214 Transactions. — Zoology. 



projects over the rima genitalis ; sides of vulva below the dark 

 area covered by sub-free membranous flaps ; upper margin of 

 flaps produced into obtuse-pointed processes which curve over 

 each fovea ; hind view of corpus discloses a projecting lip, 

 about twice as broad as long, enclosed on either side by a free 

 membrane. 



A single specimen of this species was contained in Dr. L. 

 PoiveU's collection. 



Epeira powelli, sp. nov. 



Fern. — Ceph.-th, long, 3 ; wide, 2-2. Abd., long, 4-5 ; wide, 

 3-2. Legs, 1, 2, 4, 3 = 12-1, 11-2, 10-2, 6-2 mm. 



Cephalothorax brownish tan-colour ; a short, broad, yellow- 

 ish, arrow-shaped mark occurs on basal extremity of caput ; 

 areolate ; hairs white, silky, adpressed, moderately thick. 

 Broad-ovate, lateral margins of caput sharply constricted ; 

 cephalic region moderately convex ; ocular eminence promi- 

 nent ; lateral index equals space between fore-outer eyes ; 

 height of clypeus visibly exceeds diameter of an anterior 

 median eye ; thoracic depression rather deep; grooves, more 

 especially radial, somewhat shallow ; profile-line rises from 

 petiolum at an angle of 45 degrees ; falls with slight incline 

 and curve across cephalic part. 



Eyes encircled by fuscous rings ; form two recurved lines ; 

 four centrals nearly form a square ; posterior middle pair 

 largest of eight, somewhat elevated ; about their own breadth 

 and a quarter apart ; removed from side- eyes by an interval 

 sensibly wider than the space they occupy ; anterior median 

 pair one-fourth smaller than hind-centrals, separated by an 

 interval equalling their diameter and one-half, rather less 

 than that distance from hind-pair ; laterals less than half size 

 of posterior centrals, seated their breadth apart on separate 

 cup-shaped eminences. 



Falccs fulvous, probably clouded with green ; conical, 

 gibbous, inwardly inclined ; about as stout as the pars femo- 

 ralis of second leg ; as long as digital joint of palpus. 



Maxilla fulvous, lightly clouded with brown ; rather longer 

 than wide ; pointed. 



Labium darker than maxillae; subtriangular ; apex turgid. 



Sternum deep-fulvous, margins clouded ; cordate ; eminences 

 opposite coxae moderately developed. 



Legs fulvous, pea-green reflections ; tolerably stout ; hairs 

 light, fine ; spines numerous, brownish. 



Palpi fulvous ; ])enultimate and digital joints well spined. 



Abdomen oviform ; yellowish pea-green ; folium cordate, 

 lightly suffused with brown ; yellowish tint runs into a wide 

 dorsal band on posterior half ; petiole broad, margins yellow, 

 sides mottled with brown, passing into reddish-brown on 



