172 ZOOLOGISCHE MEDEDEELINGEN — DEEL IV. 



granules, especially towards the much curved upper border; a groove 

 runs parallel with and near to the articulation with the carpopodite, at 

 inner and outer surface of the arm, and the distal external angle of the 

 latter has a somewhat prominent, obtuse tooth. The wrist is short, somewhat 

 inflated, with a smooth, finely-pitted upper surface and an obtuse inner 

 angle; from this angle a row of granules runs backward along the under 

 border of the inner surface of the wrist. The chela (f. 1 b) is large, much 

 inflated ; the height is equal to the horizontal length of the palm ; outer 

 and inner surface of the latter are convex; the outer surface is smooth, 

 finely pitted everywhere, and moreover provided with the same 

 longitudinal rows, as are observed in P. granulosus, but in the present 

 species they are not formed by granules, but by two very inconspi- 

 cuous folds of the surface, the inferior row is somewhat stronger 

 and is continued till the tip of the immobile finger, following the same 

 elegant, concave curve as the inferior margin of the palm and that of 

 the immobile finger ; the inner surface of the palm has a longitudinal row 

 of 5 — 6 large granules in the middle and, besides, some similar granules 

 beneath the row, towards the articulation with the wrist; the fingers are 

 short, curved inwards, and are not excavated and spoon-shaped at the 

 tip, unlike those of the preceding species; the mobile finger is about as 

 long as the horizontal length of the palm, with a slight curve in the 

 distal half, but somewhat concave near the base, roughly pitted like the 

 immobile finger, and provided along the cutting margin with a row of 

 6 — 7 obtuse teeth, of a chalk-white colour, and of subequal size; the 

 cutting margin of the immobile finger is very broad, and along the outer 

 margin there is a row of 6 chalk-white teeth, of very unequal size: the 

 first two, near the base are very small, the next two very large, cone- 

 shaped, between these and the tip there are again two much smaller 

 teeth, the tip itself has a very short horny margin. 



As in the preceding species the walking legs are very short; the two 

 middle pairs, that are the longest, somewhat exceeding the maximum 

 breadth of the carapace, the last pair by far the shortest; the meropodites 

 somewhat more than twice as long as broad, rugose at upper surface, 

 and, like the carpopodites, quite hairless. In all the legs, but the last, 

 the propodite is somewhat longer than the slightly-curved dactylus; in the 

 last pair these joints are of equal length, and the propodite is broadened, 

 so that it assumes the appearance of a swimming-paddle ; the distal part 

 of the inner margin of the propodite in all the legs and the base of the 

 inner margin of the dactylus are fringed with very short hairs, intermingled 

 with a few longer hairs; this character becomes more distinct in the 

 hinder legs. Again, as in P. granulosus, the upper hind margin of the 





