308 TAGR SKOGSBERG 



on the third endite. Of the three bristles on the boundary between the basale and the first 

 endopodite joint the one near the exopodite is about as long as the distal bristles on the exopodite 

 and has short, fine hairs; the one on the anterior edge of the palp is somewhat longer than the 

 dorso-distal bristles on the coxale, the one at about the middle of the inside of the palp is somewhat 

 shorter; these two bristles have short, fine hairs or are almost naked. Of the three bristles on 

 the exopodite the two distal ones are subequal, somewhat longer than this branch and 

 about twice as long as the proximal one; the distal one has short, fine hairs, the other two ire 

 plumous. Endopodite (fig. 16): First joint: Distally on the anterior edge there are two 

 rather long bristles with short, fine hairs, the anterior of which is a good deal longer than the 

 posterior one. Distally on the posterior edge there are also two bristles, the posterior one rather 

 long and rather strongly pectinated, the anterior one considerably shorter and weaker and with 

 short, fine hairs distally, almost bare. Close to the two latter bristles the joint has a somewhat 

 pointed triangular process, which projects strongly and is rather strongly chitinized. The end 

 joint is rather strongly chitinized and is furnished with a rather small number of bristles, only 

 ten: three a-bristles of moderate strength and length, bare or almost bare; one b-bristle of 

 moderate length, rather powerful, and rather strongly pectinated; three c-bristles, subequal, 

 rather powerful, of which the two posterior ones are of the same type as the b-bristle, while 

 the anterior one is furnished at the middle with a few powerful secondary teeth ; three d-bristles, 

 very powerful and somewhat longer than the former ones, subequal, the posterior one very 

 strongly pectinated distally, the two others with a rather small number of very powerful secondary 

 teeth at the middle. Pilosity: The first endopodite joint has transverse series of short, fine hairs. 

 Fifth limb: — Protopodite: The first endite (fig. 19) is furnished with six 

 bristles, of which nos. 2 and 4, counting from the anterior side of the limb, are of moderate length 

 and somewhat longer than the other four; no. 1 is short but, judging from the larval specimen 

 investigated, not always as short as shown in the adjoining figure. All these bristles are rather 

 powerful and are furnished with one or a few wreaths of long, stiff secondary bristles. Second 

 endite (fig. 20): The five inner bristles are of moderate lengths; nos. 3 and 4, counting from 

 the anterior side of the limb, are somewhat shorter than the rest. All except no. 3 are 

 furnished at the middle with a wreath of long, stiff secondary bristles. Bristles nos. 1 and 2 are 

 rather powerful and rather weakly pectinated distally, no. 3 is also rather powerful and is sharply 

 serrated distally, nos. 4 and 5 are very powerful and have a few strong secondary teeth distally. 

 The single bristle on the anterior side of this process is short, rather weak and bare. Third endite 

 (fig. 21): Most of its seven bristles are moderately long, the middle ones being somewhat shorter 

 than the outer ones; no. 6, counting from the anterior side, is very short. The six anterior ones 

 are rather powerful, the posterior one is very powerful. Bristles nos. 1 and 7 are furnished 

 with a wreath of more or less long, stiff secondary bristles proxinuilly of the middle; on no. 1 

 these are, however, rather few in number and weak; all the other bristles are without any 

 such secondary bristles. Bristles nos. 1 and 2 are finely pectinated distally, nos. 3 and 5 are 

 sharply serrated distally, no. 4 is rather strongly pectinated distally, no. 6 has a few powerful 

 secondary teeth distally, no. 7 is very powerfully pectinated distally. The distal chitinous 

 spine of the protopodite is long, narrow and curved. The epipodial appendage has 



