Genera Microbates and Raraphocsenus. 95 



Hub. S.E. Brazil {Max.), Bahia [Wucherer), Rio Capim, 

 Para {Wallace). 



Mus. S.-G., P. L. S. 



.j\ 3. RhamphocvEnus albiventris, sp. nov. 



Rhamphnccenus melanurus, Scl. et Salv. P. Z. S. 1867, p. 750 

 (Amazons), 1868, p. 628 (Venezuela). 

 Praecedenti similis sed gastrseo albo diversus. 



Hab. Guiana, Venezuela, et Amazonia. Surinam ((7. 5flr^- 

 Jett) , San Estebau, Venezuela {Goinng), Sarayacu, Ecuador 

 {Buckley), Chyavetas, Upper Amazons {E. Bartlett). 



Mus. P. L. S. et S.-G. 



The Amazonian form of this species seems to be distinguish- 

 able (as is usually the case) from that of the wood region of 

 S.E. Brazil. The lower surface is nearly uniform white, 

 not showing the rufous flanks of its Brazilian representative. 



~f-3. Rhamphoc^nus rufiventris. 



Scolopacinus rufiventris, Bp. P. Z. S. 1837, p. 119. 

 Rhamphoc<snus rufiventris. Gray, Gen. B. i. p. 157, pi. 47. 

 fig. 2; Scl. P. Z. S. 1858, p. 244, et Cat. A. B. p. 184; 

 Bp. Consp. p. 201; Scl.et Salv. Ibis, 1860, p. 399; P. Z. S. 

 1864, p. 356, 1879, p. 525 (Antioquia); et Nomencl. p. 73; 

 Salvin, P. Z. S. 1867, p. 145 (Veragua), 1870, p. 195 (Vera- 

 gua) ; Ibis, 1869, p. 319 (Costa Rica). 



BhamplioccBnus sanctte-marthce, Scl. P. Z. S. 1861, p. 380; 

 Cat. A. B. p. 184. 



Murino-brunneus, capite toto prsecipue ad latera rufescente, 

 subtus pallide rufescens ; gutture albo, plumis subtus 

 cinereis ; cauda nigra, rectricibus tribus extimis albo 

 terminatis, extima etiam in pogonio externo albo lim- 

 bata : long, tota 5*3, alse 2*2, caudse 2*0, rostri a rictu 

 1-1, tarsi 0-9. 

 Hab. Central America from Vera Paz to Panama, and 

 Northern Colombia. Vera Paz {Salvin) ; Costa Rica and 

 Veragua {Arce) ; Panama {McLeannan) ; Santa Marta 

 {Vei'reaux) ; Antioquia {Salmon) ; Bogota. 

 Mus. P. L. S. et. S.-G. 



The series of fourteen specimens of this species from the 

 above-mentioned localities now before me shows that it extends 



