Solifuge: in the British Museum. 95 
with its large fang recurved; the protarsus of the palp, too, 
has spines mixed up with the hairs of its lower surface, 
and is less arcuate. Moreover, all the appendages are stouter 
and shorter. 
Gluvia tolteca, sp. n. 
(Preliminary description.) 
3g .—Colour. Head ferruginous, anteriorly infuscate ; free 
thoracic segments and abdomen black above, clothed with 
white hairs; appendages of a uniform pale ferruginous tint, 
only lightly infuscate. 
Mandible as in G. nigrimanus, except that the superior 
edge of the upper fang follows the slope of the basal portion 
and the lower edge is less carinate; the area just above the 
joint of the lower fang armed with two series of teeth, of 
which the outer consists of five and a series of minute den- 
ticles and the inner of five ;,the lower jaw armed with two 
large teeth and two small ones between them. Palpi un- 
spined, furnished with long hairs. 
Loc. Mexico. A single male example. 
PARACLEOBIS, nom. nov. 
=Gluvia, Simon, Ann. Soc. Ent. Fr. 1879, p. 127 &c.; not Gluvia 
C. Koch, Arch. Nat. 1842, p. 355, and Die Arachn. xv. p. 95. 
Since none of the species referred by C. Koch to Gluvia 
are generically identical with those that Simon referred to 
this genus, it is clear that the latter are nameless. 
I propose that Paracleobis be established for their reception, 
with the Spanish species dorsalis, Latr., as the type; and, 
since Mons. Simon recharacterized Gluvia as Datames, the 
two must be regarded as synonyms, Gluvia having the 
priority. 
Paracleobis Balfourt, sp. n. 
?. Colour entirely pale yellow, with the exception of the 
black ocular tubercle, black mandibular fangs, and a broad 
black band round the distal half of the protarsus of the palp ; 
distal extremity of the tarsus pale. 
Carapace with its anterior border lightly convex ; tubercle 
with a series of hairs surrounding the eyes in the inner side 
and a cluster in front, of which two are stronger than the 
rest; space between the eyes about equal to a diameter. 
Mandibles with long, sharply defined, stridulating ridges ; 
the lower jaw dentate, somewhat as in P. dorsalis, but in the 
