Calcareous Tubeworms (Polychaeta, Serpulidae) of the Arctic Ocean is a taxonomic guide to serpulid polychaetes (including the subfamily Spirorbinae) of the Arctic Ocean. Identification keys include 37 serpulid taxa, all of which are described and illustrated in detail. Taxonomic treatment of species includes discussion of taxonomic problems, nomenclatural types, synonyms, and differential diagnoses. Information is also available on species reproduction, ecology, distribution, and habitat and locality. Species illustrations are presented as scanning electron micrographs and light micrographs, as well as line drawings. A comprehensive glossary and literature reference section is included. The study is based on extensive material (more than 600 samples) collected all over the Arctic and deposited in Russia, Iceland, Germany, Norway, and Australia. This fully illustrated laboratory guide is intended for invertebrate zoologists, marine ecologists, environmental consultants, as well as students and naturalists.