NO. 3556 PORTUNID CRABS—STEPHENSON AND REES 15 
tuberculate, latter variable, either diffuse or tuberculate; postero- 
laterals well developed, sometimes merging with posterior meso- 
branchials. Two additional small, paired, granular patches present, 
one midway between epibranchials and metagastrics, the other 
midway between anterior mesobranchials and cardiacs. 
Figure 1.—Portunus acerbiterminalis, new species, male holotype: a, pleopod; b, pleopod 
tip, under surface; c, abdomen. (Scales=a, 1 mm.; b, 0.1 mm.;¢, 5 mm.) 
Chelipeds: Short, stout, right stouter than left, with squamiform 
markings on under surface. Posterior border of arm with two well- 
developed spines, anterior border with four spines. Wrist with 
well-developed spines on inner and outer surfaces. Hand with well- 
developed shelflike carina separating upper from inner surface, and 
bearing on each left chela a terminal spine (none on right chela). T'wo 
carinae on outer surface of hand, both regularly granular, lowermost 
very prominent. Well-developed granular carina on inner surface of 
hand. Fingers short, stout but thin. 
