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Dictionaries, Encyclopedias, and Handbooks
Use dictionaries, encyclopedias and handbooks to learn about a topic and to find keywords and subject terms to use when searching indexes and databases.
Looking for less specific encyclopedias, dictionaries, handbooks, manuals or atlases? Use our Reference Sources resource guide for help. This guide lists both print and electronic resources.
Directories and Collections
Catalog of Fishes
The Catalog of Fishes is the authoritative reference for taxonomic fish names, featuring a searchable on-line database. From the California Academy of Sciences.
The Echinoid Directory
Designed and created by Andrew B Smith, Department of Palaeontology, The Natural History Museum.
Encyclopedia of Life
Online directory of all 1.8 million known species on Earth.
Gulf of Maine Area (GOMA): Census on Marine Life
The Gulf of Maine Area program is the regional ecosystem project of the global Census of Marine Life, which seeks to explain the diversity, distribution, and abundance of life in the ocean.
Ichthyology Primary Types Imagebase
The California Academy of Sciences Department of Ichthyology type collection contains over 37,000 specimens.
Marine Life of the Gulf of Maine
Image gallery and species information. From Andrew J. Martinez Photography.
MBLWHOI Library Digital Herbarium
Flora of Cape Cod, Massachusetts and associated coastal islands with over 2,200 algae specimens. Marine Biological Laboratory, Woods Hole Oceanographic Institution.
National Exotic Marine and Estuarine Species Information System (NEMESIS)
NEMESIS is a resource for information on non-native (or exotic) species that occur in coastal marine waters of the United States. From the Smithsonian Environmental Research Center (SERC)
World List of Marine, Freshwater and Terrestrial Isopod Crustaceans
Originally from the Smithsonian Institute, now hosted by the Flanders Marine Institute and overseen by an editorial board.
WoRMS World Register of Marine Species
The World Register of Marine Species aims to provide the most authoritative list of names of all marine species globally, ever published.
Dictionaries, Encyclopedias, and Atlases
5729 Fogler Library · University of Maine · Orono, ME 04469-5729 ; (207) 581-1673