from the Island of Madeira. 379 
The abdomen is short, broad, somewhat triangular, having its 
vertex at the spinners, convex above, thinly clothed with pale 
hairs, and projects greatly over the base of the cephalothorax ; 
the upper part is of a dark soot-colour, thickly freckled with 
yellowish white, particularly at the anterior extremity ; the sides 
and under part have a yellow-brown hue ; the former are marked 
with oblique, dark, soot-coloured lines, and the latter has a 
broad longitudinal band of the same hue in the middle, on each 
side of which there is a curved yellow line, whose posterior ex- 
tremity is the broadest ; and the colour of the spinners is dark- 
brown. The sexual organs of the specimen from which the de- 
scription was made were not fully developed ; consequently it had 
not arrived at maturity. The cephalothorax is convex, glossy, 
compressed before, rounded on the sides, which are marked with 
slight furrows converging towards an indentation in the medial 
line; it has a dull-yellow hue, and from the anterior margin, 
which is soot-coloured, a short broad streak of the same hue 
passes upwards between each lateral pair of eyes and the inter- 
mediate ones. The eyes are seated on black spots on the ante- 
rior part of the cephalothorax ; the four intermediate ones, which 
are placed on a prominence, form a square nearly, those of the 
anterior pair being rather wider apart than those of the posterior 
pair, and the eyes of each lateral pair are seated obliquely on a 
tubercle, and are the smallest of the eight. The falces are coni- 
cal, vertical, and armed with teeth on the inner surface; the 
maxillze are short, straight, powerful, and enlarged and rounded 
at the extremity; the lip is semicircular, but somewhat pointed 
at the apex, and the legs are long, robust, and provided with 
hairs and spines ; the first pair is the longest, then the second, 
and the third pair is the shortest ; each tarsus is terminated by 
claws of the usual number and structure. These parts have a 
dull-yellow hue, but the base of the lip is soot-coloured, and 
annuli of the same hue occur on the legs, those at the extremity 
of the femora of the posterior pair being the broadest. The 
palpi resemble the legs in colour, and have a curved minutel 
pectinated claw at their extremity. The sternum is ace sie 
with eminences on the sides opposite to the legs; it is of a dark 
brown colour, strongly tinged with yellow in the medial line. 
Genus TeTrRaGNnaTHA, Latr. 
Tetragnatha lineata. 
Length of the male th of an inch; length of the cephalo- 
thorax ;};; breadth ,',; breadth of the abdomen ,',; length of 
an anterior leg ,,; length of a leg of the third pair }. 
The eyes, which are unequal in size, and seated on black 
