264 



Fig. 14. — Signmxinclla aihorca : a, a', styles; h, strongyle ; c, 

 oxea ; <:/, rhaphides — all x 80; d' , d", rhaphides, x 730; 

 c, sigmas, x 730. 



Fig. 15. — Biibaris reptans : a, vertical section, x 6 ; b, style, 

 X 80 ; c, tyles, x 80. 



Fig. 16, — Clathria Jiiollis : a, spined style, x 80 ; a', the same, 

 X 420 ; b, dermal oxea, x 80 ; //, the same, x 420 ; c, 

 sigma, X 730 ; (/, d', tridentate isochele, side and front 

 view (the web extending from tooth to shaft, not from 

 tooth to tooth), X 730. 



Fig. 17. — Stylostichon involutum : a, vertical section showing 

 plumose columns and superficial layer of tufts of oxeas ; 

 b, central styles, x 80 ; c, echinating styles, x 80 ; d, 

 dermal oxea, x 80 ; c, sigma, x 730, 



Fig. 18. — Histodcrnia natalense : a, amphitylotes, x 80; b, 

 acanthoxea, x 80; b' , the same, x 200; c, sigma, 

 X 730 ; d, tridentate isochele, side view, x 730 ; e, 

 spined, coiled and cruciate spicules, x 730. 



Fig. 19. — Phloeodictyon eumiUim : a, network of skeletal fibres, 

 X 5 ; 6, oxeas, x 80. 



Fig. 20. — Hircinia arbusctda : main fascicle and web-like net- 

 work, X 50. 



Published 2ist July, 1903. ' 



