Synopsis The Textbook of Invertebrate Zoology has been prepared so as to give appropriate and comprehensive account of the different animals belonging to different phylum. The author hope that this will be of more help to consult the subject instead of taking the large volume. They will save the time as well as the money alongwith handable volume. Each of the volume deals with the latest information about the Phylum-PROTOZOA, PORIFERA, COELENTERATA, HELMITHES, ANNELIDA, ARTHROPODA MOLLUSCA, ECHINODERMETA and MINOR PHYLA. The morphology, anatomy reproduction and detailed classification with their representatives have been gives in each volume. It is expected to be a boost for the students as well as teachers as well as other learners.