642 Mr. Brackwazr's Descriptions of new Species of Spiders. 
developed, complicated in structure, having a bold protuberance near the 
middle, and a short, fine, curved spine at the extremity; their colour is 
dark reddish brown. Abdomen oviform, rather broader at the posterior 
than the anterior extremity, convex above, projecting over the base of the 
cephalo-thorax ; it is thinly covered with hairs, glossy and brownish black. 
Plates of the spiracles dull yellow. | 
In March 1837, adult males of this species were found under stones in the 
woods about Llanrwst. 
Genus NERIENE , Blackw, 
28. Neriéne munda. Maris cephalo-thorace mandibulis maxillis labio sterno- 
que rufescenti-brunneis; pedibus palpisque pallidé rufis; pedum pari 
imo 4toque reliquis longioribus æqualibus, 3tio brevissimo; abdomine 
nigricante. 
Length of the male $th of an inch; length of cephalo-thorax Pg; breadth I; 
breadth of abdomen 20 length of an anterior leg 4; length of a leg of 
the third pair +. 
Cephalo-thorax oval, glossy, convex above, with a slight indentation in the 
medial line of the posterior region. Mandibles strong, conical, vertical, 
provided with teeth on the inner surface, and a small, conical prominence 
in front, near the extremity, on the inner side. Maxillze powerful, greatly 
enlarged where the palpi are inserted, and inclined towards the lip, which 
is semicircular and prominent at the extremity. Sternum broad and 
heart-shaped. These parts are reddish brown, the mandibles and maxillae 
being the reddest. Legs and palpi pale red, with the exception of the 
terminal joint of the latter, which is reddish brown. First and fourth 
pairs of legs, which are the longest, equal in length, third pair the short- 
est. This spider, like the rest of the genus, has the tarsi terminated by 
three claws; the two superior ones curved and pectinated, and the infe- 
rior one inflected near its base. The intermediate eyes form a trapezoid, 
the anterior ones of which are the smallest of the eight. Third and fourth 
* For the characters of the genus Neriéne, see the London and Edinburgh Philosophical Magazine 
and Journal of Science, vol. iii, p, 187-8; and Researches in Zoology, p. 362-3. 
