Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

A new genus and species of freshwater crab (Decapoda, Pseudothelphusidae) from the Tapajós River, a southern tributary of the Amazon River in Brazil

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Crustaceana

A new genus and species of pseudothelphusid crab of the tribe Kingsleyini Ortmann, 1897, from the Tapajós River, a southern tributary of the Amazon River basin in the state of Pará, Brazil, is described and illustrated. Michaelthelphusa tuerkayi gen. et sp. nov. is characterized by the male first gonopod possessing marginal and lateral sutures fused at the distal third of the stem and the merged portion strongly twisted towards the lateral side; an apex transversally expanded along caudal-cephalic axis, with a well-developed, but low, somewhat depressed, apical plate; apical plate with spine-like outgrowth cross overlapping the spine-like projection of the mesial process. Moreover, the relationship of the new genus and species with other pseudothelphusid genera from the Amazon basin is discussed.

Affiliations: 1: Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, 2936, 69.067-375 Manaus, AM, Brazil


Full text loading...


Data & Media loading...

1. Abell R., Thieme M. L., Revenga C., Bryer M., Kottelat M., Bogutskaya N., Coad B., Mandrak N., Contreras Balderas S., Bussing W., Stiassny M. L. J., Skelton P., Allen G. R., Unmack P., Naseka A., Ng R., Sindorf N., Robertson J., Armijo E., Higgins J. V., Heibel T. J., Wikramanayake E., Olson D., López H. L., Reis R. E., Lundberg J. G., Sabaj Pérez M. H., Petry P., 2008. "Freshwater ecoregions of the world: a new map of biogeographic units for freshwater biodiversity conservation". BioScience, Vol 58: 403-414. [Crossref]
2. Bott R., 1967. "Flusskrabben aus Brasilien und benachbarter Gebiete. Potamocarcinus (Kingsleya) Ortmann 1897 (Crustacea, Decapoda)". Senckenbergiana biologica, Vol 48: 301-312.
3. Bott R., 1969. "Die Süsswasserkrabben Süd-Amerikas und ihre Stammesgeschichte. Eine Revision der Trichodactylidae und der Pseudothelphusidae östlich der Anden (Crustacea, Decapoda)". Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft, Vol 518: 1-94.
4. Bott R., 1970. "Betrachtungen über die Entwicklungsgeschichte und Verbreitung der Süßwasserkrabben nach der Sammlung des Naturhistorischen Museums in Genf/Schweiz". Revue Suisse de Zoologie, Vol 77: 327-344, pls. 1-2. [Crossref]
5. Cumberlidge N., Álvarez F., Villalobos J. L., 2014. "Results of the global conservation assessment of the freshwater crabs (Brachyura, Pseudothelphusidae and Trichodactylidae): the Neotropical region, with an update on diversity". Zookeys, Vol 457: 133-157. [Crossref]
6. Goulding M., Barthem R., Ferreira E., 2003. The Smithsonian atlas of the Amazon. (Smithsonian Institution Press, Washington, DC).
7. Hales J., Petry P., 2015. Freshwater ecoregions of the world. 320: Tapajos-Juruena. Available online at (accessed 2 March 2016).
8. Magalhães C., 1986. "Revisão taxonômica dos caranguejos de água doce brasileiros da família Pseudothelphusidae (Crustacea, Decapoda)". Amazoniana, Vol 9: 609-636.
9. Magalhães C., 2003. "The occurrence of freshwater crabs (Crustacea: Decapoda: Pseudothelphusidae, Trichodactylidae) in the rio Xingu, Amazon Region, Brazil, with description of a new species of Pseudothelphusidae". Amazoniana, Vol 17: 377-386.
10. Magalhães C., 2005. "A new species of freshwater crab (Crustacea: Decapoda: Pseudothelphusidae) from the southeastern Amazon Basin". Nauplius, Vol 12: 99-107 [2004].
11. Magalhães C., 2009. "A new species of freshwater crab of the genus Fredius Pretzmann, 1967 from the middle Amazon River Basin, Brazil (Crustacea: Decapoda: Pseudothelphusidae)". Proceedings of the Biological Society of Washington, Vol 122: 81-86. [Crossref]
12. Magalhães C., 2010. "A new species of freshwater crab of the genus Microthelphusa (Decapoda, Pseudothelphusidae) from a tepui in the Serra do Aracá, state of Amazonas, Brazil". In: Fransen C., de Grave S., Ng P. (eds.), Studies on Malacostraca: Lipke Bijdeley Holthuis memorial volume. Crustaceana Monographs, 14 : 453-460.
13. Magalhães C., 2016. "A tribute to Michael Türkay (3 April 1948 – 9 September 2015): contributions and legacy of a lifelong study on New World decapods, and personal impressions". Nauplius, Vol 24: e2016012, 17 pp. DOI:10.1590/2358-2936e2016012.
14. Magalhães C., Abrunhosa F. A., Pereira M. O., Melo M. A., 2005. "New records of Fredius denticulatus (H. Milne Edwards, 1853) and F. reflexifrons (Ortmann, 1897), and the eastern limits of the distribution of pseudothelphusid crabs (Crustacea: Decapoda) in Brazil". Acta Amazonica, Vol 35: 93-96. [Crossref]
15. Magalhães C., Campos M. R., Collins P. A., Mantelatto F. L., 2016. "Diversity, distribution and conservation of freshwater crabs and shrimps in South America". In: Kawai T., Cumberlidge N. (eds.), A global overview of the conservation of freshwater decapod crustaceans: 303-322. (Springer, Cham). [Crossref]
16. Magalhães C., Pereira G., 2007. "Assessment of the decapod crustacean diversity in the Guayana Shield region aiming at conservation decisions". Biota Neotropica, Vol 7: 111-124. [Crossref]
17. Magalhães C., Rodríguez G., 2002. "The systematic and biogeographical status of Fredius reflexifrons (Ortmann, 1897) and Fredius fittkaui (Bott, 1967) (Crustacea: Brachyura: Pseudothelphusidae) from the Amazon and Atlantic Guianas river basins". Acta Amazonica, Vol 32: 677-689.
18. Magalhães C., Sanches V. Q. A., Pileggi L. G., Mantelatto F. L., 2014. "Morphological and molecular description of a new species of Fredius (Decapoda: Pseudothelphusidae) from Rondônia, southern Amazonia, Brazil". In: Yeo D. C. J., Cumberlidge N., Klaus S. (eds.), Advances in freshwater decapod systematics and biology. Crustaceana Monographs, 19 : 101-114. [Crossref]
19. Magalhães C., Türkay M., 1996. "Taxonomy of the Neotropical freshwater crab family Trichodactylidae II. The genera Forsteria, Melocarcinus, Sylviocarcinus, and Zilchiopsis (Crustacea: Decapoda: Brachyura)". Senckenbergiana biologica, Vol 75: 97-130.
20. Magalhães C., Türkay M., 2010. "A new freshwater crab of the genus Brasiliothelphusa Magalhães & Türkay, 1986 from Rio Aripuanã, southern Amazon Region, Brazil (Crustacea: Decapoda: Pseudothelphusidae)". Nauplius, Vol 18: 103-108.
21. Milne Edwards H., 1853. "Mémoire sur la famille des ocypodiens". Annales des Sciences Naturelle, Zoologie, Vol 20: 163-228.
22. Nobili G., 1896. "Viaggio del Dott. A. Borelli nella Republica Argentina en el Paraguay. XIX. Crostacei Decapodi". Bollettino dei Musei di Zoologia ed Anatomia comparata della R. Università di Torino, Vol 11(222): 1-4.
23. Ortmann A., 1893. "Die Dekapoden-Krebse des Strassbourg Museums, mit besonder berücksichtigung der von Herrn Dr. Döderlein bei Japan und bei den Liu-Kiu-Inseln gesammelten und zur Zeit im Strassburger Museum aufbewahrten Formen. VII Theil Abtheilung: Brachyura (Brachyura genuina Boas) II. Unterabtheilung: Cancroidea, 2 Section: Cancrinea, 1. Gruppe: Cyclometopa". Zoologische Jahrberichter, Vol 7: 411-495.
24. Ortmann A., 1897. "Carcinologische Studien". Zoologische Jahrbücher, Abteilung für Systematik, Geographie and Biologie der Tiere, Vol 10: 258-372.
25. Pedraza M., Martinelli Filho J. E., Magalhães C., 2015. "A new species of the genus Kingsleya from rio Xingu, and range extension for Kingsleya junki (Crustacea: Decapoda: Pseudothelphusidae), freshwater crabs from southern Amazon Basin, Brazil". Zoologia, Vol 32: 41-46. [Crossref]
26. Pedraza M., Tavares M., 2015. "A new species of freshwater crab of the genus Kingsleya Ortmann, 1897 (Crustacea: Brachyura: Pseudothelphusidae) from Amazonia, Brazil". Zootaxa, Vol 4032: 444-450. [Crossref]
27. Randall J. W., 1840. "Catalogue of the Crustacea brought by Thomas Nuttall and J. K. Townsend, from the west coast of North America and the Sandwich Islands, with descriptions of such species as are apparently new, among which are included several species of different localities, previously existing in the collection of the Academy". Journal of the Academy of Natural Sciences of Philadelphia, Vol 8: 106-147, pls. 3-7.
28. Rathbun M. J., 1905. "Les crabes d’eau douce (Potamonidae)". Nouvelles Archives du Muséum d’Histoire Naturelle, Paris, Vol 7(4): 159-321, pls. 11-22.
29. Rathbun M. J., 1906. "Les crabes d’eau douce (Potamonidae)". Nouvelles Archives du Muséum d’Histoire Naturelle, Paris, Vol 8(4): 33-122.
30. Rodríguez G., 1980. Description préliminaire de quelques especes et genres nouveaux de Crabes d’eau douce de l’Amérique tropicale (Crustacea: Decapoda: Pseudothelphusidae). Bulletin du Muséum nationale d’Histoire naturelle, 4e sér., 2 Section A (3): 889-894.
31. Smalley A., 1964. "A terminology for the gonopods of the American river crabs". Systematic Zoology, Vol 13: 28-31. [Crossref]

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Crustaceana — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation