Terrathelphusa Ng, 1989

Ng, Peter K. L., , Martyn E. Y. Low, Clark, & Paul F., 2022, Historical notes on various collectors of unidentified freshwater crabs (Crustacea: Decapoda: Brachyura) from the Malay Peninsula and Borneo, with descriptions of two new species of Isolapotamon Bott, 1968 Potamidae), Raffles Bulletin of Zoology 70, pp. 550-571 : 561

Genus Terrathelphusa Ng, 1989

Type species. Geothelphusa kuhli De Man, 1883 .

Remarks. Terrathelphusa was established for several terrestrial species from Java and Borneo which had been assigned to Perbrinckia Bott, 1969 (cf. Ng, 1989). The diversity of the genus in Borneo is high and nine species have been described from Sarawak, Sabah and Brunei in recent years ( Ng, 1997; Ng & LWH Tan, 2015; Grinang & Ng, 2015b). Unfortunately, male characters, especially the G1 structure, are important for accurate species delineations in this genus. The absence of adult males and a precise provenance for the present specimens makes the determination of the following specimens provisional at best.