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long as the second ; the anterior margin of the first and of the second article is finely den- 

 ticulate, but the small teeth are worn off at the tips. Outer flagellum composed of 9 articles 

 before the bifurcation ; excepting the first these articles are broader than long. Stylocerite 

 reaching beyond the middle of third article, with the extremity rather blunt. Different from 

 the specimen described by Coutière, the carpocerite is as long as the antennular peduncle, 

 not longer and hardly one and a half as long as broad, when looked at from below ; the 

 terminal spine of the scaphocerite is twice as long as broad at its base and as long as the 

 antennular peduncle, while the scale is a little shorter. 



Merus of second legs 4,64-times as long as wide. First carpal segment 5,3-times as 

 long as thick at the distal end, distinctly longer than the sum of the three following, the 

 proportion being as 1 : 0,8 ; first segment 1,26 mm. long, the second 0,32 mm., the third 

 0,22 mm., the fourth 0,48 mm.; chela 0,95 mm. long, fingers just as long as the palm. 

 Proportion between the length of the carpus and the width of the fourth segment 9,3. Accor- 

 ding to Stimpson and to Coutière, the first segment should be as long- as the sum of the 

 following and the chela as long as the third and the fourth segments taken together ; in 

 Coutière's figure, however, the first segment appears a little longer than the sum of the 

 following and the chela a little longer than the third and the fourth segment combined. 



The legs of the third pair seem to accord with Coutière's specimen, excepting the 

 merus which in his specimens is described as being 3,7-times as long as wide, but the distal 

 extremity and the small tooth near it are exactly similar. The propodus bears 9 spinules 

 instead of 12, that increase in length from the proximal to the distal extremity, from 0,07 mm. 

 to 0,175 mm. The dactylus, measured to the extremity of the dorsal hook, appears a little 

 shorter than one-third of the propodus and just 3-times longer than wide at the base ; ventral 

 hook much shorter than the other. 



In the specimen from Stat. 213 the carapace is less strongly curved above and the 

 rostrum which is acute and extends also to the end of the second antennular article, appears 

 1,6-times as long as broad at its base and the lateral margins, which on their posterior half 

 are almost parallel, rejoin the supra-orbital margin by a concave curve of short radius in such a 

 manner as to form an acute prominence, the remnant of the "épines supra-cornéennes", which 

 are so strongly developed in Ar. Borradailei Cout.; in the much older specimen from Stat. 78 

 this prominence has almost fully disappeared. The antero-lateral spine of the orbits (épine 

 extra-cornéenne) is larger than in the other specimen and reaches almost to the end of the 

 eyes. The third antennular article is one and a half as long as the second and just as long as 

 the second with the visible part of the first taken together; the anterior margin of the first 

 and of the second article is finely denticulate, the small teeth are acute, whereas in the other 

 much older specimen they are more or less worn off. The outer flagellum still only consists of 6 

 articles before bifurcation and these articles are a little longer than thick. Carpocerite one 

 and a half as long as thick, as long as the antennular peduncle, not longer. 



Second legs a little less slender than in the other specimen and differing by the first 

 carpal segment being as long as the sum of the following, not longer, and by the second 

 and the third segments being equal. First carpal segment 0,63 mm. long, 4-times 



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