish brown ; tarsal joint dark grayish ; nails blackish gray. 



No. 92658.-Iris dark hazel. Bill, upper mandible dai kbrownish gray ; along tomia and whole lower 

 mandible pale yellowish gray. Testes large, swollen. 



No 92661 -Iris brown. Bill horny blackish brown ; tomia and back of lower mandible paler, gray- 

 ish. Feet reddish gray ; joints darker gray ; below livid. Testes large, swollen. Stomach containing 

 seeds. 



No. 92662.— Iris, bill, and feet as foregoing. Largest egg 2"'°> in diameter. 



