326 



26 



Camptandrium paludicola RaHibun. 



Camptandrium paludicola Rathbun, Proc. Biol. Soc. Washington, XXII, 109, 1909. 



Immature female. Surface uneven, regions well marked, and ornamented with 

 a few tubercles regularly placed : two transversely on the cardiac region, one on 

 the intestinal region, four small in a square on the mesogastric region, one on each 

 protogastric region, two diagonally at the inner part of the branchial region. Width 

 of front one-third the greatest breadth of the carapace; lower edge visible from 

 above, faintly bilobed ; the two superior lobes are separated from each other and 

 fi'om the margin of the orbit by a deep furrow. The inner margin of the orbit is 



Fig. 9. Camptandrium paludicola, type 9, 5-3 mm. wide: a, dorsal view; 6, maxilliped. 



oblique, the posterior margin nearly transverse, the outer angle an acutely pointed 

 tooth which forms one of three large antero-lateral teeth. The first interval is 

 wider than the second; the carapace is widest between the tips of the teeth of the 

 third pair; behind, and at the base of, the third tooth, a much smaller tooth. 

 Postero-lateral margin longer than antero-lateral. 



Chelipeds feeble, about as long as carapace, subcylindrical. Subterminal spine 

 on outer margin of arm. Wrist elongate. Palms over twice as long as wide. 

 Fingers as long as palm, narrowly gaping, broadly hollowed at tips. Legs with 

 the merus joints a little dilated, and bearing a triangular spine on the distal third 

 of the anterior border. Third pair two and a half times as long as carapace; 

 second pair not much shorter than the third; first and fourth pairs of subequal 

 length. Dactyli about three-fourths as long as their respective propodi, slightly 

 curved. Legs crossed by broken dark-colored bands. 



Length of immature female 43 mm., width 53 mm. 



Type locality. — Mangrove swamp, Lem Ngob; XII. 23, 24 or 27; one 

 immature female (soft shell), and one young, only 1-5 mm. long. 



This species is distinguished from the type species, C. sexdentatum (Smithson. 



