198 Mr. 0. Salvin on the Ornithology of Guatemala. 
58. Symphemia semipalmata (Gra.). 
Common at Chiapam and the lagoons of the Pacific coast. 
59. Phalaropus wilsoni (Sab.). 
From a lake near Guatemala ( Constancia ). 
60. Recurvtrostra Americana, Gm.: Baird, Birds N. A. 
p. 703. R. occidentals, Vigors, Zool. Journ. 1829, p. 356; 
Salv. Ibis, 1865, p. 193. 
All the Avocetts I saw were in the plumage described by 
Vigors as R. occidentalis. They are common at Chiapam and 
about the neighbouring lagoons. 
61. Strepsilas interpres (Linn.): Baird, Birds of N. A. 
p. 701. 
Occurs on both coasts of Guatemala. 
62. Ortygometra jamaicensis (Gmel.). 
A single specimen, agreeing in all respects with examples 
from Jamaica, was shot by Mr. Fraser near the lake of Duenas. 
63. Gallinula galeata (Licht.). 
Lake of Duenas : not common. 
64. AEthyia yalisneria (Wils.) : Baird, Birds of N. A. 
p. 794. 
We obtained a single immature male of this species from the 
lake of Duenas. 
65. Larus heermanni, Cass.: Baird, Birds N. A. p. 848; 
Coues, Ibis, 1864, p. 388; Salv. Ibis, 1865, p. 190. 
Young immature birds only were obtained on the Pacific 
coast. They were usually found along the shore, and not in 
the lagoons. 
66. Chroicocephalus cucullatus, Licht. : Baird, Birds 
N. A. p. 851; Coues, Ibis, 1864, p.. 388. 
Usually observed a short way out at sea on the Pacific coast. 
67. Thalasseus acuflavidus, Cabot: Coues, Ibis, 1864, 
p. 389; Salv. ibid. pp. 381 & 386, et 1865, p. 190. 
A very common species on both coasts. 
68. Thalasseus elegans, Gambel: Coues, Ibis, 1864, p. 389. 
The only specimen of this bird which came under our notice 
