NO. 3556 PORTUNID CRABS—STEPHENSON AND REES 13 
Charybdis bimaculata (Miers).—Sakai, 1939, pp. 410-412, figs. 10, 11—Miyake, 
Sakai, and Nishikawa, 1962, p. 128 (record only). 
Charybdis (Gonioneptunus) subornata (Ortmann).—Leene, 1938, pp. 122-125, figs. 
68, 69. 
Charybdis (Gonioneptunus) whitelegget (Ward).—Leene, 1938, pp. 125-126. 
MareriaLt.—Philippines: Sta. 5391, Tubig Point, Destacado 1., 
12°13/05”N., 124°05’03”E., 118 fm., Mar. 13, 1909, Alb., 1 female 
(15 mm.). 
Remarks.—As indicated by Sakai (1939, pp. 410-412), C. subornata 
is probably a synonym of C. bimaculata. Stephenson, Hudson, and 
Campbell (1957, pp. 504-505) supported this synonymy, adding C. 
whitelegger. The present specimen has long last anterolateral teeth 
as in Leene’s figure (fig. 68) of C. subornata. 
Distrisution.—India and Maldives to Japan and eastern Australia. 
Subgenus Goniosupradens Leene, 1938 
Charybdis (Goniosupradens) erythrodactyla (Lamarck) 
Portunus erythrodactylus Lamarck, 1818, p. 259. 
Thalamita erythrodactyla (Lamarck).—H. Milne Edwards, 1834, p. 464. 
Charybdis (Goniosoma) erythrodactyla (Lamarck).— Rathbun, 1906, p. 872, pl. 4. 
Charybdis (Goniosupradens) erythrodactyla (Lamarck).—Leene, 1938, pp. 134-137, 
figs. 77-80.—Crosnier, 1962, p. 86, pl. 7 (fig. 1). 
Charybdis erythrodactyla (Lamarck).—Sakai, 1939, pp. 408-409, pl. 83 (fig. 1).— 
Holthuis, 1953, p. 6.—Forest and Guinot, 1961, p. 30. 
Matertau.—Marshalls: Outer reef, Namu I., Bikini Atoll, col- 
lected at night, by light, Aug. 7, 1947, F. M. Bayer, 2 males. 
Tuamotus and Societies: Bora Bora, Farepiti Point Sta. 50-57, 
Apr. 23, 1957, Bredin Exped., 1 ovig. female; Sta. 126-57, reef, Nuarei 
Bay, Moorea, May 12, 1957, Bredin Exped., 1 male. 
MEASUREMENTS.—Males, 55-94 mm.; ovig. female, 81 mm. 
DistriBuTIon.—Mauritius and Red Sea to Hawaii, Tahiti, and 
Marquesas, including Japan. Not recorded from Australia. 
Charybdis (Goniosupradens) obtusifrons Leene 
Charybdis obtusifrons Leene, 1936, p. 124, figs. 11, 12.—Sakai, 1939, pp. 409-410, 
pl. 83 (fig. 3). 
Charybdis (Goniosupradens) obtusifrons Leene, 1938, pp. 140-148, figs. 85-87.— 
Sankarankutty, 1961, pp. 123-124.—Crosnier, 1962, pp. 84-85, figs. 146, 
146 bis a-e, pl. 6 (fig. 2). 
Martertau.—Melanesia: Bougainville I., received Jan. 10, 1945, 
W. A. Bartos, 2 males (dried) (8, 13 mm.). 
Remarks.—Because of their fragile state, detailed examination 
was impossible. Compared with Leene’s figures and description, 
the differences in present specimens are: Submedian frontal teeth are 
broader; protogastric ridges are equidistant between frontals and 
