104 T. THORELL, 
claw; the inferior claw is very small, and without teeth (in the next genus 
it disappears altogether). The female’s palpi are destitute of a claw, but 
have instead three coarse bristles, slightly curved towards the extremity, and 
thickened like a button at tip, which internally disclose a canal terminating 
in a blind, rounded enlargement in the button. These bristles are surrounded 
by numerous pointed bristles of the ordinary form. This all applies to S. 
thoracica. In an exotic species (from Caffraria) I have counted 5 such- 
like bristles dilated in the form of a button. 
Gen. 4. LOXOSCELES Hern. et Lowe. 1831. 
Deriv.: Ao&os, oblique; oxéloc, leg. 
Syn.: 1820. Scytodes Durour, Descr. de cinq Arachn. nouv., p. 202 (ad partem). 
1831. Loxosceles Lown, Descr. of two spec. of Aran., p. 321. 
1833. Omosites Warck., Mém. s. une nouv. Classif. d. Aran., p. 438. 
1837. Scytodes 1p., H. N. d. Ins. Apt., I, p. 270 (ad part.: "2* Fam. Les Dépri- 
mées, Depressæ”). 
1864. Omosites [Omosita] Srw., H. N. d. Araignées, p. 50. 
Type: JLowosceles citigrada HEIN. et LOWE. 
The genus Lowosceles, which was formed by (HEINEKEN and) LOWE 
in 1831 at the above mentioned place, is identical with Omosites, proposed 
by WALCKENAER in 1833 for Scytodes rufescens Dur. (loc. cit), though 
WALCKENAER himself afterwards united it with Scytodes, as a "family" be- 
longing to that genus. I however agree with SIMON in considering Omosi- 
tes or Loæosceles as a group sufficiently characterized to deserve being pre- 
served as an independent genus. In its appearance it bears a certain re- 
semblance to some Philodromine, and was therefore by Lowe considered 
as belonging to the Laterigrade ?). The species of Lowosceles, which I have 
had the opportunity of examining, differ from all other Retitelarie, with 
which I am acquainted, in having only two claws on the tarsi. These 
claws are long and slender, strongly and regularly curved almost into a 
semicircle. In an Egyptian species I have found them provided with about 
12 very pointed comb-teeth, the points of which lie in an almost straight line; 
in a specimen of L. rufescens (Dur), from Spain, kindly sent to me by 
Mr. Simon, I have found only 8 such teeth. On the other pairs of legs the 
1) ”Citissime currit. Quietus pedes omnes oblique in libella horizontali extendit. 
Telam prædæ nec jacit nec ullam nisi fila quzdam struit", says Lowe loe. cit. of 
Low. citigrada. 
