NO. 2247. SPONGES FROM NORTH WESTERN PACIFIC— HOZAWA. 



533 



Subgastral triradiates (c) sagittal, with wide oral angle. All 

 rays equally thick, lying nearly in the same plane and gradually 

 tapering to sharp point. Basal ray slightly longer than paired 



Fig. 3. — Hetehopia medioarticulata. a, subdermal triradiates. i, tobar trira- 



DIATES. C, SUBGASTRAL TRIRADIATE. (l, GASTRAL TRIRADIATE. 6, GASTRAL QDADKI- 

 RADIATES. e', APICAL RATS OF GASTRAL QUADRIRADIATES. f, DERMAL OXEA. g, TRIRA» 

 DIATES OF OSCULAR MARGIN. U, QUADRIRADIATE OF OSCULAR MARGIN. i, OXEA OF OSCO 

 LAR MARGIN. All X 150. 



rays, straight, l70-200[x long and 10-12pL thick at base. Paired rayj« 

 nearly equal, curving first backwards, and then very slightly forwards, 

 90-140tJL long and 10-12(1 thick at base. 



