ARTICULATA. 125 
including the rostrum and the four anterior feet. The larvee have six feet, 
and resemble small drops of red sealing wax affixed to the legs and other 
parts of Phalangium (pl. 77, fig. 62) and various insects. These were 
once considered to be a distinct genus, under the name of Leptus. 
Orper 8. ADELARTHROsoMATA. The animals of this order respire by 
tracher, and have cheliform mandibles. They are included in the three 
families : Phalangiide, Cheliferide, and Galeodide. 
Fam.1. Phalangiide (pl. 'T7, figs. 62, 68). This family includes the 
slender footed spider-like animals known as harry-long-legs. The mandibles 
are cheliform and the palpi filiform, the eyes two, central, and near 
together, and the abdomen annulate and closely united to the cephalothorax. 
They feed upon small insects, avoid the full glare of the light, and are 
harmless, except that some of them have the power of exuding a disagreeable 
scent when disturbed. The slender feet are much like antenne, the tarsus 
being in some cases composed of fifty articulations ; and when the animal is 
standing or walking, several of the feet are held up or moved about, as if for 
the purpose of feeling and ascertaining the presence of objects. Some 
authors place the Phalangude in one order, and the remaining families 
(including the Scorpionede and Phrynide) in another, under the name of 
Solifuge. 
Fam. 2. Cheliferide. The genus Chelifer (pl. TT, jig. 48 a, natural 
size, and 61, natural size) is remarkable for the large cheliform palpi 
resembling arms, which give the species the appearance of minute scorpions, 
except that they have not the tail of the latter. They feed upon minute 
animals, living in the woods or in houses, especially among books (as noticed 
by Aristotle), where they are rather beneficial than hurtful. They run 
rapidly backwards, forwards, or sideways, like the crabs; they are oviparous, 
have two or four eyes upon the cephalothorax, an annulate abdomen, and 
the eight feet are of equal size. Say describes two species inhabiting the 
United States. 
Fam. 3. Galeodide. Galeodes (pl. 77, jigs. 49, 50). The animals of 
this family resemble large hairy and fierce looking spiders. The palpi are 
long and resemble feet, and the abdomen has nine or ten articulations. The 
generic name Galeodes was proposed by Olivier, in 1791, and Solpuga by 
Herbst, in 1797, according to Agassiz Vomenclator, so that the former has 
priority. The two terms are, however, used by Koch for different genera. 
The body is divisible into head, thorax, and abdomen, and the eyes are 
situated upon the head. The first pair of feet, as well as the palpi, are 
without nails, although the remaining feet have them. They run with great 
agility, and when interrupted they stop, raise the head, and place themselves 
upon their posterior feet in a menacing attitude. Lucas, who was sent by 
the French Government to investigate the entomology of Algeria, says, that 
when about to catch one of them, it leaped upon his arm and bit the sleeve, 
maintaining its hold until it was secured. According to Captain Hutton’s 
observations, these animals are probably not poisonous, as a lizard bitten by 
one of them did not die. Another lizard three inches long, exclusive of the 
tail, was almost entirely devoured by one of them, which gorged it so much 
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