On EUROPEAN SPIDERS. 43 
Concerning the exotic families accepted by us a few words appear ne- 
cessary. The family Ayrmecioide stands almost half-way between the Attoide 
and the Drassoide, and, though forming a continous series with them, cannot 
well be aggregated to either. — The wonderful genus Otiothops Mac LEAY !), 
whieh differs from all other known spiders in the form of the first pair of 
legs, which are palpiform, short and thiek, without claws, and composed 
of only 6 joints, certainly appears to stand nearest to Palpimanus among 
the Eresoide, but cannot easily be united either with that or any other as yet 
formed family, on which account we have been obliged to set up a new 
family especially for it, the Otiothopoidæ. — Whether the D/nopoide really 
ought to occupy the place I have allotted to them, is uncertain: L. KocH >) 
unites them with the Æresoidæ, to which they appear to me to approach 
nearest: DOLESCHALL ?) however says of a species described by him, Dinopis 
Kollari from Amboina, that "it builds a very long irregular web between 
trees, in the middle of which web it sits, with its frontmost pair of 
legs stretched out.” DOLESCHALL places Dinopis between Dolomedes and 
Oxyopes; even Mac LEAY, who was the first to make known this genus, 
reckons it to the Citigrade. — As regards the Catadysoide, I have thought 
it necessary to form that new family for the North American Cutadysas 
[Katadysas] pumilus HENTZ *), which, by having the palpi inserted near the 
extremity of the maxilla, and by the longitudinal direction of the mandi- 
bular claw, is related to the typical Theraphosoidæ, but in other respects 
seems to approach very near to the Zycosoidæ: like them it is said to have 
only two tracheal ("pulmonary") sacs. — The family Liphistioide has been 
Bipulmonaires: Durour (Tetrapneumones and Dipneumones: LATR.) is now, I think, 
pretty generally abandoned. 
1) On some new forms of Arachn., p. 13. — The name is no doubt formed: of 
odéw or OIG, run against, push, and ww, eye, with reference to the cireumstance, 
that the two posterior intermediate eyes, which are of different size, stand so close 
together, that the larger seems to push the smaller out of the way. The name in 
this case ought to be quite otherwise written — one might at least alter it to Othio- 
tops. But, as some may perhaps prefer to derive the word from wziov, a little ear, 
and dow, flatterer, however impossible that etymology may appear to me, I have 
not eonsidered myself at liberty to alter the usually received way of writing the 
word. In Agassiz’ Nomencl. Zool. it is derived from wziov, auris and ww facies! 
2) Beschr. neuer Arachn. u. Myriap. (1867), p. 59 (231). 
3) Tweede Bijdr. t. de Kennis d. Arachn. v d. Ind. Arch., p. 11. 
4) Araneides of the United States, in Boston Journ. of Nat. Hist., Vol. VI, p. 287, 
Pl. X, fig. 16. 
