342 Messrs. S. O. Kidley and A. Dendj on 



•45 millim. in diameter, visible to the naked eye as a minute 

 lighter-coloured oval spot on the surfaee. Colour due to very 

 numerous minute cells of a blackish-green colour. Spi- 

 cules : — (1) acuate or subspinulate, sharp-pointed, usually with 

 several slight bulbous inflations along the shaft, size '3 by 

 •0063 millim. ; (2) palmate equianchorates, large, and of 

 peculiar shape, length 'l millim., the young forms very short 

 and broad, with the two front palms united by their apices ; 

 (3) very minute, slender equianchorates, of the ordinary 

 " Amphilectus " type, length 015 millim. 



Locality. Station 192, S.W. off New Guinea, 140 fath. 



Genus Cladoerhiza (Sars). 



External form usually definite and symmetrical. Skeleton- 

 spicules acuate or (and) spinulate. Characteristic flesh- 

 spicule inequianchorate, with three or more claw-like teeth at 

 each end, and a curved shaft expanded laterally into wing- 

 like processes, especially near the large end. 



Cladorrhiza moruliformtSj n. sp. 



A small globular head perched on the summit of a stalk. 

 Head conulose, owing to the ends of radiating skeleton-fibres ; 

 like a mulberry ; diameter, excluding the conuli, y^ inch. 

 The stalk is prolonged through, and projects for a short way 

 above, the head. Colour (dry) white. Skeleton composed 

 chiefly of a main longitudinal axis giving oft' stout radiating 

 fibres in the head. Spicules : — (1) straight, slender acuates, 

 reaching over 2*0 millim. long, diameter '05 millim., has- 

 tately pointed ; (2) inequianchorates wnth three prominent 

 teeth at each end, length "063 millim. j (3) large, contort 

 bihamates, size up to '35 by '145 millim. 



Locality. Station 157^ Southern Ocean, 1950 fath. 



Cladorrhiza longipinna* ^ n. sp. 



Consisting of a subglobular body, somewhat flattened below, 

 with a fringe of very long fine supporting processes (twenty- 

 five or thirty) projecting outwards and downwards, while a 

 circlet of very short stift" processes crowns the summit of the 

 body. From the centre of the lower surface depends a long 



* For the very remavliable external shape -which characterizes this and 

 certain other species we propose the name " Crinorrhiza-furm " after 

 Schmidt's genus Crinorrhiza. The function of the long radiating pro- 

 cesses is evidently to support the sponge on the soft mud on which it 

 lies. 



