BIHAXG TILL K. SV. VET.-AKAD. HANDL. BAND 10. X:0 10. 9 



lower margin with a row of shorter ones. The metacarpiis 

 is of aboiit the same length as the carpus, with some few 

 very short bristles at the inner margin. The dactyliis is 

 shorter than the metacarpi;s. 



The seventh pair of pereiopoda (Pl. II. fig. 19). The epi- 

 meral is of the same shape as the preceding one, but placed 

 a little deeper down ; the posterior corner is sharper than 

 in the epimeral of the sixth segment. The femur is broa- 

 der at the upper end; at the lower outer corner is a large 

 excavation for the reception of a part of the genn. The 

 margins of the excavation are bordered with short stiff hairs. 



c» 



The genu is hardly longer than the femur; broader at the 

 lower end, with thick obtuse spines around the lower margin. 

 The tibia is a little longer than half of the genu; the inner 

 margin is concavated, with two short spines; the lower mar- 

 gin carries some strong spines, especially at the outer corner. 

 The carpus is longer than the tibia, concavated at the inner 

 margin, carrying some spines there and at the lower corners, 

 The metacarpus is only a little shorter than the carpus and 

 of the same structure as in the preceding pair. The dactijlus 

 is shorter than the metacarpus. 



The pleon is of nearly the same length as the three last 

 segments of the pereion, linear, and narrower than the last 

 segment of the pereion. The first segment of the pleon is 

 only partly concealed by the preceding pereioual segment. 

 The four first segments are subequal in length, reaching 

 pretty far down; the hinder corners are sharply angu- 

 lated. The last segment is longer and a little broader than 

 the preceding ones; its hinder corners are more sharp-pointed. 

 The surface of the pleon is smooth, without granulation. 



The first pair of p)leopoda (Pl. II. fig. 20). The peduncle 

 is long and stout, the outer lamina is larger and carries 

 longer hairs than the inner. At its upper end it shows 

 traces of parti tion. 



The second jxiir of pleopoda (Pl. II. fig. 21) are a little 

 larger than the first. The inner lamina carries a styliform 

 process, articulated against its inner corner. Xo line of 

 partition on the outer lamina. 



The third pair of pleopoda (Pl. II. fig. 22) resemble the 

 first, but the outer lamina is larger. The hairs which börder 

 its margins are plumose (Pl. II. fig. 23). 



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