Potamon fluviatilis, copyright Fabio Liverani.

Belongs within: Gecarcinucidae.
Contains: Potamonautidae.

The Potamoidea are a group of freshwater and semi-terrestrial crabs found in tropical and subtropical regions of the Old World. Members are characterised by males having the distal section of the second gonopods forming a closed tube.

See also: Crabs in rivers, crabs in trees.

    |--Sundathelphusidae H86
    |    |--Perithelphusa borneensis (von Martens 1868) H86
    |    |--Sundathelphusa tenebrosa Holthuis 1979 H86
    |    `--Holthuisana Bott 1969 H86
    |         `--H. alba Holthuis 1980 H86
    `--Potamidae [Sinopotamidae, Thelphusidae] BS05
         |  i. s.: Cerberusa Holthuis 1979 H86
         |           |--C. coeca Holthuis 1979 H86
         |           `--C. tipula Holthuis 1979 H86
         |         Paratelphusula Alcock 1909 (see below for synonymy) BS05
         |           |--*P. dayana (Wood-Mason 1871) (see below for synonymy) BS05
         |           |--P. calvum (Alcock 1909) [=Potamon (Paratelphusula) calvum] BS05
         |           |--P. crenulifera (Wood-Mason 1871) (see below for synonymy) BS05
         |           |--P. feae (de Man 1898) [=Parathelphusa feae] BS05
         |           |--P. fungosum (Alcock 1909) [=Potamon (Paratelphusula) fungosum] BS05
         |           |--P. martensi (Wood-Mason 1875) (see below for synonymy) BS05
         |           |--P. panningi (Bott 1966) [=Potamon (Spinopotamon) panningi, Acanthopotamon panningi] BS05
         |           `--P. woodmasoni (Rathbun 1905) [=Potamon (Parathelphusa) woodmasoni] BS05
         |         Himalayapotamon Pretzmann 1966 BS05
         |           |--*H. atkinsoniana (Wood-Mason 1871) (see below for synonymy) BS05
         |           |--H. emphysetum (Alcock 1910) (see below for synonymy) BS05
         |           `--H. sunkoshiense Brandis & Sharma 2005 BS05
         |         Potamiscus Alcock 1909 [incl. Ranguna Bott 1966, Terrapotamon Ng 1986] BS05
         |           |--*P. annandalii Alcock 1909 [=Potamon (*Potamiscus) annandalii] BS05
         |           |--‘Potamon’ abbotti Rathbun 1898 [=*Terrapotamon abbotti] BS05
         |           |--P. koolooense (Rathbun 1904) [incl. Potamon babaulti Bouvier 1918] BS05
         |           |--P. rangoonensis Bott 1966 [=*Ranguna rangoonensis] BS05
         |           `--P. sikkimensis (Rathbun 1905) (see below for synonymy) BS05
         |         Parapotamon de Man 1907 BS05
         |           `--*P. spinescens (Calman 1905) BS05
         |         Stoliczia BS05
         |         Archithelphusa punctulatus (Heer 1865) BWW93
         |         Pseudopotamon speciosum (Capellini 1874) BWW93
         |--+--Socotra pseudocardisoma DC06
         |  `--+--Johora tiomanensis DC06
         |     `--Geothelphusa DC06
         |          |--G. albogilva DC06
         |          `--G. dehaanii (White 1847) H86
         `--+--Potamonautidae DC06
            `--+--Isolapotamon [Isolapotamidae] DC06
               |    |--I. collinsi Holthuis 1979 H86
               |    `--I. consobrinum DC06
               `--Potamon Savigny 1816 DC06, BS05 [incl. Thelphusa Latreille 1819 BS05]
                    |--P. fluviatilis DC06
                    |    |--P. f. fluviatilis H86
                    |    `--P. f. algeriense Bott 1967 H86
                    |--P. rangoonense Rathbun 1904 BS05
                    `--P. sivaleuse G88

*Himalayapotamon atkinsoniana (Wood-Mason 1871) [=Telphusa atkinsoniana, Potamon (*Himalayapotamon) atkinsonianum; incl. P. (H.) atkinsonianum janetschekii Pretzmann 1966] BS05

Himalayapotamon emphysetum (Alcock 1910) [=Potamon atkinsonianum var. emphysetum; incl. P. (Himalayapotamon) atkinsonianum gordoni Pretzmann 1966, P. atkinsonianum var. ventriosum Alcock 1910] BS05

Paratelphusula Alcock 1909 [incl. Acanthopotamon Kemp 1918, Lobothelphusa Bouvier 1917, Spinopotamon Bott 1966] BS05

Paratelphusula crenulifera (Wood-Mason 1871) [=Paratelphusa crenulifera, Hydrothelphusa (*Lobothelphusa) crenulifera] BS05

*Paratelphusula dayana (Wood-Mason 1871) [=Paratelphusa dayana, Potamon (*Paratelphusula) dayanum, Telphusa (Parathelphusa) dayana] BS05

Paratelphusula martensi (Wood-Mason 1875) [=Paratelphusa martensi, *Acanthopotamon martensi, Potamon (Acanthotelphusa) martensi, Po. (Parathelphusa) martensi, Po. (*Spinopotamon) martensi] BS05

Potamiscus sikkimensis (Rathbun 1905) [=Potamon (Geothelphusa) sikkimensis, Potamon (Potamiscus) sikkimense; incl. Potamon tumidulum Alcock 1909] BS05

*Type species of generic name indicated


[BS05] Brandis, D., & S. Sharma. 2005. Taxonomic revision of the freshwater crab fauna of Nepal with description of a new species (Crustacea, Decapoda, Brachyura, Potamoidea and Gecarcinucoidea). Senckenbergiana Biologica 85: 1–30.

[BWW93] Briggs, D. E. G., M. J. Weedon & M. A. Whyte. 1993. Arthropoda (Crustacea excluding Ostracoda). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 321–342. Chapman & Hall: London.

[DC06] Daniels, S. R., N. Cumberlidge, M. PĂ©rez-Losada, S. A. E. Marijnissen & K. A. Crandall. 2006. Evolution of Afrotropical freshwater crab lineages obscured by morphological convergence. Molecular Phylogenetics and Evolution 40 (1): 227–235.

[G88] Gray, J. 1988. Evolution of the freshwater ecosystem: the fossil record. Palaeogeography, Palaeoclimatology, Palaeoecology 62: 1–214.

[H86] Holthuis, L. B. 1986. Decapoda. In: Botosaneanu, L. (ed.) Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) pp. 589–615. E. J. Brill/Dr W. Backhuys: Leiden.

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