630 Mr. Buacxwatu’s Descriptions of new Species of Spiders. 
dibulis maxillis labioque saturaté brunneis; palpis pedibusque rufis, 
horum pari Imo 4toque longissimis æqualibus, 3tio brevissimo ; abdo- 
mine nitente nigro. 
sd of the female 45th of an inch; length of cephalo-thorax 20; breadth 
zi; breadth of EY zo; length of an anterior leg n length of a leg 
of the third pair 3 ! 
Cephalo-thorax oval, convex above, glossy, prominent before, where the eyes 
are seated, with an indentation in the medial line of the posterior region ; 
numerous strongly marked punctures occur on the margins, from which 
rows of punctures converge to the upper part. Mandibles conical, armed 
with a few teeth on the inner surface, and inclined towards the sternum, 
which is broad, heart-shaped, and thickly marked with punctures. Max- 
illae inclined towards the lip, which is semicircular and prominent at the 
extremity. These parts are very dark brown, the mandibles and maxillae 
having a tinge of red. Legs and palpi red. The first and fourth pairs of 
legs, which are the longest, are equal in length, and the third pair is the 
shortest. Tarsi terminated by three claws; the two superior ones are 
curved and pectinated, and the inferior one is inflected near its base. 
Eyes of the lateral pairs the largest, and those of the intermediate pair of 
the anterior row much the smallest of the eight. Abdomen oviform, 
convex above, projecting over the base of the cephalo-thorax ; it is thinly 
covered with hairs, glossy, and black. Sexual organs rather prominent, 
and reddish brown. Plates of the spiracles dull yellow. 
Females of this species were taken in May 1838, under stones in a moist 
pasture near Llanrwst. 
17. Walckenaéra turgida. Cephalo-thorace mandibulis maxillis labio sterno- 
que saturaté pedibus palpisque rufescenti-brunneis; abdomine brunneo 
saturatiùs marmorato. 
In anteriori cephalo-thoracis parte maris protuberantia magna oculi- 
fera lateribus fortitér dentatis; et ante utrumque oculum paris superioris 
protuberantia magna obtusa. 
Length of the female 73th of an inch; length of cephalo-thorax ; breadth 
