FIGURE 43. Hymenosomatidae. A, B in Significance of the sexual openings and supplementary structures on the phylogeny of brachyuran crabs (Crustacea, Decapoda, Brachyura), with new nomina for higher-ranked podotreme taxa

FIGURE 43. Hymenosomatidae. A, B, Limnopilos naiyanetri Chuang & Ng, 1991, Thailand, observed in aquarium in Singapore: (A) crawling; B, male mating with an ovigerous female (photographs by R. Yeo, courtesy of P.K.L. Ng); C, Amarinus lacustris (Chilton, 1882), male 4.7 × 4.7 mm, New Zealand, Oratia stream: largely exposed, white, flabelliform coxae of mxp3 (ZRC2010.0238). Photographs by J.C. Mendoza.