the ' Challenger ' Monaxonida, 343 



root- like process. Diameter of body \ inch, length of sup- 

 porting processes | inch. Pale yellow. Spicules : — (1) long 

 slender acuates of various sizes, the longest in the main fibres ; 

 (2) ^ small tridcntate inequiauchorates, length "034 to -06 

 millim. 



Locality. Station 264, North Pacific, 3000 fath. 



Gladorrhiza similis, n. sp. 



Sponge of Crinorrhiza-f orm, consisting of a conical body 

 with a root-like process depending from the centre of the base, 

 and with a fringe of long stiff supporting processes radiating 

 outwards and downwards. Diameter of base of cone ^ inch. 

 Colour dirty yellow. Spicules : — (1) very long slender acuates, 

 as usual, forming the fibres of the various processes ; (2) short 

 inflated spinulates with distinct head, sharp-pointed, length 

 from -21 to '595 millim., thickness about '016 millim., thickly 

 scattered near the surface of the sponge ; (3) tridentate equi- 

 anchorates as usual, length about •0315 millim. 



Locality. Station 281, South Pacific, 2385 fath. 



Gladorrhiza inversa, n. sp. 



Sponge of Grinorrhiza-iorm. Consisting of a small conical 

 body, produced upwards into a long slender process ; base of 

 cone nearly flat, with a fringe of short stiff processes radiating 

 outwards and downwards, and a single very short stiff process 

 projecting downwards from near the centre. Diameter of base 

 -^ inch. Spicules: — (1) large, slender, fusiform, blunt-pointed 

 acuates, size about 2*0 by "0375 millim. (but variable), 

 forming the main fibres ; (2) scattered fusiform spinulates, 

 sharp-pointed and with club-shaped heads, size about "63 by 

 •0189 millim. ; (3) tridentate equianchorates, with much- 

 expanded shaft, length *03 millim. ; (4) bihamates (?). 



Locality. Station 332, South Atlantic, 2200 fath. 



Gladorrhiza fridentata, n. sp. 



Sponge small, hemispherical. One surface slightly concave 

 with inwardly-turned margin ; the other convex, sometimes 

 attached. Height } inch, diameter ^ inch. Pale greyish 

 yellow, soft and yielding. No distinct fibres in the skeleton. 

 Spicules : — (1) long very slender spinulates, fusiform, with 

 very small head, gradually and finely pointed, size about '7 by 

 •0155 millim. ; (2) large inequiauchorates, with stout, strongly- 

 curved shaft bearing large wing-like lateral processes, and 

 with three stout sharp teeth at each end, length about "076 



24* 



