ORDER PULMONARY. 
421 
Senelops, Du/our, 
Form the passage from the preceding subgenus to the follow- 
ing: the jaws are straight, or but very little inclined, without 
lateral sinus, and proceed into a point, being truncated 
obliquely at the internal side. The tongue is semi-circular, 
like that of the micrommata ; but the eyes are differently dis- 
posed : there are six in front, forming a transverse line ; the 
other two are posterior, and situated, one on each side, behind 
each extremity of the preceding line. The feet are long ; the 
second, and then those of the two following pair, exceed the 
first two in length. 
The species which serve as type, Senelops omalosoma, 
(Dufour, Ann. des Scienc. phys. V. lxix. 4.) has been found 
by M. Dufour in the kingdom of Valencia, but it is very rare 
there. Its body is about four lines in length, very flatted, of 
a reddish grey, with ash -coloured spots, and black rings to 
the feet ; the abdomen appears to present behind some 
vestiges of rings, forming laterally the appearances of teeth. 
It inhabits rocks, and flies with the rapidity of an arrow. It 
is also found in Syria, (Collection of M. de Labillardiere) and 
Egypt, Senegal, the Cape of Good Hope, and the Isle of 
France, furnish other species of the same subgenus. 
Philodromus, Walck., 
Differ from the two preceding subgenera, by having their 
jaws inclined upon the tongue. This part also is more high 
than broad. The eyes almost equal among themselves, always 
form a crescent, or a semi-circle ; the lateral ones are never 
placed on tubercles, or eminences ; the forceps are elongated 
and cylindrical ; the last four, or the last two feet, do not 
differ remarkably in length from the preceding. 
According to M. Walckenaer, these arane'ides run with 
rapidity, the feet extended laterally, watch for their prey, 
