On EUROPEAN SPIDERS. 167 
(as is undoubtedly the case with the name in question), the time of the na- 
me’s publication must be reckoned from that translation; but SAVIGNY and 
AUDOUIN had, if I mistake not, a little before its appearance, given the 
name of Nemesia to a species belonging to the "mining" spiders, and this 
name, as probably somewhat older, I have considered myself bounden to 
perfer to Cteniza BERTH. 
SIMON has exchanged (Nemesia and) Cteniza for an entirely new 
name, Mygalodonta, and says concerning Cteniza (loc. cit. p. 76) that "cette 
dénomination est restée inconnue”. It has therefore escaped his observation, 
that that name is both known and used in a work that he often cites, 
Kocxs Die Arachniden, and SIMON even himself cites (p. 453) in his ac- 
count of his Mygalodonta fodiens: " Cteniza Graja Kocn". 
That the name Mygale, if it could be used of a genus of spiders, 
would by right belong to the genus before us, I have already (p. 163) 
endeavoured to show. 
N. cellicola, according to O. G. Costa ?), is met with, though rarely, 
in the south of Italy, at Naples. Costa states that it has 3 claws upon 
the tarsi of the 3" pair only, the first pair being armed with 2, and the 
2" with but one claw respectively (!). According to SAVIGNY and AUDOUIN ?) 
this species has however three claws on each of the tarsi, like other spe- 
cies of the genus. 
*Gen. 4 DIPLURA C. Kocx. 1850. 
Deriv.: dızrAoos, double; ovo, tail. 
Syn.: 1805. Mygale Warck., Tabl. d. Aran., p. 5 ("2° Fam. Les Digitigrades inermes" 
ad partem). 
1850. Diplura C. Kocu, Uebers. d. Arachn.-Syst., 5, p. 75. 
1864. Mygale: sub-gen. Pexionyx [Pezionyx] Sim., H. N. d. Araignées, p. 64, 68 
(ad partem). 
Type: Diplura macrura C. Kocn. 
A 
This genus, corresponding with those of WALCKENAER’S ” Mygales 
digitigrades inermes”, which have very elongated superior spinners, consisting 
of 4 distinct joints, belongs to the European Spider-Fauna at least through 
Mygale Calpetana |Calpeiana] WALCK., which, according to WALOKENAER'S 
description *), in this feature agrees with the species, D. macrura C. 
1) Fauna d. Regno di Napoli, Araen., p. 20. 
2) Descr. de l'Egypte, (2° Ed.:) XXII, p. 304. 
3) Hist. Nat. d. Aran., Livr. 1, n:o 8 et 9. 
