NO. 3556 PORTUNID CRABS—STEPHENSON AND REES 103 
Thalamitoides tridens spinigera Nobili—Balss, 1924, p. 5; 1938, p. 35 (under 
T. tridens typica). 
MareriAL.—Philippines: Sta. 5159, Tinakta I., Sulu Archipelago, 
Tawitawi Group, 5°11’50”N., 119°54’E., Feb 21, 1908, Alb., 1 female. 
= 
a 
Ficure 38.—Thalamitoides tridens A. Milne Edwards, largest male, Samoa, Apia, July 1902, 
Alb.: a, pleopod; b, abdomen. (Scales=a, 1 mm.; b, 5 mm.) 
Marshalls: Rongelap Lagoon, 1 mi. W. of Rongelap I., 20 fm., 
June 21, 1946, Taylor, 1 female. 
Samoa: Apia, at mouth of river, June 1902, Alb., 4 males, 3 females; 
Apia, outer coral reef at low tide, July 1, 1902, Alb., 2 females; Apia, 
coral reef, July 1902, Alb., 3 males, 1 female; Pago Pago, August 1902, 
Alb., 3 males, 2 females, 2 ovig. females. 
