MAEGAEOENIS.— DENDEOCINCLA. 171 



Colombian State of Antioquia, in the State of Panama, and in Costa Eica. Specimens 

 from nearly all these places are before us, and we find that they agree in every 

 respect. 



Compared with M. ruhiginosa this species is very distinct, for not only is the general 

 plumage very much browner and the spots on the under surface more numerous and 

 larger, but the wings are relatively short and much rounded. 



We have no record of this bird beyond Salmon's note that the iris in life is dark and 

 that its food consists of insects. 



Subfam. GLYPHORHYNCHINJE*. 

 a. Rostrum latum, turdiforme, haud cuneiforme ; cauda brevis, quam alee brevior. 



DENDROCINCLA. 



Dendrocincla, Gray, List Gen. Birds, p. 18 (1840); Eidgway, Pr. U.S. Nat. Mus. x. p. 488 (6 Jan. 

 1888) ; Scl. Cat. Birds Brit. Mus. xv. p. 162. 



This genus is a somewhat isolated one, for with a great general resemblance to the 

 Dendrocolaptinse in the shape of the wings, tail, and feet, and the bill not very unlike 

 that of Dendrocolaptes, it has the nostrils completely covered with a membrane, so that 

 the nasal openings are curved slits lying along the lower edge of the nasal fossa ; this 

 membrane, too, is to a great extent covered with short feathers. This peculiar nostril 

 is almost exactly like that of Glyphorhynchus, so that Dendrocincla finds perhaps its 

 most natural position near that genus ; but the form of the bill is very difi'erent, and the 

 tail much less elongated, the shafts of the central rectrices being not nearly so much 

 produced. 



The genus Dendrocincla has been examined recently both by Mr. Ridgway and 

 Mr. Sclater. The former admits twelve species, and names three others as unknown 

 to him ; the latter gives ten species as known to him, and three unknown. This differ- 

 ence does not affect the numbers of the Central-American birds, both authors allowing 

 four species as inhabitants of our region. 



The extreme northern limit of the range of Dendrocincla reaches the hot forests of 



* In framing our introductory remarks on the family Dendrocolaptidse (antea, p. 146) we had intended to 

 assign the genus Dendrocincla to the Dendrocolaptinse, and to place it, as Mr. Sclater has done, with Dendro- 

 colaptes as a broad-bUled section of that subfamily. A further examination of the species of Dendrocincla, 

 however, shows us that this arrangement is not compatible with our definitions, for Dendrocincla has the 

 nostrils completely overhung by a thick membrane, and not open as in the other genera of the subfamily. 

 This character brings Dendrocincla in juxtaposition to Glyphorhynchus, notwithstanding the great difference in 

 the form of the biU and structure of the taU, which are described elsewhere under the respective genera. 

 Our scheme set out on p. 146 will still stand as it is, but the distribution of the genera in the various subfamilies 

 must be altered as follows : — The Glyphorhynchinae to contain two genera, Glyphorhynchus with one species and 

 Dendrocincla with four species ; and the Dendrocolaptinse six genera, instead of seven, with fifteen species. 



22* 



