The importance of catfish burrows in maintaining fish populations of tropical freshwater streams in western Ecuador / Garrett S. Glodek.

v.73:no.1(1978)

The British freshwater Rhizopoda and Heliozoa / by James Cash, assisted by John Hopkinson.

3

The British freshwater Rhizopoda and Heliozoa / by James Cash, assisted by John Hopkinson.

4

The British freshwater Rhizopoda and Heliozoa / by James Cash, assisted by John Hopkinson.

2

Freshwater sponges, hydroids & Polyzoa. By N. Annandale.

Freshwater Sponges, Hydroids & Polyzoa

Report of the Shell Fish Commission of Maryland.

1

The British freshwater Rhizopoda and Heliozoa / by James Cash, assisted by John Hopkinson.

5