242 



The rostrum, 3-times as long as wide at its base and reaching almost the end of basal 

 antennular article, agrees, like also the lateral spines, with the quoted Fig. 7 : the rostrum appears 

 more slender than in the typical species, Fig. 7', and than in the variety halmaher ensis. The 

 visible part of the first antennular article appears, however, distin ctly long er than in Fig. 7 

 and nearly as long as the second and the third taken together; the second 

 article is slightly longer than wide and the third slightly shorter than the second, the stylocerite, 

 finally, extends only to the middle of the second article. It is especially on account of the different 

 shape of this peduncle that the identification with the variety prolatus remains doubtful. 



The carpocerite which surpasses the antennular peduncle almost by two thirds the distal 

 article, is 3,7-times as long as wide and the lower spine of the basicerite appears a little shorter 

 than the stylocerite; the scale, hardly as broad as in Fig. 7, is as long as the antennular 

 peduncle and the terminal spine that distinctly surpasses the carpocerite, is slightly curved inward, 

 while it appears quite straight in Fig. 7. 



Telson 2,7-times as long as the posterior margin is broad, in the typical species 2,5- 

 times, but a little less wide anteriorly, the proportion between the greatest width and that of 

 the posterior margin being 1,92; the outer angles of the posterior margin are acute, though 

 quite short. Of the spinules of the upper surface that are 0,12 mm. long and a little farther 

 remote from the lateral margins than in the typical species, the anterior pair is situated more 

 forward, anterior to the middle, the proportion between the length of the telson and 

 the distance of that pair from the posterior margin being 1,84; the proportion, finally, between 

 the distances of both pairs from the posterior margin is expressed by the number 1,65. 



The large cheliped seems to agree with that of the typical species, but the merus which 

 is 2,56-times as long as wide, bears a small, acute tooth at the apex of the upper margin-, the 

 small cheliped is missing. Merus of second legs 6-times as long as wide; first segment (1,1 7 mm.) 

 of the carpus 5,8-times as long as thick, a little longer than the sum (1 mm.) of the following; 

 the three following segments slightly decrease in length from the second to the fourth, fifth 

 segment a little longer than the second and the third taken together; chela (0,84 mm.) slightly 

 shorter than the four last segments combined. 



Following legs as in the typical species. The relative dimensions of the third pair are: 

 merus 2,1 ; carpus 1 ; propodus 2. Merus 3,8-times, propodus 6,7-times as long as wide, the 

 propodus with 6 spinules long 0,13 — o, 16 mm. Dactylus two-sevenths of the propodus and 2,5- 

 times as long as wide near the articulation, when measured from the proximal extremity of the 

 anterior margin to the tip of the ventral hook, the latter as long- but a little more than twice 

 as thick at its base as the dorsal hook ; posterior margin as in the typical species (Fig. jd"). 



The relative dimensions of the fourth legs are: merus 1,97; carpus i; propodus 2,05. 

 Merus 4-times, propodus 6,8-times as long as wide, the latter with 6 spinules; dactylus as in 

 the third legs. 



Eggs small, 0,65111111. long. This specimen is 1 2 mm. long. 



The female from Stat. 209, which is 1 1 mm. long, is referred to the same variety, because 

 the terminal spine of the scaphocerite also surpasses the carpocerite, which lias the same form 

 as in the preceding specimen. This female, however, which has lost the large cheliped, shows 



