NO. 3556 PORTUNID CRABS—STEPHENSON AND REES Sl 
Anterolateral teeth: Five. First stoutest and bluntest, remainder 
sharp with fourth the smallest. 
Carapace: Relatively long (B/L=1.3), covered with fine pile through 
which coarsely granular ridges are evident. Frontals, small elevated 
eranular patches; protogastrics curved, slightly irregular; mesogastrics 
concave anteriorly, distinctly separated. Conspicuous patches oppo- 
site second and fourth anterolateral teeth. Epibranchials smoothly 
curving, terminating abruptly with small coarsely granular subtermi- 
nal patch. Short continuous metagastric. Two broadly separated 
eardiacs. One pair of mesobranchials slightly in front of cardiacs. 
Posterior border of carapace apparently smooth, actually micro- 
scopically granular. 
Ficure 29.—Thalamita mitsiensis Crosnier, male, Philippines, Sta. 5159, 4/b.: a, pleopod; 
b, pleopod tip, upper surface; c, abdomen. (Scales=a, 1 mm.; b, 0.5 mm.; c, 1 mm.) 
Basal antennal joint: Shorter than width of orbit (0.8 times) 
and bearing short, steeply elevated crest, covered with small, rounded, 
close-packed granules. 
Chelipeds: Left only present. Spinous, coarsely granular, and 
hirsute with squamiform markings on under surface of hand. An- 
terior border of arm with two long distal spines and shorter proximal 
spine. Wrist with three usual spines on outer surface and longer 
than usual spine at inner surface. Outer border of hand with two 
distinct coarsely granular carinae. Upper surface bearing four sharp 
spines excluding that at wrist articulation, and without obvious 
carinae. Inner surface with central carina granular, remainder 
coarsely granular. Fingers long, sharp, strongly carinated. 
