Freshwater Sponges, Hydroids & Polyzoa

A detailed natural‑history guide, this volume surveys the three principal groups of freshwater organisms—sponges, hydroids, and polyzoa—drawing heavily on specimens from the rivers and lakes of the Indian subcontinent. The author blends careful taxonomy with observations on life‑history and ecology, offering readers clear descriptions of species’ structures, habitats, and seasonal behaviors. Richly illustrated by the work of museum curators, the text serves both as a reference for scholars and a field companion for anyone exploring freshwater ecosystems.

The systematic index catalogues dozens of species, from familiar Spongilla and Hydra to the more obscure Paludicella and Plumatella, each accompanied by notes on distribution and distinguishing features. Throughout, the narrative emphasizes the interconnectedness of these organisms with their environments, highlighting patterns of growth, reproduction, and adaptation. Even readers new to aquatic invertebrates will find the explanations accessible, while specialists will appreciate the thorough documentation of Indian freshwater fauna.