132 



femora antica, et mandibulis supra apicem minus profunde excavatis 

 instructum erat". That specimen no doubt belongs to a separate spe- 

 cies, of which I have received specimens from Niirnberg from L. Koch 

 under the above received name of E. arundineti, and which is a little 

 smaller than E. livida (pinguis) usually is, but in other respects is so 

 like that species, both in general appearance and form of the palpi, 

 that it can be distinguished almost only by the palpal clava, which 

 in E. livida is something shorter than the mandibles, and, when viewed 

 from above, oviform, elongated, with a slender extremity and its 

 greatest diameter not double that of the fore thighs. In E. arun- 

 dineti on the contrary the clava is somewhat longer than the man- 

 dibles, of a shorter egg-form, tapering but little towards the apex, 

 and its greatest diameter is more than double that of the fore thighs. 

 — Cambridge has kindly sent me the typical form of E. pinguis 

 Westr. under the name of Neriene livida Blackw. This species is not 

 described by Menge: his Micryph. lividus '), which I have seen, is 

 an entirely different spider. 



(Pag. 271.) 40. E. erythrocephala [= Erigone rufa (Keuss) 1834]. 



Syn.: 1834. Theridiuh rufum Redss, Zool. Misc., Arachn. , p. 218 (223), PI. 



XV, fig. 3 (saltern i). 

 1836. Micrtphantes ertthrocephalus C. Koch, Die Arachn., Ill, p. 



85, Taf. CI, fig. 233 [234] 2 ). 

 1836. Neriene rubripes Blackw., Charact. etc., in Lond. and Edinb. 



Phil. Mag., 3 Ser., VIII, p. 485. 

 1841. Micryphantes erythrocephalus C. Koch, Die Arachn., VLTT, p. 98, 



Taf. CCLXXX, figg. 667, 668 

 (saltern ad part) 

 1841. Argus rufus Walck., H. N. d. Ins. Apt, LI, p. 348. 

 1864. Neriene rubripes Blackw., Spid. of Gr. Brit., LI, p. 287, PL 



XIX, fig. 201. 



1866. BATHYPHANTES INERMIS [PALLESCENS] Menge, Preuss. Spinn., I, p. 



120, PL 22, tab. 45 ($). 



1866. „ BREVTPALPUS id., ibid., p. 122, PL 22, tab. 47 



(?; won $). 



1867. Micrtphantes ertthrocephalus Ohl., Aran. d. Prov. Preuss. , p. 



56, 74 (saltern ad part.). 

 1867. „ lamlnatus id., ibid., p. 56, 75. 



?1867. „ ruficephalus id., ibid., p. 57, 79 (ad part: $). 



1) Preuss. Spinn., LU, p. 236, PI. 46, tab. 135. 



2) In Taf. CI, among the figures, "Fig. 234" is an error of the press for 

 "Fig. 233", and vice versa; and in the list of figures on that plate "M. sylvarumP 

 is a lapsus calami for "31. erythrocephalus"! 



