30 H. J. HANSEN. 



metatarsus, aud six or seven in the same row on the tarsus; 

 the anterior claw (fig. 1 n) a little or somewhat longer than 

 the other, which is more curved and somewhat more slender, 

 and both claws are elongate. The exopod is long, slightly 

 shorter than the depth of the metatarsus. The first pair 

 (fig. 1 o) with the femur simple, witliout ventral process ; the 

 claws (fig. 1 p) are elongate, subsimilar in shape, somewhat 

 curved, rather slender, and the anterior one somewhat longer 

 than the other ; the front seta is rather long and robust, 

 regularly setiform. (In a specimen with the twelfth pair 

 [fig. 1 r] of legs a little smaller than the eleventh [tig. 1 i], 

 the pair named has the tarsus three times longer than deep, 

 the dorsal setae longer, three in the anterior row on the 

 metatarsus, and four on the tarsus, the claws [fig. 1 *] 

 shorter, more robust, subsimilar in shape and length, the 

 first pair of legs with the claws [fig. 1 n] considerably thicker 

 and shorter than in full-grown specimens.) 



Cerci (fig. Iq). — They are adorned with a large number 

 of short and moderately thin setae ; the terminal area is 

 unusually short and looks outwards; the apical seta is rather 

 short, at most half as long as the depth of the cerci. In the 

 largest specimen seen the cerci are six times longer than 

 deep, thus very elongate; in a small but completely deve- 

 loped specimen the cerci are four times, and in all other 

 adult specimens between four and six times longer than 

 deep. (In a specimen with the twelfth pair of legs a little 

 smaller than the eleventh the cerci [fig. 1 u] are scarcely 

 three and a half times longer than deep, the number of their 

 setse is very moderate, and the terminal area looks upwards.) 



Length. — Specimens with the last pair of legs well 

 developed that I have seen vary from o'2 to 7*5 mm. in 

 length ; the specimen with the last pair of legs not quite full- 

 grown measures 2*y mm. According to Latzel the length 

 varies even between 2'5 and 8 mm. 



Locality. — In Denmark the species is common in mode- 

 rately damp places in forests (in old stumps, under moss, 

 etc.) ; I have also seen specimens from Sweden (collected by 



