Haswell, 1880
The carapace is nearly naked and distinctly broader, its anterior part in front of the gastric tubercles being sunken somewhat like in another congener, Paratymolus sexspinosus Miers. The anterior end of the supraocular eave is strongly tuberculate. The posterior hepatic tooth is more prominent, rather depressed and directed obliquely forward, while a branchial marginal tubercle is very small. P1 merus is armed with pubescence. The carpus bears a curved long spine at its inner angle as usual, but some additional tubercles are present on the outer surface of the carpus and palm, viz., two each on the carpus and palm. In addition, the upper border of the palm is terminally produced into a strong tubercle. The species differs from Paratymolus pubescens Miers in contour of the carapace and armature of the chelipeds. (Takeda, 1977a: 121)
Type locality: Port Denison, Queensland, Australia.
Range: Japan - Tanegashima and Ogasawara-shoto (Takeda, 1977a); Australia - Port Denison, Queensland (Haswell, 1880a), Torres Strait (Miers, 1884a).