178 DENDROCOLAPTIDA. 
B. Rostrum robustum; nares omnino aperte. 
a. Rostrum plus minusve falcatum, angustum, compressum, 
ad apicem viz hamatum. 
DENDRORNIS. 
Dendrornis, Eyton, Contr. Orn. 1852, p. 23; Scl. Cat. Birds Brit. Mus. xv. p. 127; Elliot, Auk 
vil. p. 160. 
Mr. Sclater admits sixteen species of Dendrornis and gives the names of four others 
which he was unable to determine. Mr. Elliot, going over the same ground, includes 
twenty-two species in the genus. These are distributed over nearly the whole of 
Tropical America, from the Mexican States of Tamaulipas and Sinaloa to Southern 
Brazil. Five species are found within our limits, of which two occur in Southern 
Mexico and Guatemala and the other three in the more southern districts. D. eburnei- 
rostris is the only distinct endemic species, but the doubtful D. nana reaches the | 
extreme limits of our region and probably passes beyond them into South America. 
Compared with that of Picolaptes, the bill of Dendrornis is stout and rather straighter, 
the culmen curving rather more abruptly at the end. In other respects the two genera, 
as well as Xiphocolaptes, are very similar, having plumage similarly marked, the wings, 
tail, and feet are similarly constructed, and the nostrils in all are quite open. 
1. Dendrornis eburneirostris. 
Xiphorhynchus flavigaster, Sw. Phil. Mag. (new ser.) 1. p. 440 *; Bp. Consp. Av. i. p. 208%. 
Dryocopus flavigaster, Des Murs, Icon. Orn. livr. 9°. 
Nasica flavigaster, Lafr. Rev. Zool. 1850, p. 383 *. 
Dendrornis flavigastra, Scl. P. Z.S8. 1856, p. 289°; 1859, p. 381°; Scl. & Salv. Ibis, 1860, p. 3987; 
Sumichrast, La Nat. v. p. 248°; Ferrari-Perez, Pr. U. S. Nat. Mus. ix. p. 156°; Elliot, 
Auk, vii. p. 178”. 
Dryocopus eburneirostris, Less. Echo du Monde Say. 1843 1. Des Murs, Icon. Orn. t. 52”. 
Dendrornis eburneirostris, Eyton, Contr. Orn. 1852, p. 23; Cab. & Heine, Mus. Hein. ii. p. 37 
Lawr. Ann. Lye. N. Y. ix. p. 201%; Bull. U.S. Nat. Mus. no. 4, p. 25°; Scl. & Saly. 
P. Z. 8. 1870, pp. 834, 840°"; Nutting, Pr. U. S. Nat. Mus. vi. pp. 375 *, 385°; Boucard, 
P. Z. S. 1883, p. 450”; Ridgw. Pr. U. S. Nat. Mus. x. p. 580”; Scl. Cat. Birds Brit. Mus. 
xv. p. 1380”. 
Picolaptes validirostris, Eyton, Contr. Orn. 1851, p. 75”. 
Dendrocolaptes pecilonotus, Wagl. in Mus. Berl. (apud Cabanis & Heine) ™. 
Dendrornis mentalis, Lawr. Ann. Lyc. N. Y. viii. p. 481”; Mem. Bost. Soc. N. H. ii. p. 285 *°; 
Sanchez, An. Mus. Nac. Mex. i. p. 97”. 
Dendrornis albirostris, Lafr. MS. (apud Elliot) *. 
Supra brunnea, capite summo et cervice postica nigris, plumis singulis stria mediana cervina, dorsi plumis 
quoque striatis, striis nigro limbatis ; uropygio, alis extus et cauda cinnamomeis: subtus gula cervina, 
stria utrinque angusta nigra, plumis capitis lateribus cervinis nigro marginatis, pectoris et gutturis postici 
plumis fusco leviter terminatis, plumis abdominis pallide brunneis cervino striatis (striis singulis utrinque 
nigro marginatis), his marginibus ad ventrem obsoletis ; subalaribus et alis subtus (preter apices fuscos) 
