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narrower, the three spines are moreover more strongly curved upward. These sHght differences 

 are, in my opinion, to be regarded as individual. Measured at the upper side, — not along 

 the margins — the visible part of first antennular article appears twice or almost twice 

 as long as the second, which is a little longer than the third and the stylocerite just reaches 

 beyond the first article; in this species the visible part of first article is longer with regard to 

 the second than in Syn. Gravieri. 



The two spines of the basicerite are turned outward and the upper appears in a lateral 

 view almost half as long as the lower; carpocerite little longer than the antennular peduncle, 

 reaching with scarcely half the length of 'the third article beyond it. The blade of the scaphocerite 

 just exceeds the second antennular article and the terminal spine that projects by one-third of 

 its length beyond the blade, slightly surpasses the antennular peduncle and is almost as 

 long as the carpocerite ; in the ova-bearing, adult female from Stat. 51 it is even just as 

 long, but in this female the blade reaches almost the end of the antennular peduncle. 



The external maxillipeds exceed the carpocerite by one-third or two-fifths of their 

 terminal joint. 



Telson shorter with regard to the width of the pxjsterior margin than that of Syn. 

 Gravieri, the telson being 2,7 — 2,75-times as long as that margin is broad, in the specimen 

 from Stat. 279 this number is even 2,44; outer angles of the posterior margin acute, though 

 not prominent, the rfiargin itself prominent in the middle as in Syn. Gravieri. Spinules of the 

 upper surface 0,14 — 0,1 6 mm. long, anterior pair situated just in front of the 

 middle, posterior pair one and a half, in the male from Sapeh-Strait even more than twice 

 as far distant from the posterior margin as from the anterior pair. 



Upper margin of brachium of large cheliped with a small, curved spine at the apex, 

 chela, as in Syn. Gravieri, with a spinous process at the distal end of the palm, but the fingers 

 are a little longer. Small chela also as in Syn. Gravieri, the measurements and projaortions 

 are indicated in the Table. 



Carpus of second legs as in this species, first segment slender, 6-times as long as 

 thick distally and distinctly longer than the following segments taken together. 



As regards the legs of the third and fourth pair, I refer to the Table, but I wish to 

 remark the following. In both legs the merus is 4-times as long as broad; along the middle 

 of the merus of the third legs are inserted four or five small spinules, from 0,04 to 0,14 mm. 

 long, whereas one observes two or three similar spinules on the merus of the fourth pair. 

 Propodus as in Syn. Gravieri, but, like the merus, usually a little more slender. Uactylus about 

 one-fourth the propodus, broad at its base, its width being here just half as long as the straight 

 distance between the tip of the ventral hook and the proximal end of the anterior margin. 

 Ventral hook perpendicular to the posterior border, 3-times as long as broad near 

 the insertion of the dorsal hook and slightly tortuous; dorsal hook much shorter and 

 narrower than the other, its length one-third that of the ventral hook, which at its base 

 appears somewhat more than 3-times as thick as the dorsal hook. 



Ova comparatively large, 0,75 mm. long. 



The male from Banda is 12 mm. long, the ova-bearing female from Stat. 51 12,5 mm. 



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