Balss, 1938
The anterior surface of the carapace is rather well divided into areolae by smooth furrows and provided with a row of hairs just behind the front; those areolae are covered with minute granules which become larger near the front and the antero-lateral borders; a prominent line of granules crosses the anterior part of 1M and 2M respectively, and the another extends forward and inward from the last antero-lateral tooth to the outside of 2M. The front is deflexed and bilobed with a prominent median sinus; it is bordered with granules and most produced just near the sinus. The supraorbital border is also granulated and bears two indistinct notches.
The antero-lateral border is provided with one lobe and the following three teeth excluding the external orbital angle which is less prominent; the first lobe is rounded and granulated, its anterior part being somewhat at lower level and separated by a shallow, narrow bight from the external orbital angle; the following three teeth are pyramid-shaped, granulated and subequal or the hindmost is slightly smaller than the preceedings; those tips are less acuminate, though the sharpness gradually increases posteriorly. The postero-lateral border is nearly straight or only slightly concave in the middle.
The chelipeds are subequal, short and stout; the merus is concealed under the carapace; the carpus is armed with two blunt teeth at its inner angle and covered with rounded granules on its outer surface; the palm is swollen and its outer upper surface is thickly covered with the same granules as those on the antero-lateral surface of the carapace; those granules are nearly without linear arrangements, becoming smaller on its inner and outer lower surfaces; the palm bears a longitudinal furrow on the outer upper surface, which is nearly reached the distal part of the palm and extended back on slightly, occasionally nearly half, to the carpus; in addition, the palm is provided with very indistinct two curved longitudinal furrows on its outer middle surface; the movable finger is granulated on the upper surface at the base, and strongly curved downward and inward, bearing some small teeth near the proximal end of cutting edge; the immovable finger is also curved inward and armed with three teeth on the proximal part of the cutting ege, of which the distal one is the largest.
The ambulatory legs are slender and fringed with sparse hairs and a few granules mainly on the upper borders; the dactylus is provided with numerous short semitransparent spinules on the upper and lower borders. The male abdomen is five-jointed, 3rd to 5th segments being fused except for the short lateral vestiges of incisions.
The carapace is pale vermilion with a pair of longitudinal rather irregular white bands. The upper surface of the palm and the ambulatory legs except for the dactyli are of the same colour as the carapace. Each joint of the ambulatory legs is white. (Takeda & Miyake, 1968a: 3)
Type locality: Apamama and Aranuka, Kiribati.
Range: Réunion (Serène, 1984); Japan - Amami-Oshima and Ishigaki-jima, Okinawa (Takeda & Miyake, 1968a); Kiribati; ? Hawaiian Islands - Oahu (Edmondson, 1951).