Demanietta

Demanietta
Demanietta renongensis
Demanietta suanphung
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Brachyura
Family: Potamidae
Genus: Demanietta
Bott, 1966 
Type species
Potamon (Potamon) manii
(Rathbun, 1904)

Demanietta is a genus of freshwater crabs that belongs to the family Potamidae. Members of this genus can be found in the Indochinese Peninsula of Southeast Asia in countries such as Thailand and Myanmar.

Most of them are found in fast flowing water habitats, giving their common name waterfall crabs or the spectacled waterfall crabs.

Taxonomy

The genus currently contains 13 described species. They are listed below:

Taxonomic history

The genus was established in 1904 by Rathbun with its type species being Demanietta manii. From that point the genus would contain four species (D. manii, D. smalleyi, D. merguensis and D. tritrungensus). In 1999, 10 new species (D. huahin, D. khirikhan, D. lansak, D. nakhonsi and D. suanphung) were described by (Yeo, Naiyanetr & Ng) during revision of the genus. Two more species, D. liui and D. lenya, would be described on 2020.

Thaiphusa sirikit was originally describes as Demanietta sirikit before being moved to its current genus.

References

  1. 1 2 3 4 5 Darren C. J. Yeo, P. Naiyanetr and Peter K. L. Ng (1999). "Revision of the Waterfall Crabs of the Genus Demanietta (Decapoda: Brachyura: Potamidae)". Journal of Crustacean Biology. 19 (3): 530–555. doi:10.2307/1549261. JSTOR 1549261.
  2. ↑ "Spectacled Waterfall Crabs (Genus Demanietta)". iNaturalist. Retrieved 2026-07-08.
  3. 1 2 Bo-Yang Shi, Xiao-Yong Chen, Hong-Ying Sun, Two new species of the freshwater-crab genus Demanietta Bott, 1966 (Decapoda: Brachyura: Potamidae) from southern Myanmar, Journal of Crustacean Biology, Volume 41, Issue 1, March 2021, ruaa091, https://doi.org/10.1093/jcbiol/ruaa091