CETISTACEA OF THE MERGUI ARCHIPELAGO. 253 



its base, wliicli also presents three or four minute spinules along 

 its inner or median margin, does not project beyond the distal 

 end of the penultimate joint, whereas in G. carnifex it reaches 

 to the middle of the terminal joint. The penultimate joint is 

 armed with a minute spinule at the outer angle of its distal end. 

 The two basal joints are very hairy, and the flagella are rather 

 short, being scarcely as long as the cephalothorax. 



The legs are similar to those of C. oequabilis, var. merguiensis, 

 and probably resemble still more those of G. carnifex. The 

 anterior legs are equal and quite similar to those of G. csquahilis, 

 var. merguiensis, even as regards the distribution of the spinules 

 with which the chelipedes are armed, and hairs with which they 

 are covered. In G. carnifex the upper margin of the hands is 

 prominent, Hke a crest, and armed with four or five acute spi- 

 nules. In this species such a crest is not found ; the hands are 

 scarcely more than twice as long as broad, the inner margin of 

 the upper surface of tlie palm is not at all prominent, and armed 

 with three or four spinules which are not larger than those of 

 the rest of the upper surface of the palm. The legs of the 

 second pair are similar to those of G. cequabilis, var. merguiensis, 

 and probably still more resemble those of G. carnifex, Heller. 

 These legs have a completely smooth surface, presenting no other 

 punctations than those in which the short hairs are implanted, 

 and which are rather thinly distributed. The propodite of the 

 left leg of the third pair is a little shorter than that of the 

 right, and a little depressed on its outer surface ; this outer sur- 

 face still appears, however, slightly convex. In G. (Equabilis, 

 var. merguiensis, the outer surface of this propodite is much more 

 depressed ; so that it appears perfectly flattened, and the upper 

 margin of the outer surface is subacute. The dactylopodites 

 finally are comparatively longer than those of G. cequahilis, var, 

 merguiensis, and are scarcely as much compressed ; they termi- 

 nate, as in this species, in curved, black, pointed tips, and are 

 armed, on their under margins, with a row of seven or eight 

 acute spinules. As I have already observed, the legs of the 

 second and of the third pairs are thinly clothed with short, stiff 

 hairs arranged in small tufts ; those of the fourth pair, on 

 the contrary, are densely clothed with much longer hairs along 

 their margins ; and those of the fifth are, again, less hairy. As 

 regards the two or three spinules with which the meropodites are 



