Species of Tropical African Solifuge. 263 
Solpuga Parkinsont, sp.n. (Fig. 9.) 
Colour. Carapace, limbs, mandibles, &c. a uniform ochre- 
yellow, only the ocular tubercle black. 
Closely related to S. Keyserlingti, Poe. (loc. cit. p. 86), 
from which it differs hardly in anything apart from the form 
of the flagellum. In Keyserlingii the flagellum is abruptly 
curved backwards from the base, then passes as a nearly 
straight rod upwards and backwards, becoming slenderer at 
the tip, which is delicate, sinuate, and curved downwards ; 
in the middle of its length it is finely serrate below, the serra- 
tion showing as a row of fine teeth on the outer edge of the 
upper surface * (fig. 8). In S. Parkinson?, on the contrary, 
the flagellum is less abruptly curved backwards, rising nearly 
vertically from the basal portion and passing backwards with 
a bold curve, the apex being downcurved and lamellar, while 
the serration takes the form of a denticulate crest passing 
from the anterior convex side of the flagellum to its inner 
edge, the flagellum being somewhat strongly geniculate in the 
posterior fifth of its length. 
Measurements in millimetres.—Total length 43, length of 
mandible 10°33; width of head 8, of ocular tubercle 2°5; 
length of palp 43, of fourth leg 60, of tibia of palp 14, of its 
tarsus and protarsus 13°5, of fourth leg 12°5. 
Loc. ** Gol Addeh (3000 feet alt.), 112 miles to the S.W. 
of Arregir, which lies at the foot of the Burdab range of hills, 
lat. 9° 10’ 16” N., long. 46° 10’ 35" E., in Somaliland.” 
Mr. Parkinson has kindly furnished the following notes 
respecting the habits of this So/puga and of a specimen of 
Galeodes arabs which he obtained at Arregir :—‘ About 8 P.M., 
as I was adjusting the theodolite to take the observations 
which determined the above position [7. e. of Arregir], I heard 
a slight noise as of a mouse scuttling about, and upon turning 
the lantern in the direction of the sound saw the spider 
[G@. arabs], which, upon my attempting to approach, darted 
some three yards away with a velocity difficult to follow with 
the eye. Atter repeating this manceuvre several times, it 
stopped in a hollow between three stones, and was secured. 
I have only seen these animals on stony ground at the base of 
these hills, and they may be heard at night as I have 
* N.B.—In the figure of the mandible and flagellum of this species 
published on pl. iv. fig. 5 of Ann. & Mag. Nat. Hist. (6) xvi. (1895), 
the flagellum lies too close to the upperside of the mandible and the 
teeth of the fang are too large, the terminal fang being not sufficiently 
prolonged. Moreover, in the description no mention is made of the 
serration of the flagellum, 
