OP THE GALAPAGOS AECHIPELAGO. 



477 



dilutior : rostri maxilla brunnea : mandibula albida : pedibus flavicanti griseis : long, 

 tota 3-85, alae 2, caudae 1'5, tarsi '8. 



? mari similis, sed paulo ochrascescentius tincta. 



Hah. Chatham Island, James Island {Darwin) ; Indefatigable Island (Habel). 



Dr. Habel gives the measurement of the outstretched wings of this species as 

 6f inches. He adds the following note : — " This species lives exclusively on insects, 

 which it hunts through the thickest bushes in flocks, warbling its not unpleasing notes. 

 It wanders from bush to bush by a short, low flight. The density of the thickets often 

 renders it a difficult bird to secure." — H. 



Certhidea fusca. 

 Certhideafusca, Scl. & Salv. 1870, p. 324. 



Supra fusca, subtus grisescenti-albida : subalaribus et remigum marginibus internis 

 albis: rostro et pedibus nigris : long, tota 3-7, alse 2-0, caudae 1-5, rostri a rictu 0-5, 

 tarsi 0'8. 



Obs. Praecedenti similis sed rostro graciliore, colore, sicut pedum, nigro et veste niagis 

 fusca distinguenda. 



Hab. Bindloe and Abingdon Islands {Habel). 



Certhidea fusca. 



"The morning after I landed on Abingdon Island I was pleasantly surprised on 

 hearing a melodious song near the tent which I had never heard before in other 

 islands of the archipelago, and which reminded me of the notes of a Central-American 

 Wren. Hurrymg out of the tent to look for the songster, I could hardly believe my 

 eyes when I saw this bird, expecting to find a Wren. Only by repeated observations 

 could I convince myself that it really was the owner of so sweet a voice. 



" Its habits only differ from those of the preceding species inasmuch as it is found in 

 smaller flocks. These keep flying from bush to bush, which on the arid volcanic soil 

 of Bindloe and Abingdon Islands grow less densely and are more isolated. Certhidea 

 fusca lives entirely on insects." — H. 



