178 T. THORELL, 
1837. Olios Warck., H. N. d. Ins. Apt., I, p. 563 (ad part.: saltem "1* Fam. Les 
Robustes, Robuste”). 
1864. »  Srw., H. N. d. Araignées, p. 409 (ad partem). 
Type: Heteropoda venatoria (LINN.). 
The only species provided with specific name, that LATREILLE takes 
up loc. cit. as an example under his genus Heteropoda, is Aranea venatoria 
Linn. (Olios leucosios WALCK.) 3), which must accordingly be considered as 
the type of the genus. According to the characteristics given by LATREILLE 
to Heteropoda, it answers to the whole sub-family of Philodrominæ, quite 
as Misumena LATR. answers to the sub-family Thomisinæ. — That a whole 
Class (of Mollusca) several years afterwards (1812) should have received 
the name of Heteropods (Heteropoda), is certainly unfortunate, but this cir- 
cumstance, it seems to us, cannot hinder the use of the singular form He- 
teropoda as a generic name, any more than the circumstance, that this name 
would have been much more suitable to a Thomisine than to a Philodro- 
mine genus, since at any rate it is not false as applied to this last. (Conf. 
p. 10, note 3). 
The tarsal claws of H. venatoria are very long and slender, only 
at the end bent downwards, with (on the 2™ pair) about 12 comb-teeth on 
the inner claw; those nearest the base (the interior) are very close to each 
other, parallel, the exterior coarse and divergent; all are rather short, 
gradually increasing a little in length towards the extremity of the claw; 
on the outer claw they are less numerous and more sparse. The claw- 
brushes are long and. thick, every separate hair very fine and somewhat 
incrassated just at the apex: seen in profile it there appears to be serrated 
on the underside. 
The genus Olios WALCK. seems to us to contain forms too hetero- 
geneous to allow of its remaining long undivided. Its ”1" Famille”, and 
perhaps a couple more, belong to Æeteropoda, as we have in p. 174 deter- 
mined the limits of that genus. The same generic group, which WALCKE- 
NAER calls Olios, had been previously characterized by SUNDEVALL under 
the name of Sarotes. That name, the oldest synonym of Heteropoda, ought 
to be made use of, if ever the genus comes to be divided into smaller generic 
groups. The Walckenaerian name is so incorrectly formed — it is said to 
be derived from Giodc, dAowéc, destructive, and accordingly should be writ- 
1) Ar. venatoria FaBr., Ent. Syst., II, p. 407 = Ar. nidulans 1D., Mant. 
Insect., p. 343 (1787), is a Theraphosoid (Nemesia), and therefore altogether diffe- 
rent from Ar. venatoria LINN. 
