On EUROPEAN SPIDERS. 213 
Gen. 6. MARPESSA (C. Kocx). 1846. 
Deriv.: undoubtedly Maeryooe, a mythol. prop. name; the word ought there- 
fore to be written Marpessa, not Marpissa. 
Syn.: 1837. Dendryphantes C. Kocn, Uebers. d. Arachn.-Syst., 1, p. 31 (ad partem). 
11846. Icelus ID., Die Arachn., XIII, (saltem ad part.:) p. 174. 
1846. Marpessa [Marpissa] ID., ibid., p. 56 e£ sequ. 
1850. = så ID., Uebers. d. Arachn.-Syst., 5, p. 47. \ 
1861. Attus Wesrr., Aran. Suec., p. 543 (ad partem). 
1861. Salticus BLackw., Spid. of Gr. Brit., I, p. 47 (ad partem). 
1864. Attus [Atta]: sub-gen. Dendryphantes Sim., H. N. d. Araignées, p. 310 (ad 
partem). 
1864. Cyrtonota: sub-gen. Phidippus [Phidippia]: "groupe" Plexippus [Plexippa] 
ID., ibid., p. 324 (ad partem). 
1868. Marpessa [Marpissus] ID., Monogr. d. espèces europ. de la fam. Attides, p. 6 (16), 
ad (Gly); 
(ad max. part.). 
1868. Attus ID., ibid., p. 6 (16), 196 (692) (ad partem). 
1868. Menemerus ID., ibid., p. 6 (16), 196 (692) (ad partem). 
Type: Marpessa muscosa (CLERCK). 
The lamina of the male’s clava palpalis is not in all the spiders that 
we assign to this genus ”élargi en palette,” as in the typical species, which 
feature SIMON however takes as characteristic of the genus. As we have 
above defined it, it includes among the Attoidæ with which I am acquainted, 
not only M. muscosa, M. radiata (GRUBE) and JM. hamata C. Koch '), but 
also Salticus pulchellus HAHN, Menemerus falsificus SIM. and Attus Lucasü 
SIM., which last-mentioned two species, together with several other European 
Attoidæ, Simon himself had the kindness to send me. In its general ap- 
pearance this genus occupies a place between Æpiblemum and Menemerus. 
M. pulchella (HAHN) seems to form a transition to the former genus. Con- 
cerning Zcelus C. KocH see p. 206. — The claws are somewhat shorter 
and stronger than in most other Attoide, at least in JM. muscosa, in which 
species I have counted about 15 fine teeth on the inner, and from 3 to 6 
on the outer claw. 
1) Icelus notabilis C. Kocx is the male to his Marpessa hamata; both are stated 
to be from Naples. I have myself captured them in Rome. Simon has obligingly 
sent me both c? and © under the name of Attus striatus WALCK. (Attus striatus 
(CLERCK) is quite another spider). Marpessa hamata Sim. is not identical with C. 
Kocxs spider of that name. 
