AVES — CHARADRIID^ 267 



Culmen, 3.05 inches. 



Tail, 4.05 inches. 



Tarsus, 1.75 inches. 



The adult female is appreciably larger than the adult male. 



Color. — Adult male (cited above). General color above black, with a 

 white area on each closed wing and on the upper tail coverts. Below, 

 black as far back as the chest, thence white. 



Head : Entirely glossy black, except for a small crescentic white spot 

 below the eye. 



Neck : Entirely glossy black. 



Back : Mantle, lower back, and rump glossy black ; fJie upper tail 

 coverts white. 



Tail : Terminal portion of rectrices glossy black, the basal half pure 

 white, the color of the shafts matching the color of each area. 



Wings : The upper coverts glossy black. The secondary coverts with 

 broad white tips. Primaries black, with no ivhite along the shafts or on the 

 inner loebs. All the secondaries except the extreme inner ones pure white. 



Lower parts glossy black from the bill back to the breast, where the 

 black abruptly terminates. The remainder of the under surface white. 

 Most of the under wing coverts black, the axillaries white. 



Bill, "orange red." 

 • Feet, "grey." 



"Iris and eyelid brilliant yellow" (data of color of soft parts quoted 

 from Dr. Coppinger). 



The female is similar to the male in color. 



636, male. Penguin Islands. 



"Bill red, legs flesh, eyes orange." 



653, female, ] „ ^^ , 



, \ lom Harbour. 



654, young, ] 



"Eyes orange; stomach had mussels." 



" Eyes of young were brown, bill of adult red, feet flesh-coloured ; bill 

 of young brown." 



661, female, Tom Harbour. 



720, male, Elizabeth Island. 



"Eyes yellow, feet flesh, bill red, eyelids red; stomachs had mussels." 

 (Sclater & Salvin, on Birds Antarctic America, Voy. H.M.S. "Chall." 

 — No. IX. pp. 437-438, 1878.) 



