BIHAXG TILL K. SV. VET.-AKAD. HANDL. BAND 12. AFD. IV. X:0 4. 5 



The jirst pair of ma j- illa; (Pl. I, lig. 5) are slendcr, straight, 

 with two larger and two smaller spine-like teeth at the tip. 



The second pair (Pl. T, lig. (5) are stout, thick, feebly hol- 

 lowed at the anterior side, not surrounding the first pair; at 

 the free eud they show a rounded head with two short but 

 strong, feebly bent teeth, and at the inner side of this head a 

 small sphffirical articulati ng(?) joint, armed witli a strong tooth. 



The ma.rillipeds (Pl. I, lig. 7) are very simple, consisting 

 of three thick joints, the second the longest, the last ovate, 

 armed with two hooked teeth at the tip and a straight one 

 at the inner side. 



The pereion is strongly convex, almost compressed. The 

 iirst segment is three-sinuated at the anterior margin, the 

 lateral sinus bordering the eyes; it is longer than the second. 

 The sixth and seventh segments are the longest, equal; the 

 fourtli is the shortest. 



The epirnerals (Pl. I, lig. 2) of the first segment are the. 

 smallest, ronnded behind, longer than the segment. The ones 

 of the third and fourth segments are longer, obtnsely pointed 

 behind, longer than the segments; the epirnerals of the fifth seg- 

 ment are a little deeper, obtnsely pointed behind, scarcely as long 

 as the sefjment. The ones of tlie sixth and seventh seofments 

 are spindle-shaped, acutcly pointed behind, longer than the 

 correspoiiding segments. The last pair rcach to half the length 

 of the first pleonal segment. 



The first to third pairs o^ 'pereiopoda have the femur broad 

 and short; tlie foiirth to seventh pair have the femora longer, 

 nearly linear. The genii is long and stovit in all pairs, the 

 tibia and carpus very short, the metacarpus tolerably long, witli 

 well developed articulation for the dactylus; the dactylus is 

 strongly hooked, very long, a little shorter in the two last 

 pairs. In the first live pairs it is constricted at the base. 

 (Pl. 1, lig. 8-10.) 



The pleon is a little shorter tlian the last two pereional 

 segments. The segments are equal in length, the first a little 

 the broadest; the npper hinder corncrs of the segments are 

 obtuse, increasino- in lenofth backwards, the inferior corners 

 are very long in the first two segments, mncli shorter in the 

 third, and very small in the last two segments. The inferior 

 corners of the first two seo-ments are fiat, elono-ate-ovate, the 

 ones of tlie first seomcnt reach to the cnd of the inferior 



