The members of this genus are very nearly allied to the Lyncorni, a group of birds inhabiting the Indian Islands.

46. Eurostopodus albogularis[Vol. II. ] Pl. 7.
47. Eurostopodus guttatus[Vol. II. ] Pl. 8.

Genus Caprimulgus, Linn.

Europe, Asia and Africa are the great strongholds of the members of this genus as at present restricted. A single species only has yet been discovered in Australia, where it frequents the northern or intertropical parts of the country.

48. Caprimulgus macrurus, Horsf.[Vol. II. ] Pl. 9.

This bird is found in Java, and I believe in Southern India.

Family HIRUNDINIDÆ, Vig.

Genus Acanthylis, Boie.

A group of birds possessing enormous powers of flight, and the members of which are distributed over the Indian Islands and Asia; the form is also found in Africa and in America, but in those countries the species are fewer in number: one species only has yet been discovered in Australia.