The present work deals with the description of over 440 species of nematodes, belonging to about 154 genera, 54 subfamilies and 33 families and 9 orders, covering validation, invalidation and new propositions of old time species and their taxonomic categories. It is hoped that this book will provide a first hand knowledge of nematodes parasitizing the mammals of India to the students, research workers, veterinarians, wild life managers, helminthologists and even ...