Resources

Books

Storch, Volker, and Hilke Ruhberg. "Onychophora." In Microscopic Anatomy of Invertebrates. Vol. 12, Onychophora, Chilopoda and Lesser Protostomata, edited by Frederick W. Harrison and Mary E. Rice. New York: Wiley-Liss, 1993.

Periodicals

Brockman, C., R. Mummert, H. Ruhberg, and V. Storch. "Ultrastructural Investigations of the Female Genital System of Epiperipatus biolleyi (Bouvier, 1902) (Onychophora, Peripatidae)." Acta Zoologica 80 (1999): 339-349.

Elliot, S., N. N. Tait, and D. A. Briscoe. "A Pheromonal Function for the Crural Glands of the Onychophoran Cephalofovea tomahmontis (Onychophora: Peripatopsidae)." Journal of Zoology (London) 231 (1993): 1-9.

Monge-Nagera, J., and J. P. Alfaro. "Geographic Variation of Habitats in Costa Rican Velvet Worms (Onychophora: Peripatidae)." Biogeographica 71, no. 3 (1995): 97-108.

Monge-Nagera, J., Z. Barrientos, and F. Aguilar. "Behavior of Epiperipatus biolleyi (Onychophora: Peripatidae) Under

Laboratory Conditions." Revista de Biologia Tropical 41, no. 3 (1993): 689-696.

Reid, A. L. "A Review of the Peripatopsidae (Onychophora) in Australia, with Descriptions of New Genera and Species, and Comments on Peripatopsid Relationships." Invertebrate Taxonomy 10, no. 4 (1996): 663-936.

Reid, A. L., N. N. Tait, and D. A. Briscoe. "Morphological, Cytogenetic and Allozymic Variation Within Cephalofovea (Onychophora: Peripatopsidae) with Descriptions of Three New Species." Zoological Journal of the Linnean Society (London) 114 (1995): 115-138.

Storch, V., R. Mummert, and H. Ruhberg. "Electron Microscopic Observations on the Male Genital Tract, Sperm Development, Spermatophore Formation, and Capacitation in Epiperipatus biolleyi (Bouvier) (Peripatidae, Onychophora)." Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 92 (1995): 365-379.

Sunnucks, P., and N. Tait. "Tales of the Unexpected." Nature Australia 27, no. 1 (2001): 60-69.

Amanda Louise Reid, PhD

Phylum Tardigrada Number of families 20

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Microscopic, aquatic, multicellular, segmental animals with four pairs of legs

Photo: Colored scanning electron micrograph of a water bear (Echiniscus testudo) in its crypto-biotic tun, or barrel, state. (Photo by Andrew Syred/Science Photo Library/Photo Researchers, Inc. Reproduced by permission.)

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