IVAR TRÄGÄRDH, 



(Schwed. Südpolar-Exp. 



Fis. S. 



the second pair and a little behind a line drawn between the posterior edges of 

 coxae III. 



Ventral side. Tritostenimn (Text-fig. 4) short, with short quadrangular, an- 

 teriorly square trunk; the feathered slips lanceolate, not quite three times as long as 



the trunk. Sternal poi'tion 

 weak, with three pairs of 

 rather long hairs. \' entrai 

 portion with two pairs of 

 hairs; on both sides of the 

 anal aperture two and at the 

 posterior margin one pair of 

 hairs. 



Peritreiiiata short (Text- 

 fig. 3) only about three times 

 as long as the diameter of 

 the stigmata, which are to 

 be found on a level with the 

 middle of coxa; IV. 



The legs are long, the 

 1st and 4th being longer 

 than the body, resp 0,76 mm 

 and 0,73 mm, richly provided, especially the tarsi, with rather long, setiform hairs of 

 which two terminal dorsal ones of the tarsi I are inserted on small, verruciform 

 projections. Tarsus I is almost cj-lindrical and suddenly narrows towards the end; 

 tarsi II — IV gradually narrow throughout their whole length. Genua IV somewhat 

 swollen. 



Ainlnilacres I (Text-fig. S) with a 2-lobed rounded caruncle and claws on a 

 long, 2-jointed peduncle; in the present specimen the two joints make a right angle. 

 Ambulacres II — IV (Text-figs. 9 and 10) with comparatively longer caruncles and 

 two subunguinal hairs. Peduncles of tarsi II and III rather short, those of tarsi IV 

 nearly as long as those of tarsi I, but straight. 



The epistoiua (Text-fig. 5) triangular, tridentate, with long, sharp teeth, of which 

 the median one is larger and longer than the others. Styli present, large. 



The hypostoma (Text-figs. 6 and 7). The hypostomatic hairs are of uniform 

 shape and situated widely apart; the anterior pair, which is somewhat more slender and 

 curved upwards and inwards, is inserted close to the anterior margin; the posterior 

 pair near the postero-lateral angle; of the median pairs, one is placed about halfway 

 between the anterior and the posterior pair, the last pair nearer the median line and 

 a little nearer to the other median than to the anterior pair. 



TracJiygamasus{?\ Ohlifii. Tc.DH. 

 F'g. 3- Stigma & peritrema. P'ig. 4. Trito^ternuni. Fig. 5. Epijtoma 

 Fig. 6. Hypostoma, ventral view. Fig. 7. Same, dorsal view. 662 x 

 .Vmbulacre I. Fig. 9. Ambulacre II. Fig. 10. Ambulacre IV. 

 .Ml fig?, except fig. 7. 460 x . 



