NO. 3599 PORTUNID CRABS STEPHENSON AND REES 11 



Material examined. — 3 males (14-19.5 mm), additional larger 

 male (fragmented), Sta. No. 21-63. 4 males (12-13.5 mm), 2 females 

 (13, 16 mm), 1 o\ag. female (17 mm) (many specimens fragmented), 

 Sta. No. 202A. 



Trawled, depths from 70 to 106 m. 



Remarks. — Crosnier (1962, fig. 53) has accurately sho^v^l the curved 

 junction, concave distally, between the ultimate and penultimate 

 segments of the male abdomen. Leene (1940, pi. 3) shows a straight 

 junction. 



Distribution. — Laccadives, Ceylon, Philippines, Japan. 



Genus Portunus Weber, 1795 

 Portiinus argentatiis (A. Milne Edwards) 



FiGUEES 2a-c, e~g 



Amphitrile argentafa White, 1847, p. 146 [descriptio nulla]. 



Neptunus argentatus A. Milne Edwards, 1861, pp. 332, 339, pi. 31 (figs. 4, 4a, 4b). 



Neptunus (Amphitrite) argentatus A. Milne Edwards. — Alcock, 1899a, pp. 36- 



7.— Sakai, 1939, p. 391, fig. 5b, pi. 81 (fig. 1). 

 Portunus (Achelous) argentatus (A. Milne Edwards). — Rathbun, 1906, p. 871. — 



Edmundson, 1954, pp. 238-9, figs. 14, 15. 

 Monomia argentata (White, A. M. Edwards). — Barnard, 1950, pp. 156-8, figs. 



27c, 30a-d. 

 Portunus argentatus (A. Milne Edwards). — Stephenson, 1961, pp. 105-6, figs. IF, 



3D, pi. 2 (fig. 2), pis. 4D, 5A.— Crosnier, 1962, pp. 50-1, figs. 71, 75, 77, 



SO, 81, pi. 3 (fig. 1).— Stephenson and Rees, 1967, p. 16. 



Material examined. — 52 males (25.5-34.5 mm), 47 females (23- 

 35 mm), 29 ovig. females (27.5-36.5 mm), 2 Sacculina-in^ested males 

 (32.5, 33 mm), 1 Sacculina-miested specimen (29.5 mm), 1 unsexable 

 specimen ^^ith both branchial cavities swollen with parasites (22 mm), 

 Sta. No. AB 21-63. 3 males (24-32 mm), Sta. No. AB-22. 7 males 

 (26.5-32 mm), 12 females (24.5-31 mm), 1 Sacculina-inlested specimen 

 (30.5 mm), Sta. No. AB-22A. 2 females (19, 22.5 mm), Sta. No. 

 AB 28A. 1 fragmented specimen, Sta. No. AB-47B. 1 male (42 

 mm), Sta. No. AB-49. 1238 males (15-27 mm), 232 females (17.5- 

 44.5 mm), 272 ovig. females (19-26 mm), Sta. No. 202A. 153 males 

 (18.5-32.5 mm), 46 females (16.5-46 mm), 72 ovig. females (21.5- 

 34.5 mm), Sta. No. 202B. 16 males (18.5-40 mm), 11 females 

 (18-23 mm), 7 o^-ig. females (21.5-34.5 mm), Sta. No. 202C. 2 

 males (16.5, 19 mm), 4 females (16-17 mm), 1 ovig. female (27 mm), 

 Sta. No. 203A. 1 female (23 mm), Sta. No. 206A^. 21 males (23.5- 

 30 mm), 4 females (21.5-25 mm), 11 ovig. females (21-29 mm), 

 Sta. No. 266A. 



All trawled, depths from 22 to 196 m, bottoms (where noted) sand 

 with mud, clay, or coral. 



