10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



Charybdis {Goniohellenus) vadorum (Alcock). — Chopra, 1935, p. 493, text-fig. 13, 

 pi. 9 (fig. 2). — Leene, 1938, pp. 114-7, figs. 63-5. — Stephenson 'and Rees, 

 1967, p. 12. 



lArchias sexdentatus Paulson, 1875, p. 56, pi. 8 (fig. 3-3b).— NobUi, 1906, p. 198 

 (fide Leene, 1938). 



Material examined. — 2 ovig. females (ca. 21.5, ca. 24 mm) (ceph- 

 alothorax only), Sta. No. AB 41-63. 4 males (22-23.5 mm), 2 females 

 (21, 24 mm), Sta. No. AB 41-A. 3 males (21-25.5 mm), 1 ovig. 

 female (24 mm), Sta. No. AB 42-63. 



All trawled, depths from 29 to 46 m. 



Remarks. — Certain differences between Leene's (1938) descrip- 

 tion and figures have been noted by Stephenson and Rees (1967). 

 In addition, the frontal teeth are more rounded than Leene figured. 



Distribution. — Red Sea and Persian Gulf to Hong Kong. 



Charybdis variegata (Fabricius) 



Portunus variegatus Fabricius, 1798, p. 364. 



Charybdis {Charybdis) variegata (Fabricius). — Leene, 1938, pp. 84-8, figs. 44, 

 45.— Stephenson, Hudson, and Campbell, 1957, p. 503, fig. 3C, pi. 3 (fig. 2).— 

 Sakai, 1939, p. 406, fig. 9a, pi. 47 (fig. 4); 1965, p. 121, pi. 59 (fig. 2).— Rees 

 and Stephenson, 1966, pp. 39-40. 



Material examined. — 1 male (31.5 mm), Sta. No. AB 46-63. 



Probably trawled, depth 23-25 m. 



Distribution. — Persian Gulf to northern Australia. 



Charybdis species 



Material examined. — Female 15.5 mm, Sta. No. 218-A. 



Trawled, depth 79-84 m, bottom sandy. 



Remarks. — This specimen, which is a soft, possibly badly pre- 

 served female, has an eared postlateral junction and a basal antennal 

 joint that permits the flagellum to lie in the orbit. These are the 

 diagnostic features of the subgenus Gonionepiunus, but the specimen 

 does not resemble any of the known forms ^^-ithin this subgenus and 

 possibly is O. hoplites. 



Charybdis species 



The folloAnng specimens were not identifiable beyond generic level: 

 1 yg. (ca. 3.5 mm), Sta. No. 25 IB. 1 badly fragmented specimen, 

 Sta. No. 268A. 



Genus Lupocycliis Adams and White, 1849 



Lupocyclus philippinensis Semper 



Lupocyclvs philippinensis Semper, in Nauck, 1880, p. 68. — Leene, 1940, pp. 

 174-6, fig. 5, pi. 3.— Stephenson and Campbell, 1960, p. 109 [in key].— 

 Crosnier, 1962, pp. 40-1, figs. 49, 51, 53, 56, 57, pi. 2 (fig. 1). 



