822 REV. O. P. CAMBRIDGE ON SINAITIC SPIDERS. (Dec. 6, 
remaining two issue from the hinder portion of the abdomen ; they 
are about the length and strength of the two foremost, and are 
rather divergent from each other ; all of them have a slight tendency 
upwards and are furnished rather thinly with bristly hairs: the 
fore margin, between the two foremost spines, is curved and in- 
dented in the middle; parallel with it is a row of the usual ten 
round impressed punctures, two others are behind each of the 
intermediate spines, a transverse row of five occupies the hinder 
margin, and four in a trapezoid, widest behind, occupy the centre ; 
the upperside is of a bright rich orange-yellow, with two broad 
parallel transverse bands of blood-red tinged with carmine, con- 
necting each of the fore pairs of spines in which they meet, the 
spines being strongly suffused with deep red-brown; one indistinct 
narrow transverse bar of cinnabar-red connects the hind marginal 
row of impressed spots ; and the bases of the two hinder spines, with 
a considerable portion of the immediately surrounding surface, are 
also of the same blood-red colour. The abdomen might almost be 
described as alternately barred, on the upperside, with transverse 
bars of red and yellow; the underside is bright yellow, strongly 
striated and intersected with black, going off into red near the 
spines ; the spinners are black ; and between them and the epigyne 
is a conical, prominent, corneous-looking, shining prominence which 
is also of the same colour. 
A single example of this species was captured in a geometric web 
in a mangrove-swamp, inland from Massowah; it is allied closely 
to Gasteracantha sanguinolenta (Koch), but may easily be distin- 
guished by the greater proportional breadth of the abdomen and 
the greater length of the spines with which it is armed. 
Family Lycosiprs. 
Genus Lycosa. 
Lycosa PRELONGIPES, n. sp. (Plate L. fig. 3.) 
Male adult, length 33 lines, length of a leg of the posterior pair 
nearly 12 lines. 
This Spider is almost entirely of a brightish sandy-yellow colour ; 
the cephalothorax has two broad longitudinal lateral brown bands 
having a yellow lateral margin on each side, and a broad central one ; 
the last strongly constricted or indented near the middle at the 
junction of the caput and thorax, and enlarged at the middle of the 
thoracic portion, narrowing again at its posterior extremity ; the 
region of the eyes is blackish, and the whole of the cephalothorax is 
thinly furnished with greyish hairs ; the form of the cephalothorax 
is peculiar, the normal, lateral, oblique indentations which indicate 
the junction of the caput and thorax being very strong and forming 
a marked constriction, the thoracic portion being rounded (and, 
indeed, somewhat gibbous) in consequence, and leaving a dip or 
hollow between its highest point and the ocular region. 
The four hinder eyes are unusually large, and form very nearly a 
square, the two foremost being the largest ; the two centrals of the 
