342 



Ar. palnstris Schranck. As regards the former of these, vid. sup., 

 p. 289; as regards the latter, p. 300. 



In P. piraticus the legs, palpi and mandibles are usually olive- 

 yellow, without spots ; yet individuals are sometimes met with, espe- 

 cially belonging to a darker variety, in which the thighs have two 

 tolerably distinct dark rings. The cephalothorax is about '/ 2 millim. 

 shorter than the patella + tibia of the 4 th pair; its breadth is in ? 

 equal to, in <J slightly less than, the length of the tibia of that 

 pair. The cephalothorax in ? is 3'/ 4 — 3 2 / 3 , in <5 2 3 / 4 — 3'/ 2 millim. 

 long. The legs of the 4 th pair are in £ about 3'/ 2 times as long 

 as the cephalothorax, in c? ordinarily somewhat longer, but not 

 fully 4 times as long as the cephalothorax. The broad olive-yellow 

 marginal bands on the cephalothorax are uneven on their upper edge, 

 but not coarsely or deeply indented. The sternum is of a paler or 

 darker yellowish colour, without a pale middle-stripe. The ante- 

 rior row of eyes is in the female (though hardly so in the male) 

 distinctly longer than the middle row, and the centre eyes distinctly 

 larger than the lateral eyes and somewhat more distant from each 

 other than from these last. The mandibles are in both sexes con- 

 siderably shorter than the metatarsi of the first pair. The vulva is 

 formed by two small, brown, uneven elevations, converging and be- 

 coming narrower backwards, and situated close by the rima geni- 

 talis. The tibial joint of the palpus in cf is fully double as long 

 as- it is broad, somewhat longer than the patellar joint; the lamina 

 is not so broad as the thigh, but broader than the tibia of the 1 st 

 pair: the bulbus is on the under side rather equably and strongly 

 swelled; viewed from the side it extends forward into a short, coarse, 

 slightly upturned point. 



Nearly allied to P. piraticus are L. (Pot.) piscatoria C. Koch '), 

 which I look upon as identical with Ar. Knorrii Scop. 2 ) and there- 

 fore call P. Knorrii, and L. piscatoria Blackw. 3 ), for which I pro- 

 pose the name of P. hygropMus: both are widely different from the 

 real P. piscatorius (Clerck), on which see the foregoing species. 



1) Die Arachn., XV, p. 6, Tab. DVJ, figg. 1417-1419. 



2) "Aranea Knorrii. Fusca, abdomine elliptico, villoso, lateribus subtusque 

 pallidiore. Cursitat super aquas, easque petit fugiens . . . Femora fusco-fasciata, 

 rufescentia. Statura Saccata? (SCOP., Ent. Cam., p. 403). — On the addition: "non 

 diversa ab Aranea ftmbriata Limai," no weight can be laid, since what Scopoli 

 says of the colour of the legs and of the size does not suit Dolom. fimbriatus. 



Z) Spid. of Gr. Brit., I, p. 34, PI. II, fig. 16. 



