430 Annals of the Carnegie Museum. 



94. Egretta candidissima candidissima (Gmelin). 



Ardea candidissima Gmelin, Syst. Nat. I, ii, 1788, 63. — Zeledon, An. Mus. 

 Nac. de C. R., I, 1887, 130 (Liberia). — Cherrie, Expl. Zool. en C. R., 1891 

 -2, 1893, 57 (Rio Grande de Terraba). — Richmond, Proc. U. S. Nat. Mus., 

 XVI, 1893, 5 2 7 (Ri° Frio). — Salvin and Godman, Biol. Centr.-Am., Aves, 

 III, 1901, 162 (C. R.). 



Garzetta candidissima Lawrence, Ann. Lye. N. Y., IX, 1868, 142 (C. R. [J. 

 M. Dow]). 



Leucophoyx candidissima Sharpe, Cat. Birds Brit. Mus., XXVI, 1898, 124. 



Egretta candidissima, Gosse, Birds of Jamaica, 1847, 336. 



C. H. Lankester Collection : Guanacaste. 



With the exception of A garni a agami this beautiful heron has become, 

 through the efforts of the plume-hunters, the rarest of the family in 

 Costa Rica. I have never seen it on the Caribbean coast or rivers, 

 although it probably does occur in small numbers along the lower part 

 of the San Juan River and the lagoons contiguous to it. It is only 

 in the marshes and lagoons of Guanacaste that it is still found in any 

 number and even there I understand they are lately becoming very 

 rare. 



95. Hydranassa tricolor ruficollis (Gosse). 



Egretta ruficollis Gosse, Birds of Jamaica, 1847, 338. 



Demiegretta ludoviciana LAWRENCE, Ann. Lye. N. Y., IX, 1868, 142 (C. R. 

 [Frantzius] ). 



Ardea tricolor ruficollis Zeledon, An. Mus. Nac. de C. R., I, 1887, 150 (Punt- 

 arenas). 



Hydranassa ruficollis Sharpe, Cat. Birds Brit. Mus., XXVI, 1898, 127. 



Ardea tricolor SALVIN and Godman, Biol. Centr.-Am., Aves, III, 1901, 164. 



A rare migrant in Costa Rica, Puntarenas being the only locality at 

 which it has been known to be taken. 



96. Nyctanassa violacea (Linnaeus). 



Ardea violacea LlNN^US, Syst. Nat., ed. 10, I, 1 758, 143. 



Nycticorax violaceus Frantzius, Jour, fur Orn., 1869, 376 (San Jose). — Zele- 

 don, An. Mus. Nac. de C. R., I, 1887, 131 (Las Trojas and Alajuela). — 

 Cherrie, Expl. Zool. en C. R., 1891-2, 1893,52 (Pantanos de Sierepe) ; 

 Auk, VII, 1890, 332 ; IX, 1892, 322 (San Jose, resident, but adult birds 

 seldom seen). 



Nyctanassa violacea Sharpe, Bull. B. O. C, V, 1895, xi. — Sharpe, Cat. Birds 

 Brit. Mus., XXVI, 1898, 130 (Costa Rica [Arce]). — Salvin and Godman, 

 Biol. Centr.-Am., Aves, III, 1901, 174 (references cited). 



Bangs Collection : Bolson (Underwood). 

 C. H. Lankester Collection : Limon. 



