FIGURE 4. Rayllianassa rudisulcus n in Additional record of Rayllianassa amboinensis (de Man, 1888) from Japan, and description of a new species from Okinawa Island, Ryukyu Islands (Crustacea: Decapoda: Axiidea: Callianassidae)

FIGURE 4. Rayllianassa rudisulcus n. sp., holotype, ovigerous female (cl 3.6 mm), CBM-ZC 12361. A, carapace and eyes, dorsal view; B, rostrum and eyes, dorsal view; C, shield on seventh thoracic sternite and coxa of left fourth pereopod, ventral view; D, first and second pleomere, dorsal view; E, third and fourth pleomere, dorsal view; F, fifth pleomere, dorsal view; G, sixth pleomere, telson and right uropod, dorsal view. Scale bars: 1 mm for A, D–G; 0.5 mm for B, C.