560 



BIRDS OF THE GALAPAGOS ARCHIPELAGO— BIDGWAT. vol.xix. 



bljK'li : legs and feet dusky brown. Length (skin), 4.00; vying-, 2.70, tail, 

 l.().j; culnien, ()..">0; gonys, i).'M)\ bill from rictus, 0.")0; depth at base, 

 0.35; tarsus, 0.85; middle toe, 0.58. 



The relationships of tliis sjjeeies are evidently with C. liroslhemclaa 

 rather than (\ pHittandufi and allied forms, the bill being even more 

 compressed and elongated. In coloration, the adult males resemble 

 them about equally, there being no material difference between the 

 various species of the group. ' 



Tlie adult female most resembles that of C. prosthrmclas, hnt has the 

 chest and sides darker (distinctly brownish butfy), tlie former without 

 distinct streaks, at least in the single specimen examined. 



An immature bird of undeterndued sex (JSTo. 52401, U.S.N.M. ; Charles 

 Island; received from Professor Sundevall) is darker and browner 

 above than the adult female described above, has the under i)arts paler 

 with distinct dusky streaks on the chest, and has the bill light colored 

 (maxilla light brown, mandible pale dull bufty). 



Measnremcnis of CamarhynchuH pauper. 



CAMARHYNCHUS INCERTUS, Ridgway. 



Camarhynchus incerius, Ridgwav, Proc. U. S. Nat. Mus., XVIII, No. 1067, April 

 23, 1896, p. 29-1 (James Island, Galapagos Archipelago; collectiou of Dr. G. 

 Banr). 



Specific characters. — Adult male unknown. Adult female most like 

 that of C. comprcs.sirosfris, Kidgway, of Jervis Island, but smaller (the 

 bill especially), with upper parts brighter olivaceous and under parts 

 distinctly yellowish buff. Similar in color to C. salvini, Kidgway, of 

 Chatham Island, but much larger. Wing, 2.50; tail, 1.50; culmen, 0.53; 

 tarsus, 0.82. 



Range. — Galapagos Archipelago (James Island, Baur and Adams). 



A (Inll female. — Ty))e, No. 521, collection of Dr. G. Baur; James Island, 

 Galapagos, August 13, 1891. Above bright bufify olive, the pilcum 

 rather distinctly streaked with grayi.sh dusky, the back and scapulars 

 more obsoletely and broadly streaked or spotted with the same, entirely 



'Excepting possibly C. salvini, of which I have never seen a black-headed male. 



