Title: Freshwater sponges, hydroids & P̲o̲l̲y̲z̲o̲a̲.
Authors: Annandale, Nelson, 1876-1924.
Publisher: Taylor and Francis,
Year: 1911
Subjects: Freshwater animals India.; Freshwater animals Sri Lanka.; Freshwater animals Burma.; Freshwater animals; Invertebrados (Biologia); Burma; India; Sri Lanka