NO. 2247. SPONGES FROM NORTHWESTERN PACIFIC— HOZAWA. 5 5 S 



Gastral quadriradiates (c) slightly sagittal, with slender, straight^ 

 and sharply pointed rays. Basal ray slightly shorter but not thinner 

 than paired rays, ITO-SSO^n long and 24-28/a thick at base. Paired 

 rays widely divergent, 210-440/i long and 20-24/* thick at base. Apical 

 ray thinner and shorter than facial rays, 150-170/* long and 16/* thick 

 at base. 



Triradiates of oscular margin {d) very strongly sagittal. Rays 

 nearly equally thick. Basal ray longer than paired rays, 330-500/* 



Fig. 11. — Leucandba splendens. a, dekmal teiradiatb. b, quadkiradiate of cham- 

 ber LAYER. C, GASTRAL QDADRIRADIATE. d, TRIEADIATB OF OSCULAR MARGIN. f, LARUEU 

 MICROXEA. g, SMALLER MICROXEA. All X 100. 



long and 20-24/* thick at base. Paired rays strongly diverging, 

 slightly curved backwards or nearly straight, 270-400/* long. 



Quadriradiates of oscular margin (e) very strongly sagittal, 

 slender-rayed. Basal ray straight, sharply pointed, 190-570/* long 

 and 16-24/* thick at base. Paired rays nearly as thick as basal ray 

 but slightly shorter, slightly curved, strongly diverging, 160-400/i 

 long and 12-16/* thick at base. Apical ray very short, slightly curved, 

 and finely pointed. 



Large oxea of body surface slender, nearly straight, nearly uni- 

 formly thick in the middle greater parts and sharply pointed at both 

 ends, up to 8 mm. or more long and 20-40/* thick in the middle. 



