446 
that they lean towards the main fibres with their distal ends and 
with their convex sides towards the fibres; they resemble piles 
of arms, lending a very characteristical appearance to a vertical 
Fig. 5. Cinachyra novae-zealandiae nov. Fig. G. Gellius regius, nov. spec. 
spec. a. Aiiatriaene. b. Protriaene. c. Big a. Oxea. b. Sigmata. c. Toxa. 
oxeote. d. Smaller oxea. e. Bayonetfor- 
med oxeote. f. Siliceum-thread. 
section of the sponge. Small oxea and curved siliceum-threads occur 
everywhere in the sponge. 
Spicules. 1. Anatriaenes (fig. 5a). Shaft very siender, straight 
or curved in the distal part, about 2500X18 Cladi short, con- 
ical, curved, width of cladome about 68 fi. 2. Protriaenes (fig. 
