(Sakai, 1938)
The carapace is narrower than that of Pseudomicippe nipponica but the arrangement and number of tubercles found on the dorsal surface almost agree in both cases. The pseudorostral spines are slender and somewhat longer than those of P. nipponica, they are not so strongly deflexed and their inner border not marked by a lobular angle at all. No preocular spine but the posterior angle of the supraocular eave is marked by a lobular tooth. The anterior surface of sternum of male is naked and the canaliculation on either side at the base of the cheliped is very shallow and indistinct.
Chelipeds are very stout; arm is cylindrical and its superior border armed with two to five tubercles, the wrist being sharply carinate on the outer border, having a deep notch near the base. The palm is markedly swollen and vermiculated by pale whitish colouration on purplish red even in dried specimen. The fingers gape in the proximal half, the immovable finger hollowed in the proximal half and is distally armed with six to seven denticles; the movable finger has an obtuse tooth near the middle and its distal borders are armed with six to seven denticles.
The ambulatory legs are very slender, the diametre of each segment almost half that of Pseudomicippe nipponica, the specimens of both sexes of almost equal size being compared.
In the shape of the pseudorostral spines, this species is related to Zewa banfieldi McCulloch, but the last named species has only four gastric tubercles in the median line and the distal tooth of the basal segment of antenna very small and projecting side-ways; chelipeds also less markedly tuberculated and not carinated. Zewa varians (Miers) is a quite different species. (Sakai, 1938)
Type locality: Gobo, Kii Peninsula, Japan.
Range: Japan - Kii Peninsula and Kagoshima Bay (Sakai, 1938a, 1976), Hachijo-jima, Kii Minabe, Gobo, and Tosa Bay (Muraoka, 1998); Korea - Cheju-do (Kim, 1970, 1973).