38 THE BRACHYURA. 
Platypodia anaglypta (Heller). 
Lophactaea anaglypta Alcock, 1898, 67, 102. 
Fakarava, Paumotus; shoal in lagoon; Oct. 11, 1899; 1 ¢. 
Fakarava, Paumotus; outer reef; Oct. 12, 1899; 19°. 
Platypodia digitalis, sp. nov. 
Pl. 1, Fig. 6; Pl. 9, Bigs. 25a. 
Carapace narrower than in most Indo-Pacific species of this genus. Inter- 
regional furrows filled with a short tomentum; a few long hairs scattered 
on the carapace. Granules of surface small, scabrous, and sparsely distrib- 
uted. Surface behind middle of cardiac region smooth. A median furrow 
forms two lobules on the broad part of the mesogastric area; protogastric 
area without longitudinal division. A thin, light-colored rim borders the 
front, orbits, and antero-lateral margins, and is marked by a closed fissure 
on the median line, two on the orbit and three on the sides. 
Chelipeds heavy, unequal. Outer surface of palms covered with sharp 
tubercles arranged somewhat in rows; upper edge not cristate, but armed 
with 5 or 6 tubercles. Fingers very short and stout; pollex shorter than 
its width at base; tips very stumpy in the large claw, slenderer and more 
acute in the small claw; prehensile edges of both fingers with a broad tooth ; 
inner and outer surfaces with one or two tufts of hair. On account of the 
short thumb, the movable finger is more vertical than commonly in the 
genus. 
Ambulatory legs of moderate width, upper edges acute, but not cristate. 
Dimensions : — Adult 2, length 8.4 mm., width 11.5 mm. 
Distribution :— 
Papeete, Tahiti; reef; Nov. 28, 1899; 1 9. 
Kusaie, Carolines; 1900; 1¢ type (Cat. No. 32,846, U.S. N. M.). 
This species belongs to the granulosa group of Alcock (1898, 67, 100), in : 
which the upper border of the hand is not cristate, but P. digitalis is sepa-~ | 
rated from others of the group by having the pollex broader than long, the 
protogastric lobes not longitudinally divided, the ambulatory legs not eristate. | 
+ lla ne A ig Tie. 
Zosimus aeneus (Linnaeus). 
Zozymus aeneus Alcock, 1898, 67, 104. 
Makemo Id., Paumotus; Oct. 20, 1899; 19. 
