Komai et al., 1995
Carapace subquadrate; front wide, more than 0.2 times as wide as carapace, very slightly constricted at bases of ocular peduncles; lower orbital border bearing some lobules on lateral part in males; antero-lateral teeth broad based, rectangular; branchial region devoid of conspicuous longitudinal ridges or clumps of granules; intestinal ridge absent. Postero-median margin of epistome more or less convex, supported by sharp median ridge of anterior buccal cavity. Ocular peduncles short and stout, cornea reaching base of external orbital tooth. Females with telson relatively wide (3-4 times as wide as long): distolateral margins straight, basal margin slightly convex. Third maxilliped with merus somewhat shorter than ischium, both merus and ischium well sculptured. In males, palms of chelae bearing inferior ridge on outer surface; fingers moderately short, fixed finger not or very slightly deflexed, armed with differentiated tooth on cutting edge; merus armed with stridulating crest on proximal part of anterior margin. In females, palms of chelae bearing distinct inferior ridge, but lacking inferior row of setae. Pereiopod relatively stout; merus of third and fourth pereiopod armed with subdistal tooth overhanging gradually delimited subdistal groove. (Komai et al., 1995)
Species treated:
Macropthalmus boteltobagoe (Sakai, 1939)
Macropthalmus erato (de Man, 1887)
Macropthalmus quadratus A. Milne Edwards, 1873