Explore a detailed survey of Pacific coast nemerteans with expert taxonomic keys and plates. This edition presents the Nemerteans of the Pacific Coast of North America as part of the Harriman Alaska Expedition’s scientific output. It offers a careful account of species known from Alaska to southern California, incorporating description, comparisons, and systematic structure to help readers identify and understand this little-known group. Two long sections frame the work: an introduction to the expedition’s methods and findings, and a comprehensive, newly edited treatment of species recorded from the Pacific coast. The text emphasizes how environmental conditions along the coast shape the distribution and diversity of these ribbon worms, and it highlights relationships to closely related forms found elsewhere. What you’ll experience Detailed species accounts with keys to groups and species for reliable identification - Systematic discussion of genera, species, and notable variants - Numerous illustrations and plates supporting taxonomic descriptions - Context on distribution, habitats, and the biodiversity of the Pacific coast Ideal for readers of marine biology, invertebrate taxonomy, and natural history who want clear, ground-truth information about Nemerteans of North America’s Pacific shores.