i5 



broad as the merus; the carpus is inserted near the antero-external angle of the latter. The 

 exognath is wholly exposed in normal position, it does not reach exactly as far forward as 

 the merus. 



The sternum is nearly circular, very much vaulted longitudinally, especially posteriorly, 

 and concave in transverse direction ; the grooves between the segments do not reach the cavïty, 

 in which the abdomen of the cf fits. The latter occupies the whole space between the bases 

 of the last pair of legs; the first two segments are apparently fused and fixed, the next is very 

 short, and the abdomen reaches its greatest breadth at the union of the 4 th and 5 th segment; 

 from here it gradually tapers forward, but enlarges again, though very slightly, near the base 

 of the terminal segment, which is as long as broad at the base and longer than all other segments, 

 the tip is much rounded (fig. 3 c) and reaches to the level of the base of the chelipeds. 



The chelipeds of the cf are very robust, thick and scarcely shorter than the anterior 

 walking legs, viz. i a / s times the length of the carapace. Immediately anterior to the base a 

 thick patch of hairs is observed, which hairs are of the same structure as noted above; similar 

 hairs are scattered all over the chelipeds themselves, and the palnis are wholly invested 

 w i t h s u c h hairs, b o t h i n s i d e and o u t s i d e , so that they are looking like little muffs 

 (fig. 3). The meropodite is without sharp borders, spineless, and widening distally; the wrist is 

 rather large, . with numerous transverse rugosities above, a patch of hairs in the middle of the 

 under surface, and the inner angle not at all produced; the palm is much inflated (though the 

 soft fur makes it look still thicker and higher), not quite as high as long, about as long as 

 the fingers and quite smooth, as far as could be made out without removing the covering; the 

 borders are rounded, not sharp. The fingers are straight, gaping at the base, finely serrated 

 in the proximal half of the inner margin, and more coarsely so in the distal half, where the 

 serrations fit closely together. 



The ambulatory legs are slender and rather long, the penultimate pair being the longest 

 (not quite twice the length of the carapace) and the last pair the shortest ; this hind pair is 

 implanted somewhat higher up. At the base, viz. at the margins of the basipodite, especially 

 dorsally, and at the upper margin of the carpopodite, we observe the same curious, club-shaped, 

 feathered hairs as are mentioned above: the meropodite is slender, cylindrical, about 5 times 

 as long as broad, without spines or teeth. but with a tuft of hairs at the distal end, and 

 sparsely beset with feathered hairs, that also occur on the two next joints; the carpo- and 

 propodite together are slightly longer than the meropodite; the dactyli are long, slender, falci- 

 form, slightly shorter than the preceding joint, very gradually tapering, so that the breadth 

 near the base only slightly exceeds that near the tip, the tip is acute and curved, and the 

 inner margin of the dactylus is provided, like that of Halicarcinus, with a continuous row of 

 denticles, between which are scattered somewhat longer hairs-, the two terminal denticles, near 

 the tip of the dactylus, are by far the largest and pointing in different directions. 



I have little doubt that the specimen here described belongs to Hymenicus cdwardsi^ 

 but nevertheless it must be noted, that Filhol mentions two sharp teeth at either side of the 

 carapace and that the rostrum is called trilobate (the lateral lobes being most inconspicuous) in 

 the text, though the figure corresponds quite well with the one here given. The general shape 



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