404 DK. J. G. DE MAN ON CEUSTACEA CHIEFLY 



spines, preceded by a very small, acute tooth ; these spines are a little smaller than those 

 of the outer border of the merus, and decrease a little in length from the posterior to the 

 anterior. In the male from Kadsiyama the outer border of the carpus carries two spines, 

 which conform to Ortmann's description, and they are also preceded by a very small 

 acute tooth. The slender peduncle of the exopodite reaches a little beyond the merus. 



In the male from the Inland Sea the chelipeds are a little unequal, one being 20 mm. 

 long, the other 18 mm. : they agree with Ortmann's tig. 10. The dactylus of the larger 

 chela carries a moderately strong, subacute tooth at one-third of its length from the 

 articulation, and between this tooth and the tip are seen 25 small obtuse or subacute 

 teeth ; the immobile finger has only small teeth, no stronger ones, as also the fingers of 

 the smaller leg. 



Tlie three following legs are also characteristic. The meropodites of the second pair 

 (PI. 31. fig. 15) are five times as long as broad, and their upper margin is armed, along its 

 whole length, with 11-12 strong sharp teeth nearly of the same size ; the lower margin is 

 also a little denticulate, and terminates, at the distal end, in a sharp spine which slightly 

 projects beyond the rounded extremity of this joint. The outer margin of the carpus is 

 armed with 5-6 sharp spines, nearly of the same size as those of the merus; the spine at 

 the far end is a little larger than the preceding. The propodites, one-fourth shorter than 

 the meropodites and about six times as long as broad, carry, on the proximal half of their 

 upper border, three or four spines, which are a little smaller than those of the merus, and 

 their lower margin is beset with six movable spines, which have nearly the same size as 

 those of the upper margin. Tlie terminal joints, little more than half as long as the pro- 

 l)odites, end in a curved claw, while their lower border carries six movable spines, which 

 gradually increase in length from the first to the sixth. The upper border of the mero- 

 podites is furnished with setae, which are partly plumose or ciliate; at the base of 

 each spine, on the posterior surface, is a long hair and one or two shorter hairs near 

 it. The posterior surface of the meropodites shows transverse rows of short setae and 

 near the lower margin longer hairs. The following joints are. also setose. The legs of 

 the third and fourth pairs agree with those described, but the spines on the upper border 

 of the meri are, in the legs of the fourth pair, comparatively smaller. 



The male from the Inland Sea is of a pale yellowish red, the rostrum is whitish, like 

 the lateral teeth of the carapace ; the ciliated ridges on the carapace and the segments of 

 the abdomen are marked with small red spots. The mero- and propodites of the second 

 to fourth legs are adorned each with two wine-red rings. 



Gal. orientalis, Stimps., from Hong Kong is, no doubt, a different species. The 

 carapace is described as " brevissime pubescens," whereas in Gal. acanthomera the cilia 

 are long. The lateral margins of the carapace carry six teeth, in Gal. acanthomera 

 nine ; the first lateral tooth of the rostrum of Gal. orientalis is minute, the chelipeds 

 " crassiusculi," the chela depressed, the dactylus bidentate, all characters not observed in 

 Gal. acanthomera. The ujiper border of the meropodites is described as " confertim 

 spinulata, spinulis minutis aequalibus," that of Gal. acanthomera, however, as " spinulis 

 robustis ad 11 armato." 



Geographical Distribution. — Bonin Islands (Stimpson) ; Japan, Kadsiyama, Sagami 

 Bay, Maizuru, Tanngava, Kagoshima {Ortmann). 



