Abstract
A new species of terrestrial potamid crab, Malayopotamon lipkei sp. nov., is described from Gunung Slamet, Central Java, Indonesia. This new species is similar to M. granulatum (De Man, 1892), but can be differentiated by several characters, viz. the carapace with longer anterolateral serrated crest margins, the relatively larger and the denser granules on branchial and gastric regions, more prominent epigastric lobes, males with proportionately broadly abdominal somites III-V, more granulated chelipeds, and distal segment of G1 bent inwards at about 30 ◦ . Epigastric lobes distinct, granulated, no distinct crista, not continuous with postorbital cristae; postorbital cristae prominent, continuous with base of epibranchial tooth; cervical and H-shaped gastric grooves distinct. The carapace of M. lipkei sp. nov. is relatively more granulated, especially on the gastric and branchial regions, with the granules proportionately larger and denser, and a mix of ovate and rounded granules. Keywords:Gunung Slamet; M. granulatum ; Malayopotamon lipkei
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