572 TAGK SKOGSRRRG 



in most cases (always?) no such secondary bristles at all on the bristles of the endite of tlie 

 coxale. Apart from these bristles the procoxale and the coxale are quite without bristles. 

 The basale forms on the inside a somewhat lobe-like projecting part, furnished in most 

 cases with a single bristle; apart from this the joint has no bristles at all. E n d o p o d i t e: 

 The first joint had in the species investigated by me from four to six bristles on the anterior 

 edge and from two to four bristles at about the middle or somewhat distally of the 

 middle of the posterior edge; in addition there is a single bristle on the inside of this joint 

 somewhat distally of the middle or rather near the distal boundary. The end joint is armed 

 with five or six distal bristles. 



Fifth limb: — This has no dimorphism or at any rate it is scarcely perceptible. — 

 Protopodite: The basale is furnished with traces of two endites. Epipodial 

 plate: The number of the marginal bristles is almost quite constant within this whole group ; 

 the following numbers were observed on all the species investigated by me: five bristles in the 

 proximal, five (four in only one species) in the middle and four in the distal group; in exceptional 

 cases, however, an increase or a decrease of one bristle may be observed in one or more specimens 

 in one or two of these groups. All these bristles are comparatively long, with long secondary 

 hairs right out to their points, except the proximal one in the proximal group, which is only 

 about as long as or somewhat shorter than half the length of the others, and has short, 

 fine hairs. Exopodite: This has always three joints. Its first and second joints are 

 rather elongated and of about the same length. First joint: This has a moderate number 

 of bristles ventrally; there is only one bristle dorsally on the joint and it is in most 

 cases very long; in addition there are laterally, at about or somewhat in front of the middle 

 of the joint, in most cases one, sometimes two, bristles. Second joint: This has only 

 three bristles, one of which is situated dorsally, at or somewhat in fnmt of half the length 

 of the joint, the two others close to each other at the corresponding place on the ventral 

 side of the joint. 



Sixth limb: — This is with or witliout dimorphism. — Epipodial plate: 

 The number of marginal bristles seems to be almost quite constant within the whole of this 

 sub-family. The following numbers were observed by me on all the species of this group that 

 were investigated for tins treatise: seven bristles in the proximal group, five in the middle one 

 and five in the distal one. Just as in the case of this appendage on the preceding limb an increase 

 or decrease of one bristle in one or two of these three groups may, however, be observed on single 

 specimens. These bristles are of the same type and about the same length as those on the epi- 

 podial plate on the fifth limb; I ought perhaps to point out especially that, just as in the case 

 of tiiis plate, so, too, on the sixth limb the proximal bristle in the proximal group has short hairs 

 and is relatively short, about as kmg or not quite as long as half the length of the other bristles. 

 Endopodite: This has only one or two bristles. Exopodite: The three proximal 

 joints are rather elongated and often of about the same length. The first joint has a moderate 

 number of bristles ventrally, and in most cases one bristle dorso-distally. The second joint has 

 only one, rarely two bristles, situated ventrally, in most cases at about iialf way along 

 the joint. The third joint lias in most cases two bristles, one of whicli is situated dorsally, 



