428 Mr. J. Blackwall on newly discovered species of Araneidea. 



in contact ; each of the two largest, forming the intermediate 

 row, is seated on a tubercle ; and the other four constitute the 

 posterior row, which is curved, and has its convexity directed 

 backwards. The entire group describes a sector of a circle 



• ••• 

 whose radii converge towards the frontal margin, thus ^ # . 



• • 



Maxillce long, dilated at the base, obliquely truncated at the 

 extremity, on the outer side, and inclined towards the lip, 

 beyond which they extend considerably. Lip triangular, but 

 notched at the extremity. Lec/s very long and slender ; the 

 first pair is the longest, then the second, and the third pair is 

 the shortest. 



Pasithea viridis. 



Length of the male y^ths of an inch ; length of the cephalo- 

 thorax -f^ ; breadth ^-^ ; breadth of the abdomen y^^ ; length of 

 an anterior leg IJ ; length of a leg of the third pair ||. 



The cephalo-thorax is compressed before, rounded on the 

 sides, convex, glossy, with a longitudinal indentation in the 

 medial line ; it is of a pale yellow-brown colour, faintly tinged 

 with green, and has a small black spot on each exterior angle in 

 front, immediately above the base of the falces ; the entire region 

 of the eyes is densely covered with short hairs of brilliant 

 whiteness, and the space between the posterior and intermediate 

 rows has a dark brown hue. The falces are long, subconical, 

 vertical, and, with the maxillse and lip, are of a very pale green 

 colour ; the lip is much the darkest in the middle, its apex and 

 the extremity of the maxillse being tinged with pale brown. 

 The sternum is short, broad, heart-shaped, and of a greenish- 

 white colour ; it is minutely freckled with dark brown, and has 

 an oblong spot of the same hue at its posterior extremity. The 

 legs are provided with short hairs and long, fine spines ; they 

 are of a yellov.-ish-brown colour, the metatarsi and tarsi being 

 much the darkest ; the coxae, femora and tibise are marked with 

 small dark brown spots tinged with red, and a fine red line ex- 

 tends along the under side of each femur ; the tarsi are termi- 

 nated by two curved, pectinated claws. The palpi are long and 

 of a pale yellow-brown colour, with the exception of the extremity 

 of the radial joint and the whole of the digital joint, which have 

 a pale reddish-brown hue ; the cubital joint has a long spine at 

 its extremit)^, in front ; and the radial joint, which is the longer, 

 has two long spines near the middle, one on the upper and the 

 other on the under side, and projects an obtuse apophysis from 

 its extremity underneath, whose outer side is fringed with long 

 hairs ; the digital joint is narrow at the base, and increases in 

 breadth towards the extrcmitv, which abruptly terminates in a 



