Revision of the sesarmid crab genera Labuanium Serène and Soh, 1970, Scandarma Schubart, Liu and Cuesta, 2003 and Namlacium Serène and Soh, 1970 (Crustacea: Decapoda: Brachyura: Sesarmidae), with descriptions of four new genera and two new species Author Naruse, Tohru Author Ng, Peter K. L. text Journal of Natural History 2020 J. Nat. Hist. 2020-08-12 54 7 - 8 445 532 http://dx.doi.org/10.1080/00222933.2020.1763491 journal article 55729 10.1080/00222933.2020.1763491 fb05d004-0f2d-44da-b91e-b6e8304ab2a5 1464-5262 4609148 414B8DAA-584F-4070-A355-83B583D0D017 Scandarma raymondi Ng, 2013 Scandarma raymondi Ng, 2013 , p. 289 , figs 1–3 [ type locality: Kinabalu , Sabah , Malaysia ]. Material examined Holotype . ZRC 2013.0614 , male 11.9 × 12.9 mm , Kota Kinabalu , Sabah , Malaysia , coll. R. Goh , 1 November 1990 . Diagnosis Carapace squarish, external orbital angle triangular, lateral margins with 2 small crenulations; 2 pairs of postfrontal lobes present, lateral lobes slightly exceeding mesial lobes anteriorly; anterior margins of all lobes far from frontal margin in dorsal view. Palm of male chela swollen; outer surface granulated, granules smaller on lower part, with small median protuberance on proximal part of sloping smooth area around bases of fingers; upper surface with 1 straight, longitudinally traversing, not densely packed row of relatively small granules, and with a few short, oblique rows on inner side. Immovable finger almost straight, gradually tapering towards tip, occlusal margin lacking marked proximal elevation, lined with small teeth and 1 large tooth over proximal third, followed distally by similar combination of small teeth and 1 large tooth, 1 large subdistal tooth. Movable finger curved, occlusal margin lined with 2 proximal large teeth, followed distally by small teeth, and 1 subdistal tooth; inner side of upper margin sparsely lined with acute granules, granules indistinct distally; subdistal tooth of movable finger fitting between 2 subdistal teeth of immovable finger when closed. Male pleonal somite 3 widest, somite 4 abruptly narrowed distally, lateral margins of somites 3–5 clearly concave. G1 short, almost straight, stout, narrowed medially, distal end with relatively narrow, anterolaterally directed corneous process. Colouration In preservative: carapace yellowish-brown, chelipeds yellow just after preservation in alcohol ( Ng 2013 , p. 293). Distribution Known only from the type locality, Kinabalu , Sabah , Malaysia ( Ng 2013 ). Remarks See Ng (2013 , p. 293) and ‘Remarks’ for Scandarma splendidum . Ecological note The only known specimen was collected from inside a mixed forest in a town centre near a river less than 2 km from the sea ( Ng 2013 ).