NO. 3556 PORTUNID CRABS—STEPHENSON AND REES 65 
Forest and Guinot, 1961, pp. 32-33.—Crosnier, 1962, pp. 128-130, figs. 
219 bis a-b, pl. 11 (fig. 2). 
Materiau.—Philippines: Sta. 5159, Tinakta I., Sulu Archipelago, 
Tawitawi Group, 5°11’50” N., 119°54’ E., Feb. 21, 1908, Ald., 1 
male, 1 female. 
Australia: Great Barrier Reef, Apr. 8-May 29, 1952, John K. 
Howard, 1 male. 
Marianas: Saipan I., in coral heads, 1945, A. H. Banner, 1 female; 
Aganta Bay, Guam, Sta. 85-x-44, May 20, 1945, R. H. Baker, 1 
female; Agfayan Bay, Guam, 135/RHB 150, July 7, 1945, R. H. 
Baker, 1 female; Y259, Gillifitz, Yap I., sand, rocky coral covered 
reef, received 1952, Hiatt, 1 male. 
Samoa: Apia, at mouth of river, June 1, 1902, Alb., 2 females, 1 
ovig. female; Apia, outer reef, June 27, 1902, Alb., 2 males, 1 ovig. 
female; Apia, outer reef, June 27, 1902, Alb., 1 juv; Apia, coral reef, 
July 1902, Alb., 1 female; Apia, outer coral reef at low tide, July 1, 
1902, Alb., 2 males; Pago Pago, no. 10, August 1902, Alb., 8 males, 
2 females, 3 ovig. females; Pago Pago, August 1902, Alb., 2 males. 
Fanning Is.: Inner Lagoon, Fanning Is., Dec. 16, 1913, Fred and 
Charlotte Baker, 1 ovig. female. 
Tuamotus and Societies: Sta. 84a-57 Huahine, head of Baie de 
Maroe, from branching coral, Apr. 30, 1957, Bredin Exped., 2 males. 
MEASUREMENTS.—Males, 10-40 mm.; females, 18-53 mm.; ovig. 
females, 26-46 mm. 
Remarks.—The fourth anterolateral tooth is smaller than the fifth 
in small specimens, which hence key out as 7. prymna. ‘They are 
distinguished from JT. prymna by the form of the front and inner 
orbital angles. In the Australian specimen the second of the normal 
anterolateral teeth is missing, and the first is greatly enlarged. 
DistRisuTION.—Mauritius to Australia and Central Pacific Is. 
Thalamita corrugata Stephenson and Rees 
FIGURE 23 
Thalamita cooperi Stephenson and Hudson, 1957, pp. 331-332, pls. 1 (fig. 4), 10C 
[in part, some specimens of 7’. demani Nobili, q.v.]. 
Thalamita corrugata Stephenson and Rees, 1961, pp. 421-425, figs. 1A, C, EH, F, 
2A-C.—Guinot, 1962, p. 9. 
Not Thalamita cooperi Borradaile, 1902, pp. 206-207, fig. 37.—Sankarankutty, 
1961a, p. 122, fig. 113. 
MareEriAL.—Tuamotus and Societies: Sta. 10a-57, Tickahau 
| Lagoon, Apr. 11, 1957, Bredin Exped., 2 males (6, 8 mm.), 2 females 
(5, 6 mm.). 
_ Remarxs.—In general facies, the present material agrees in all 
respects with the females from Queensland, described by Stephenson 
and Hudson (1957) as 7. cooper. 
| 221-520—67 5 
