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PROCEEDINGS OF THE NATIONAL MUSEUM 



Figure 2. — First male pleopods: a, Portunus argenlatus (205 mm, Sta. 202B), pleopod 

 close to form b; h, P. argenlatus (20 mm, Sta. 202 B), relatively straight pleopod; c, P. 

 argenlatus (20.5 mm, Sta. 202A), pleopod approaching form a; d, Thalamita gracilipes 

 (10.5 mm, Sta. B-16) whole pleopod. Tips of pleopods a-d, respectively: e-h. (Scales: 

 a-d, 0.5 mm; e~h, 0.1 mm.) 



