128 



or at least in a more rudimentary state in E. dentifera. The clava in 

 this last is longer than the tibial joint, but in E. affinis it is much 

 shorter than that joint, small and rounded. — In E. Huthwaitii the 

 tibial joint is almost double the length of the patellar, in E. dentifera 

 it is rather somewhat shorter than the patellar joint, at least on the 

 under side; in front it is drawn out into a short, broad process, 

 which is divided by a small notch into two short teeth. As in E. 

 Huthicaitii, the clava has at its apex a straight, black spine; it is 

 oval, something thicker than the thigh, and not quite double as broad 

 as it is long: in E. Huthwaitii the clava is small, rounded, shorter 

 than the tibial joint, and not so broad as the thigh ')• — E. Huth- 

 waitii (Cahbr.) has been captured by Dr v. Porath in Smaland, and by 

 Dr Tullberg in Skane; it has not before been recorded as Swedish. 



(Pag. 262.) 35. E. dentata [= Erigone dentata (Retjss) 1834]. 



Syn.: 1834. Theridium dlntatum Keuss, Zool. Misc., Arachn., p. 223 (229), 



Taf. XV, fig. 8. 



1841. Argus dentatus Walck., H. N. d. Ins. Apt., II, p. 354. 



1864. Neriene dentata Blackw., Spid. of Gr. Brit., II, p. 258, PI. 



XVIH, fig. 174. 



1868. Tmeticus dentatus Menge, Preuss. Spinn., II , p. 187, PI. 35, 



tab. 87. 



? 1868. „ cristatus id., ibid., p. 189, PI. 36, tab. 88 (ad part.: $). 



Tmeticus cristatus Menge cT is probably only a variety of Tm. 

 dentatus cf (as regards the female I cannot venture an opinion), 

 though it is stated to differ from this last partly by some dissimi- 

 larity in the organs of copulation, and partly by the presence of a 

 longitudinal, pale, central line on the abdomen, which is absent in 

 Tm. dentatus. This last characteristic cannot be considered as of 

 any great weight (a similar line is often, but not always, found in e. 

 g. E. rufipes); it is nevertheless the only one by which I could di- 

 stinguish a cf of T. cristatus kindly sent to me by Menge, from my 

 male specimens of E. dentata, among which is one determined by 

 Menge himself. Even with the microscope 1 am unable to see any 

 difference in the sexual organs. 



]) I possess a $ of an Erigone, which I have captured somewhere in 

 Germany, and which I can scarcely distinguish from E. dentifera by any other marks 

 than that the tibial joint is longer than the patellar, and that the clava is long 

 and slender, slenderer than the thighs of the l:st pair of legs, and the length 

 more than double the breadth; I call this species Erigone decens. 



