The vacuolar-type H(+)-ATPase (V-ATPase) has been implicated in osmoregulatory ion uptake across external epithelia of a growing variety of species adapted to life in fresh water. In the present study, we investigated whether the V-ATPase may also function in a euryhaline species that tolerates brackish water (8 salinity) but not fresh water, the shore crab Carcinus maenas. cDNA coding for the ...

A new species of potamid freshwater crab, Tiwaripotamon vixuyenense sp. nov., is described from caves in Ha Giang, northern Vietnam. The new species can be distinguished from congeners by a suite of characters, including the relatively small epibranchial tooth, more slender ambulatory legs and a proportionately stout male first gonopod. Molecular data using the mitochondrial cytochrome oxidase ...

The identity of the common lowland freshwater crab in western Sarawak, Borneo, East Malaysia, Parathelphusa oxygona Nobili, 1901 (family Gecarcinucidae), is clarified. The species is redescribed and figured, and its taxonomy discussed. Specimens from western Kalimantan, Borneo, Indonesia, which have been referred to P. oxygona are here referred to a new species, Parathelphusa nobilii. The new s...

A new species of freshwater crab, Spiralothelphusa gibberosa n. sp. is described from rice fields near Kizhoor in Thrissur district of Kerala in southern India. The new species is easily differentiated from its congeners by its first male pleopod (G1), which has a long, less strongly twisted terminal segment and distal portion of subterminal segment in addition to a setose hump on the outer mar...

Paragonimiasis is an important cause of pulmonary disease worldwide. It results from an infection with Paragonimus, a parasite that reproduces through a complex life cycle involving snails, crustaceans, and mammals. Humans acquire the disease by ingesting uncooked freshwater crab or crayfish. Paragonimus species are distributed globally, and the disease is well known in endemic regions of Asia ...

A Jiew freshwater crab, h'csonna dotpin'tmm sp. ji.h is described from Jamaica. The number of known Jamaican e-jidteinic Sesairriinfle increases thereby tu> eigln. Half of the American species of .Vmnwfl feriown fit present are mct&mic in Jamaica. The new species in locally restricted to the slopes of toe Dolphin Head Mountain in western Jamaica. It jwobahiy evolved when sea-level fllJCHJiiiiou...

For the first time haematological studies on freshwater crab P. masoniana (Henderson) has been carried out in Jammu, India. The aim of studies were to determine various type of hemocytes, their total and differential count as well. Based on morphological studies of hemocytes under microscope three types of haemocytes were identified viz., Hyalinocytes (H), Semigranulocytes (SG) and Granulocytes...

A new freshwater crab is described from a montane area in northern Taiwan based on morphological characters and molecular evidence. Geothelphusa cilan sp. nov., from the Cilan Forest, situated on the boundary of Hsinchu and Yilan (= Ilan) counties, is close to G. monticola Shy, Ng & Yu, 1994, and G. takuan Shy, Ng & Yu, 1994, but can be distinguished by its male first gonopod (G1) and the ratio...

A new genus and species of freshwater crab, Yuebeipotamon calciatile gen. n., sp. n., is described from southern China. While the carapace features are superficially similar to species of Sinopotamon Bott, 1967, Longpotamon Shih, Huang & Ng, 2016, and Tenuilapotamon Dai, Song, Li, Chen, Wang & Hu, 1984, the new genus possesses a distinctive combination of carapace, ambulatory leg, male thoracic...

the Endemic Taiwanese Freshwater Crab Geothelphusa chiui Minei, 1974 (Crustacea: Brachyura: Potamidae), with Notes on the Genetic Diversity of Geothelphusa from Eastern Taiwan Peter K. L. Ng1, Hsi-Te Shih2,*, Tohru Naruse3, and Jhy-Yun Shy4 1Tropical Marine Science Institute and Department of Biological Sciences, National University of Singapore, Singapore 119260, Republic of Singapore 2Departm...