NO. 3556 PORTUNID CRABS—STEPHENSON AND REES 83 
Japan: Mogi, near Nagasaki, summer of 1900, Dr. D. S. Jordan and 
Mr. J. O. Snyder, 1 female. 
MEASUREMENTS.—Males, 7-25 mm.; females, 8-13 mm.; juv., 8 
mm. 
REMARKS.—Stephenson (1961a) noted that Sakai’s (1939) figure 
16 does not show the most distal bristles on the inner side of the male 
Ficure 30.—Thalamita parvidens (Rathbun), male, Philippines, Mariveles, Reese: a, 
pleopod; b, pleopod tip, upper surface; ¢, abdomen. (Scales=a, 1 mm.; b, 0.5 mm.; c, 
5 mm.) 
pleopod. The specimen here figured is roughly intermediate between 
Sakai’s figure and Stephenson’s (1961a) figure 4B. Crosnier’s (1962) 
figures 185 and 186 show numerous long spines on both sides of the 
tip of the appendage, more than possessed by any of the present 
specimens. 
Crosnier’s figure (fig. 190) of the male abdomen shows a straight- 
sided ultimate segment. In the larger of the present specimens and 
