12 IVAR TRÄGÄRDH, (Schwed. Sü(l])olar-Exi). 



nor tibialis nor tarsalis; claws larger, caruncle bilobated, one pair of subunginal 

 flips. 



Legs IV with long femur and tarsus; tarsus IV in the middle of the dorsal 

 side with one long tactile hair. 



EpistoDia (Text-fig. i6) triangular, with long, median macro; the edges slightly 

 concave with 12 — 14 pairs of small, sharp teeth Styli present, narrow and short. 



Hypostoma (Text-fig. 15); maxillary lobes 2-jointed, with broad basal joint, 

 covered by the lateral edge of the maxillary plate; terminal joint with broad base; 

 its inner (median) edge with a deep incision. 



The mandibles (PI. I, fig. 4) with rather broad chela; lower jaw a little shorter 

 than the upper one and with the ventral edge more curved; sharp terminal tooth 

 and one sharp tooth a little in front of the middle, behind this an incision and a high 

 sharp edge; calcar mandibuli fused with the lower jaw with broad base, narrow, ot 

 even width throughout, exactly as long as the chela and curved upward and forward 

 near the tip. The upper jaw with more straight dorsal edge, a little longer than 

 the lower one, with one small subterminal tooth beside the terminal one and two 

 larger teeth at regular intervals; between the subterminal and the first middle tooth 

 several small teeth and the sense organ. 



The inaxillary palps; on the inner side of the third joint in the middle one large 

 feathered bristle and more ventrally one curved bristle with flattened ventral edge. 



Locality: No. 12. One male. 



5. Hydrogamasus antarcticus nov. spec. 



(PI. II, figs 6, 18. 21. I'l. HI, fig. 2. le.\t-figs iS— 25.) 



Male. Average length 0,65 mm, breadth o.^s mm. 



Female. ■ » 0.69 » •> 0,4 > 



Male. Shape, colour and texture like that of H. salinus Lab. [= H. littoralis 

 (G. R. Can.) Berl.]. Dorsal side covered by a single shield, provided with small, 

 regularly placed hairs; near the hind margin two pairs of somewhat longer hairs. 



J'entrai side. Tritosternuni with narrow nearly c>'lindrical trunk, three times 

 as long as broad; the feathered slips very narrow, three times as long as the trunk. 



Only one pair of jugular shields (Text-fig. 22), jugular shields narrow, triangular, 

 with straight hind margin; the front margin from the median (inner) angle slightly 

 rising for = 3 of its length, from thence suddenl)' falling oft'; no hairs. 



Sternal shield: instead of the usual 3 pairs of hairs it is provided with not less 

 than 5 pairs, of which one is situated close to the anterior margin, halfway between 

 the genital aperture and the antero -lateral angles; the other 4 pairs are all situated 

 near the sides, one on the inner side of coxae II on a level with their middle, two 



