Marshall, 1942 18. Catalog Lake Olomaga, 200 ft., Dept. San Miguel, El Salvador February 15 skeleton 1946 skeleton ♀ Phalacrocorax oliverens ovum small ♂ im " " testes 11 mm. skeleton 1949 ♀ Anhinga anhinga largest ovum 3 mm. " " " " ♂ " " testes small 1951 ♂ Cochlearis cochlearis " " 1952 skeleton ♀ Pandion haliaetus ovum small skeleton 1953 ♀ Ortalis leucogaster " " 1954 ♀ " " largest ovum 3 mm. 1955 skeleton ♂ Jacana spinosa testes 4 mm. 1956 skeleton ♂ im " " testes 3.5 mm. 1957 ♂ im " " " 3 mm. 1958 ♀ " " ovum 1.3 mm. 1959 skeleton 1960 ♂ Chloroceryle americana testes small 1961 skeleton ♂ aenea " " skeleton 1962 ♂ Iridoprocne bolton allilinea testes 7mm skeleton 1963 ♀ " " ovary small 1964 ♂ " " testes 7mm. 1965 ♀ " " ovum small February 17 1966 ♂ Hylophilus decurtatus testes 1.7mm. 1967 ♀ Polioptila bilineata ovary small 1968 ♂ Platypsaris aglaiae testes 3mm. 1969 ♂ Juirica caerulea " small 1970 ♂ Halria salvini " " 1971 ♂ Piranga flava " "