330 Messrs. S. O. liidley and A. Bendy on 



Dasyclialina fragilisy n. sp. 



Irregularly ramose, subcylindrical, aculeated. Brandies 

 about I incli in diameter. Light greyish or brownish yellow. 

 Texture hard and brittle. Vents large and scattered, chiefly 

 on one side. Skeleton : — (a) dermal, an irregular network of 

 spiculo-fibre and spicules, backed behind by a coarse reticula- 

 tion of stout fibre : [h) main, an irregular reticulation of very 

 stout, compact fibre and scattered spicules ; fibi'e about '35 

 millim. thick. No distinct sheath of spongin. Spicules 

 acerate, large, slightly curved, abruptly and rather bluntly 

 pointed ; size "42 by "02 millim. 



Locality. Station 208, Philippine Islands, 18 fath. 



Dasychalina melior^ n. sp. 



Irregularly ramose, subcylindrical or subangular, coarsely 

 aculeated, but not so much so as D. fragilis. Diameter of 

 branches about \ inch. Greyish or brownish yellow. Rather 

 hard, compressible, fibrous. Vents small and shallow, chiefly 

 on one side. Skeleton : — (a) dermal, a close-meshed reticu- 

 lation of loose spiculo-fibre, echinated at nodes by bundles of 

 spicules : (Z*) main, a ratlier irregular reticulation of spiculo- 

 fibre and scattered spicules ; fibre much slenderer than in 

 D.frogil{s,\)vX\\Q distinct sheath of spongin. Spicules rather 

 slender, slightly curved, gradually sharp-pointed acerates ; 

 size -175 by -0126 millim. 



Locality. Station 208, Philippine Islands, 18 fath. 



Dasychalina fibrosa J n. sp. 



Branched, coarsely spined. Vents large and circular, 

 mainly on one side. Branch 5 to 1 inch thick. Greyish 

 yellow. Coarsely fibrous, elastic. Skeleton : — (a) dermal, a 

 coarse reticulatioii of stout spiculo-fibre, meshes triangular, 

 broken up by a much finer reticulation of very slender spiculo- 

 fibre ; {h) main, of stout, branching, and anastomosing spiculo- 

 fibre, up to "14 millim. thick, and scattered spicules. Spongin 

 very abundant in the finer dermal fibres. Spicules small 

 slender acerates, abruptly pointed, often blunted; size "1 by 

 •0032 millim. 



Localities. Off Bahia, 7-20 fath. ; Station 208, Philippine 

 Islands, 18 fath. 



Genus Chalina (Grant). 

 Form various, not tubular, smooth. Skeleton reticulation 



