396 



articulation of the dactylus. Lower border rather sharp, especially that of the immobile finger 

 and fringed also with long hairs at the inner side. Outer face of the palm without crests or 

 ridges, fiattened or very slightly concave on the outer face of the immobile finger; palm finely 

 granular, the granulation reaching to the middle of the fingers. Immobile finger a little longer 

 than the dactylus. 



Only one female with eggs, long i8mm., namely that from Stat. 313, bears the large 

 cheliped. Merus 3,4-times as long as broad, the two lower margins as in the male, the upper 

 margin without a spinule at the far end. Chela comparatively smaller than in the male, 5,8 mm. 

 long (palm 3,7 mm., fingers 2,1 mm.) and 1,55 mm. high, for the rest similar to it. Of the 

 small cheliped of the male the merus is 3,5-times as long as broad; upper margin ending in 

 a small spinule, infero-external margin finely serrulate, while the infero-internal bears 5 small, 

 movable spinules and terminates in a small, acute tooth. The chela closely resembles that ot 

 de Haan's A. rapax (J. G. de Man, in: Trans. Linn. Soc. London. Ser. 2, Vol. IX, PI. XXXIII, 

 Fig. 52), it is but little shorter than the large chela, being 7 mm. long. The palm that measures 

 one-third of the total length, appears one and a half as long as broad and nearly as much 

 compressed as the other chela ; the upper border, fringed at the inner side with long hairs to 

 the end of the dactylus, presents 110 transverse groove. Of the gaping and tapering fingers 

 that are fringed with hairs on their prehensile edges, the immobile appears a little broader at 

 its base than the dactylus. 



In the female the merus of smaller cheliped resembles that of the male, but the upper 

 margin is unarmed; the chela differs only by the palm being slightly longer in proportion to 

 the fingers; the palm, indeed, is 1,9 mm. long, the fingers 3,1 mm. Like in the male, the palm 

 appears finely granular under a lens. 



The carpal segments of the second legs are, in the male from Stat. 279, 1,4 mm., 1,6 mm., 

 0,6 mm., 0,56 mm. and 0,76 mm. long; the chela is 1,4 mm. long (palm 0,6 mm., fingers 0,8 mm.). 

 The second segment, 0,27 mm. thick in the middle, appears 6-times as long as thick. In 

 the younger specimen from Stat. 313 the carpal segments are 1,25 mm., 1,5 mm., 0,5111111., 

 0,48111111. and 0,6 mm. long; the chela is 1,25 mm. long (palm 0,52 mm., fingers 0,73 mm.). 

 In the young female, long 15111111., from Stat. 133 the carpal segments of the left leg are 

 0,92 mm., 0,88 mm., 0,35111111., 0,34111111. and 0,5111111. long, the chela 1,08 mm. long (palm 

 0,52 mm., fingers 0,56 mm.); in the right leg they are 0,88 mm., 0,84111111., 0,34 mm., 0,32 mm. 

 and 0,48 mm. long, chela 1,03 mm. (palm 0,47 mm., fingers 0,56 mm.). The second segment 

 appears but little — one-seventh to one-fifth — longer than the first, in young 

 specimens even slightly shorter, but in the species referred by Coutière to A. rapax it is 

 twice as long as the first. 



Ischium of third and fourth legs with a small, movable spine at the base. Merus of third 

 legs unarmed, 5-times as long as broad. The propodus which is one and a half as long as the 

 unarmed carpus, is slightly curve d and shows a rather slender form ; it presents its greatest 

 width of 0,46 mm. not far from the carpal articulation, it is 6,5-times as long as broad and it 

 narrows a little distally; there are 3 small, equal spines on the proximal half of the 

 lower margin and one of the same length at the distal extremity, both margins are moreover 



264 



