600 Mr. Blackwall's Descriptions of new Species of Spiders. 



thorax ; the posterior row is longer than the anterior one, which is situ- 

 ated just above the frontal margin ; the intermediate eyes form a trape- 

 zoid, whose anterior side is the shortest, those of tlie anterior row being 

 the smallest of the eight. Legs provided with hairs and sessile spines, a 

 longitudinal row of the latter occurring on each side of the inferior sur- 

 face of the tibial and metatarsal joints of the first and second pairs ; their 

 colour is yellowish brown ; fourth pair the longest, then the second, first 

 and third pairs nearly equal in length. Each tarsus is terminated by two 

 curved, pectinated claws, below which is a small climbing apparatus. 

 Palpi short, with a small curved claw at their extremity ; in colour they 

 resemble the legs. Abdomen oviform, hairy, slightly depressed, project- 

 ing over the base of the ccphalo-thorax ; it is yellowish brown, with a 

 dark reddish brown band above, extending nearly half its length from 

 the anterior part along the middle, the interval between the posterior ex- 

 tremity of the band and the spinners being occupied by a series of trian- 

 gular spots of the same hue ; on each side of the medial line is an iiregular, 

 interrupted, longitudinal band of a dark reddish brown colour; margins 

 of the sexual organs, and three narrow bands, situated between them and 

 the spinners, dark reddish brown. Plates of the spiracles yellowish white. 



The male resembles the female in colour. I have taken individuals of 

 this sex in autumn which had the terminal joint of the palpi much en- 

 larged, but they evidently had not attained maturity, as the palpal organs 

 were not fully developed. 



Woods in Denbighshire and Caernarvonshire are the haunts of this species, 

 which, in summer, conceals itself among the foliage. 1 have captured females 

 in the month of June whose abdomens were greatly distended with eggs. 



Fam. CiNiFLONiD^. 



Filatoria 8 ; 2 inferiora inarticulata, usque ad apices coalita. Pedum poste- 

 rioriim metatarsus calamistro munitus e seriebus 2 parallelis spinarum 

 exiguarum dense approximatarum. 



These peculiarities of structure, so strikingly characteristic, exercise a de- 

 cided influence upon the œconoiny of the Cinijîonidœ. The calamistra are 



