FIGURE 5. A–D in Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)

FIGURE 5. A–D, Ptychognathus glaber Stimpson, 1858, female (10.8×13.1 mm), Chichi-jima Island, Ogasawara Islands, CBM-ZC 16568; E, Ptychognathus ishii Sakai, 1939, female (8.6×10.6 mm), Okinawa Island, CBM-ZC 5913. A, carapace with eyes and left antenna, dorsal view (setae on left side of surface omitted); B, left vulva, ventral view; C, left cheliped, chela and carpus, outer view; D, E, pleomeres 3–6 and telson, outer view.