34 AKT. 5. — SANn HÔZAWA : 



colour in alcohol is greyish white. The texture is rather soft and 

 not very compact. 



The second specimen (Sei. Coll. Spec. No. 19) consists of a 

 single cylindrical person with the lower parts torn off. It is 

 37 nmi. long and 10 mm. broad in the broadest part, where the 

 thickness of waU is less than 2 mm. The osculum, turned towards 

 one side, is irregular in shape and measures about 3 mm. across 

 in a way. Its margin is very thin and without an obvious fringe 

 or collar. The colour in alcohol is greyish white ; tlie texture is 

 firm and elastic. 



The third specimen (Sei. Coll. Spec. No. 28 ; PI. I., fig. 9) is 

 rather spindle-shaped and shghtly laterally compressed. It meas- 

 ures 80 mm. in total length, 12 mm. in greatest breadth, and 

 about 1 J mm. in maximum thickness of wall. The osculum at 

 the upper truncate end is almost naked, with thin irregularly 

 undulating margin. It leads into a wide and deep gastral cavity. 

 The narrowed stalk-like base of the sponge is provided with a 

 number of small irregular processes for attachment. The colour 

 in alcohol is white and the texture is fairly firm and elastic. 



The following description is based on the type (first) speci- 

 men. 



Canal system (PI. n., fig. 17). 



The canal system stands somewhat intermediate between 

 syUeibid and leuconoid types, approaching more nearly the latter 

 than the former. The dermal pores, measuring 80-150 /-« in dia- 

 meter, are closely distributed all over the surface. Canals starting 

 from several pores join together to form very wide inhalant canals 

 which run deep into the wall. The exhalant canals are also very 

 wide and extend through the greater part of the wall thickness. 



