THK GENKIIA AND SrEOTES OF RYMTHYLA. 47 



setae, but tliey avo even longei* than tlie antero-lateval seto3 

 on the second scutum ; on the following scuta most of the 

 characteristic seta? have been lost, so that it is impossible to 

 produce a description . The penultimate scutum (fig-. 4 h) 

 has the posterior margin very slightly convex to very slightly 

 emarginate at the middle ; the figure shows that it is adorned 

 with some pairs of lougish or long setas, but the posterior 

 lateral pair, which probably are the longest of them all, have 

 been broken off, and are therefore indicated in the figure 

 witli dotted lines. 



Legs. — The last pair (fig. 4 c) with the tarsus almost four 

 times longer than deep, and scarcely widened towards the 

 base. The tibia with a distal dorsal seta, which is very 

 strong, and nearly as long as the depth of the joint; the 

 metatarsus Avith four seta? in the anterior dorsal roAV, of which 

 the distal ones are two thirds as long as the depth of the joint ; 

 furthermore, behind the distal dorsal seta there is another seta 

 as long as or longer than the depth of the metatarsus; the 

 tarsus with five setfB in the anterior dorsal row, partly as long 

 as or a little longer than the depth of the joint. The anterior 

 claw (fig. 4 d) is moderately long, rather robust, and some- 

 what curved; the posterior claw is somewhat shorter than 

 the other, less robust, and much more curved; the front seta 

 is long and slender. The exopod two thirds as long as the 

 depth of the metatarsus. The first pair of legs (fig. 4 e) with 

 the anterior claw (fig. 4 /) long, slender, and somewhat 

 curved; the posterior claw nearly two thirds as long as, but 

 somewhat more slender and a little more curved than the 

 other ; the front seta moderately long and moderately robust. 



Cerci (fig. 4 ^). — They are from a little more than four 

 and a half to five times longer than deep, set with a moderate 

 number of strong setae, which increase gradually but con- 

 siderably in length from the base outwards, and the distal ones 

 are a little longer than the depth of the cerci ; the distal part 

 of the cerci is more or less produced and without seta?. The 

 terminal area looks upwards, and is of medium length or 

 rather long. The apical seta has been lost in my specimens. 



