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Arthropoda
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Chelicerata
- Chelicerates - Discusses the characteristics of species under this animal group. With photos.
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Arachnida
- Tree of Life Web Project Arachnida - Features a taxonomic diagram of this phylum. With photos and references.
- Animal Diversity Web: Class Arachnida - Provides information on the external features and internal systems of this group. With data on orders under this class.
- Arachnida (Spiders, Harvestmen, Scorpions, Mites, etc.) - Lists sample species and taxonomic classifications. With links to images.
- Class Arachnida - Lists orders of this class. With photos and introduction.
- Wildlife of Sydney Spiders Arachnida - Discusses species from this class found in the area. With photos.
- Spiders- Relatively Speaking- the Arachnida - Provides basic facts of species under this group. With images.
- Biology Browser: Arachnida - Provides links to online references and additional subcategories.
- Entomology 201 Class Arachnida - Contains information on a course on this animal group.
- Amblypygi of La Selva - Contains photos of species found in the area. By Eileen Hebets from the University of Arizona.
- Arachnids Common Spiders, Ticks and Mites - Contains photos and introductory information of animals from this group.
- Arachnida (Mites, Ticks, Spiders) - Provides information on species in the Canadian National Collection of Insects, Arachnids and Nematodes. With list of publications and links.
- God of Insects Class Arachnida - Provides information on specimens under this group. With ordering guide.
- Amazonian Arachnida and Myriapoda Identification Keys to all Classes, Orders, Families, Some Genera - Provides information on this publication. With pricing information.
- Systematic Tree of Organisms Arachnida - Features a taxonomic profile of this animal group.
- Marine Spider Desis - Contains basic facts of this species. From a Guide to Seashore Life in Singapore.
- Arachnida (Spiders, Harvestmen, Pseudoscorpions) - Contains information on external features, respiration, behavior and habitation of this species. With photos.
- About Arachnid Fossils - Discusses ancient specimens of these species. With list of common names.
- Absolute Astronomy: Arachnid - Discusses habitation, diet, body structure and reproduction of this group. Includes links to related information and definition.
- A Review of the Tasmanian Species of Pararchaeidae and Holarchaeidae - Contains information on this publication. With abstract.
- Animals Arachnida - Features a taxonomic profile of this class.
- Biologia Centrali-Americana Arachnida - An electronic version of this publication. With guide to pdf pages.
- Illustrated Key to the Orders of Arachnida - Contains photos of sample species. With labeled body parts.
- Biokids Arachnida - Contains teaching tools on this animal group. With photos.
- Arachnida at the Museum of Entomology - Provides information on collected specimens. With overview.
- Fauna of British India Arachnida - Contains an electronic version of this publication. By Reginald Innes Pocock.
- Kinds of Arachnida - Lists scientific names of ticks. With data on common names and date of discovery.
- Arachnida, the Spiders, Scorpions, Ticks, and Mites - Contains online links and information on the members of this phylum.
- Mites Subclass to the Class Arachnida - Presents basic facts on these particular species. With photos.
- New Records of Pathogenic Fungi in Mites (Arachnida: Acari) from Brazil - Contains abstract of study by Geest, Leo P.S. van der, et al., with links to full text and PDF versions.
- Forestry Images Arachnida - Lists common names of species. With data on order and family.
- Books, Separata and Reprints on Arachnida - Lists publications on this animal group. With pricing information.
- Harvestman (Arachnida: Opiliones) from the Early Devonian Rhynie Cherts, Aberdeenshire, Scotland - Contains information on this article. With abstract.
- Magnolia Press Araenae - Lists publications available for this animal group. With ordering guide.
- Cryptostigmata (Arachnida: Acari) - Contains information on this publication. With abstract.
- Thrupp Lakes Species Data Arachnida - Lists species from this class found in the area. With common names.
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Araneae
- Aranaea Spiders - Provides introductory information on this animal group. With photos.
- Mate or a Meal? Familiarity Decides If Female Wolf Spider Loves 'em or Eats 'em, Cornell Researcher - Features an article on this subject. From Cornell News.
- Golden Silk Spider, Nephila clavipes (Linnaeus) (Arachnida: Araneae: Tetragnathidae) - Provides information on life history, habits and habitat. Site also provides references.
- Evolutionary Transformation from Muscular to Hydraulic Movements in Spider (Arachnida, Araneae) Geni - Contains information about this article. With abstract.
- Catalogue of the Jumping Spiders of Northern Asia (Arachnida, Araneae, Salticidae) - Contains a summary of this publication. With pricing information.
- Studies of Some Spiders of the Family Lycosidae (Araneae : Arachnida) - Provides information on this publication. With purchasing guide.
- British spiders (Arachnida, Araneae), Volumes 1 and 2 - Features information on this publication, with ordering guide.
- A Newly Recorded Spider of the Family Hahniidae (Arachnida, Araneae) from Taiwan - Includes abstract and full PDF version of article from Shyh-Hwang Chen, Ying Wang, and Sun-Chih Chen.
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Myriapoda
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Chilopoda
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Nematoda
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Phoronida
- Phoronida Introduction - Presents information about morphology, metabolism and reproduction. With images.
- Biodidac Phoronida - Provides a diagram showing the internal anatomy of sample species.
- Invertebrate Anatomy OnLine: Phoronis architecta - Exercises from laboratory manual review systematics, specimens, and external anatomy.
- Gulf Specimen Marine Laboratory Phylum Phoronida - Features a wormlike specimen belonging to this phylum.
- Black Phoronid Worm (Phoronis australis) - Provides a description and image of a member of this phylum.
- Lophophorate Phyla - Presents the two genera, body plan, locomotion, feeding and digestion, sense organs, nervous and respiratory systems.
- Horseshoe Worm Larva - Presents the image of a young actinotroch.
- Mitochondrial Genome of Phoronis Architecta-Comparisons Demonstrate that Phoronids are Lophotroc - Provides a copy of an article by Kevin G. Helfenbein and Jeffrey L. Boore. From the Oxford Journals.
- California's Phabulous Phoronids - Describes the available species in the state. For divers.
- Origin of Mesoderm in Phoronids - Offers a synopsis of the article by Freeman G. Martindale of Friday Harbor Laboratories, University of Washington.
- Lophophorates-Protostomes with Non-Trochophore Larvae - Provides a copy of the educational material by T.C. Lacalli of the University of Saskatchewan.
- Absolute Astronomy: Phoronid - Details genera, characteristics, habitat, feeding, and links to related topics.
- Lophophorate Coelomates - Discusses how Phoronida and Brachiopoda differs from Bryozoa and Entoprocta.
- Phoronids (Horseshoe Worms) - Provides information on habitation, body structure, digestion and development of this species.
- UCSC Biology Phylum Phoronida - Contains a lateral view of a generalized sample species. With labeled body parts.
- Phoronis vancouverensis - Provides information on taxonomy, habitation, life history and characteristics of this species.
- Intertidal Marine Invertebrates of the South Puget Island Phylum Phoronida - Discusses the characteristics and reproduction of this species. With photos.
- MJC Marine Bio Phylum Phoronida - Contains pictures of sample species.
- Phylum Phoronida (Phoronids) - Discusses characteristics, reproduction and habitation. With list of sources.
- Featherless Duster Worms and Lampshells - Discusses body structure and internal anatomy of this animal group. With photos.
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Ginkgophyta
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Ginkgo_biloba
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Lycopodiophyta
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