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New Species of Freshwater Crab from Venezuela and Redescription of Microthelphusa Rodriguezi Pretzmann, 1968 (Brachyura: Pseudothelphusoidea: Pseudothelphusidae)

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AbstractA new species of freshwater crab Microthelphusa viloriai, from the Andean range of Venezuela is described and illustrated. The type species of the genus, M. rodriguezi is redescribed on the following examination of the single specimen so far known. Data on the geographical and altitudinal distribution of the species of Microthelphusa are also presented.

Affiliations: 1: Centro de Ecología, Instituto Venezolano de Investigaciones Científicas, Apartado 21827, Caracas 1020-A, Venezuela (


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1. Bott R. 1967 "Flusskrabben aus Brasilien und benachbarter Gebiete Potamocarcinus (Kinsleya) Ortmann, 1897 (Crustacea, Decapoda)." Senckenbergiana Biologica Vol 36 229 242 pl. 28-35
2. Bott R. 1970 "Bemerkungen zu einigen Süsswasserkrabben (Crustacea: Decapoda)." Senkenbergiana Biologica Vol 51 355 361 fig. 1-16
3. Pretzmann G. 1967 "Uber einige südamerikanische Süsswasserkrabben (Pseudothelphusidae). Vorläufige Mitteilung." Entomologisches Nachrichtenblatt Wien Vol 14 23 26
4. Pretzmann G. 1968 "Neue Südamerikanische Süsswasserkrabben der Gattung Pseudothelphusa." Entomologisches Nachrichtenblatt Wien Vol 15 1 15
5. Pretzmann G. 1971 "Fortschritte in der Klassifizierung der Pseudothelphusidae." Sitzungsberichten der Österreichischen Akademie der Wissenchaften, Mathematisch Naturwissenshaftliche Klasse (1) Vol 179 15 24
6. Pretzmann G. 1972 "Die Pseudothelphusidae (Crustacea, Brachyura)." Zoológica Vol 42 (120) pt 1 15 182
7. Rathbun M. J. 1893 "Descriptions of new species of American freshwater crabs." Proceedings of the United States National Museum Vol 16 649 661
8. Rathbun M. J. 1905 "Les Crabes d'eau douce (Potamonidae)." Nouvelles Archives Du Muséum D'Histoire Naturelle Paris (4) Vol 7 159 321
9. Rodríguez G. 1966 "The freshwater crabs of the genus Pseudothelphusa from northern Venezuela and Trinidad." Zoologische Mededelingen Leiden Vol 41 111 135 7 pls
10. Rodríguez G. 1980 "Description préliminaire de quelques espèces et genres nouveaux de Crabes d'eau douce de l'Amérique tropicale." Bulletin du Museum National d'Histoire Naturelle Paris 4e sér Vol 2 889 894
11. Rodríguez G. 1982 "Les crabes d'eau douce d'Amerique." Famille des Pseudothelphusidae. Fauna Tropicale XXII. Office de la Recherche Scientifique et Technique Outre-Mer, París, 223 pp. + [i]
12. Rodríguez G., Estevez A. E. 1972 "Una nueva especie de cangrejo de agua dulce (Decapoda, Pseudothelphusidae) del centro de Venezuela." Memorias de la Sociedad de Ciencias Naturales La Salle Caracas Vol 32 133 137
13. Rodríguez G., Campos M. R. 2000 "Microthelphusa sucreensis, a new species of Pseudothelphusidae (Decapoda), with notes on abnormalities in the sexual appendages of fresh-water crabs." Journal of Crustacean Biology Vol 20 (special number 2) 332 336
14. Smalley A. E. 1964 "A Terminology for the gonopods of the American river crabs." Systematic Zoology Vol 13 28 31

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