NO. 3556 PORTUNID CRABS—STEPHENSON AND REES 101 
subterminal spines are present on both sides of the pleopod, and the 
convexity of the sides of the penultimate abdominal segment is less 
marked. 
A 34 mm. specimen from “Sta. AT-51; 1957; R. E. Kuntz,” is 
somewhat intermediate between the two forms. There are no spines 
on the inner surface of the pleopod, but the penultimate abdominal 
segment is markedly convex. 
—————~ 
Wy ee 
mM — 
WN 
Ss 
Z 
Vi 
Q 
Ficure 37.—Thalamitoides quadridens A. Milne Edwards, male, Marshalls, Latobak I., 
Sta. 207, Bayer and Zimmerman: a, pleopod; b, abdomen. (Scales=a, 1 mm.;},5 mm.) 
Distrisution.—India to Samoa, including Japan and Australia. 
Genus Thalamitoides A. Milne Edwards, 1869 
Thalamitoides quadridens A. Milne Edwards 
FIGURE 37 
Thalamitoides quadridens A. Milne Edwards, 1869, pp. 147-149, pl. 6, figs. 8-15.— 
de Man, 1887, p. 331.—Nobili, 1906a, p. 212.— Rathbun, 1907, p. 64 (record 
221-520—67 8 
