228 T. THORELL, 
The following still existing genera are stated to have representatives 
in the Prussian amber: Ero, Theridium, Erigone, Walckenaera [ Micryphan- 
tes], Euryopis [-us] and Linyphia. 
c. Scytodoidæ. MENGE mentions (Lebenszeich., p. 9) a species of 
Pholcus, as also a new genus, perhaps belonging to this family: 
Phalangopus MENGE 1854 ?), of which however it is only said, that 
it is related to Pholcus, with long, slender legs, but with the eyes placed 
otherwise. — Ph. subtilis MENGE. Vid. KoCH and BER., p. 94; Lebenszeich., p. 9. 
d. Mizalioidæ N. The curious genus Mizalia, which in KocH and 
BERENDT is classed among the Z7Aeridioide, but which MENGE (Lebenszeich., 
p. 8) refers to his Clubionida (= Drassoide + Dysderoide NOB.), appears to 
me to form the type of a quite peculiar family, perhaps most related to the 
Urocteoidæ in the sub-order Tubitelariæ. The characters of this family may 
be seen from those of the only known genus: 
Mizalia (K. et B.) 1854?). The cephalothorax is in the form of a 
broad inverted heart; the pars cephalica, which has the same height 
as the slightly convex, broad pars thoraciea, is drawn out in a kind 
of snout before the eyes. The eyes are about equal in magnitude and 
placed in two transversal rows on the superior side of the head: the 
anterior, shorter row is curved backwards, the posterior row is nearly 
straight. The legs are rather short and strong (as are also the palpi), 
their relative length 1, 2, 4, 3; the abdomen is short, ovate; the superior 
or posterior spinners are slender, conieally pointed, the intermediate spin- 
ners cylindrical and more than double as long as the inferior (anterior) , which 
are truncated, conical and thicker. — Type: M. rostrata K. et B. — Conf. 
KocH and BER., p. 42—45. 
e. Hersilioide, Besides an Hersilia (of which genus no species is 
known now to exist in Europe: Conf. p. 115), a new genus belonging to 
this family has been found in the Prussian amber: 
Gerdia MENGE 1869 °). This remarkable genus is nearly related to 
Hersilia; but the head is raised into a high vertical boss, and the legs are 
destitute of the long, third tarsal joint found in Hersilia (according to MENGE 
the tarsi are only two-jointed). The very long three-jointed superior spin- 
ners are curved downwards towards their extremity; their long third joint 
1) gdA«yi, joint; wovc, leg (or perhaps Phalangiwm and zov). 
2) Deriv. unknown to me. Probably a proper name. 
3) "Iéoóua, textrix”: MENGE. 
