124 Trcuisactions. — Zoology. 



minute flecks of a dirty skiu-colour. In places these flecks 

 coalesce into narrow bars, transverse above and below, and 

 oblique at the sides; but both flecks and bars are invisible 

 to the naked eye. Spinners and branchial opercula pale- 

 yellow. 



Cephalothorax about Imni. longer than broad, forming in 

 outline an oval truncated in front ; from the fovea, which is 

 deep and semicircular, with the curve directed forwards, radi- 

 ate eight grooves, three running down each side, and two 

 down the posterior slope. In front of the fovea are two yellow 

 spots, one on each side of the thoracic median line, from each 

 of which springs a stout bristle. There are also bristles on 

 the ocular area ; but tlie rest of the surface is quite glabrous. 

 The caput is moderately prominent. 



Both rows of eyes curved forward, the posterior more 

 curved and shorter than the anterior row ; front central eyes 

 round, of a dark colour, placed on black prominences, and 

 nearer to each other than to the laterals of their own row ; 

 the latter of a pale colour, considerably larger than the cen- 

 trals, oblong, each placed obliquely in front of a black tubercle 

 behind which are situated a ceutral and a lateral of the pos- 

 terior row ; eyes of the latter row minute, subequal, longer 

 than wide, opalescent (the centrals brilliantly so), and posited 

 obliquely, the centrals looking inwards and the laterals out- 

 wards, the former being very distant from each other, and 

 each quite near the lateral on its own side ; posterior laterals 

 nearer to anterior laterals than the latter are to the fore cen- 

 trals. 



Falces sparingly hairy at the fore extremity, prominent, 

 powerful, knee-shaped ; groove toothed, teeth on outer side 

 small and subequal, those on the inner side large and unequal, 

 the one nearest the fang the largest, and the basal one the 

 smallest. 



Maxilhie very divergent, and of the same width through 

 their whole length, outer side longer than inner, the latter 

 furnished with a long fringe ; the inner half of the inferior sur- 

 face studded with short tooth-like spines. 



Labium about half as long as the maxillte, slightly convex, 

 triangular in outline, rounded at tbe apex, the anterior part of 

 it studded with spines like those of the maxillae. 



Sternum ovate in outline, truncated in front, pointed be- 

 hind, sinuated at the sides, having two small depressions, one 

 on each side, not far from the margin, between the 2nd and 

 3rd pair of legs, and sparsely hairy. 



Abdomen oblong-oval, convex, and copiously furnished with 

 short stoutish hairs ; spinners compactly grouped, the inferior 

 pair slender and of moderate length, the superior pair stout 

 and twice as long as the inferior. 



