﻿298 Mr. E. Hartert on the Birds of 



This species is not rare in certain places, such as the rocky 

 hills covered with brushwood and cactus, both on Aruba and 

 Cura9ao_, but it is absent from Bonaire, thus indicating its 

 immigration from the continent. I saw it in the bush on 

 St. Thomas, where it has already been stated to occur by 

 Bidgway. It may have been introduced into that island ; but, 

 on account of other affinities between the ornis of St. Thomas 

 and that of Curacao, this is very questionable. 



8. Myiarchus brevipennis, Hartert, Bull. B. O. C. iii. 

 p. xii; id. Ibis, 1893, p. 123. 



I have compared this new insular form of Myiarchus with 

 specimens in Berlepsclr's museum and with the fine series in 

 the British Museum, and find that it is closely allied to 

 Myiarchus tyrannulus (cf. Scl. Cat. B. B. M. xiv. p. 251), but 

 readily distinguishable from it by its shorter wings and tail, 

 longer tarsus, the more olive-greyish and less brownish colour 

 of the upper parts, and the blackish lower mandible, which in 

 M. tyrannulus is pale brown. 



It is remarkable that in Venezuela the true M. tyrannulus 

 occurs, and that the Island of Grenada is inhabited by 

 another species, M. oberi, Lawr. Sclater (I. c.) has united 

 M. oberi with M. tyrannulus ; but the specimens now in the 

 British Museum and in Berlepsclr's collection show that 

 M. oberi is a very distinct species. It differs in the much 

 greater extent of the rusty colour on the inner webs of the 

 rectrices, decidedly darker upper surface, longer bill, and 

 longer wings and tail, thus pointing more to M. mexicanus 

 in its size, but not in the colour of the back. Specimens 

 from the three islands Aruba, Curayao, and Bonaire are 

 quite similar. Total length about 7 3 inches, wing 3*4 to 

 3-59, tail 3-3 to 3*5, culmen 0*7 to 0-8, tarsus 075 to 085. 



9. Sublegatus glaber, Scl. & Salv. P. Z. S. 1868, p. 171, 

 pi. xiii. (Caracas); Berl. J. f. 0. 1892, p. 81 (Cura9ao). 



Not very rare. 



10. Tyraxxus dominicexsis (Gm.j. 



This bird seems to be very rare on Aruba, where I did not 

 obtain it, but once saw a pair. That this species is rarest on 

 [10] 



