BI 



HÄNG TILL K. SV. VET.-AKAD. HANDL. BAND 12. AFD. IV. N:0 4. 19 



tooth, the palp is vcry thick and robust, almost deformed, 

 thickcr than the stem of the mandiblc itself, the lirst joint is 

 the longest, it shows on the hinder side a deep channel-like 

 excavation forming a fully closed round passage through the 

 second joint, probably opening in the base of the third joint. 

 The hist joint is thick, tongiie-shaped, rectangularly articuLa- 

 tinw with the second, fringed at the free rounded end with 

 seven stout, long, feebly curved spines. 



The first pair of maxillce (Pl. IV, tig. 50) are styliform. 

 tipped with three equal strong spines. 



The second pair (Pl. IV, fig. 49) are robust, hollowcd the 

 free rounded end carrying four short, straight, spine-like tu- 

 bercles, the small articulating joint carries two such tubercles. 



The maxillipeds (Pl. IV, fig. 51) are short, reaching to the 

 cnds of the maxillae; the first two joints are broad and long, 

 equal, the third half as long as the second, rectangularly ar- 

 ticulatinsf, armed with sorae few verv short, hook-like teeth 

 at the tip. 



The pereion. The segments, except the first, second 

 and seventh, are transversally hollowed. The hinder margins 

 of all the segments are thick, extanding; the first segment is 

 longer than the second, as long as the head, the anterior 

 margin is straight; the sixth segment is the longest, the second 

 the shortest. The posterior corners of the first segment are 

 rectangular, those of the second and third feebly rounded? 

 those of the fourth and lifth truncated, those of the sixth 

 rectangular, scarcely produced, those of the last segment very 

 produced, obtuse. 



The epimerals (Pl. IV, fig. 47) of the first segment are 

 rounded behind, as long as the segment, those of the second seg- 

 ment are shorter than the segment, those of the third occupying 

 half the segment, those of the fourth less than half, those of 

 the fifth a little morc than half, and the epimerals of the last 

 segment are the longest, occupying two thirds of the length 

 of the segment. 



The ovitectrices are smooth, not striatcd, reachino- to the 

 first pleonal segment. 



The pereiopoda (Pl. IV, lig. 52 and 53) incrcase in length 

 fr<mi the first to the sixth pair, the seventh are much longer 

 than the sixth. The dactyli of the first pair are not longer 

 than those of the last pair. 



