ART. 12 



HEXACTINELLID SPONGES OKADA 



79 



Figure 9. — Aulosaccus albatrossi, new species : a, Hypodermal pentactin, x 100 ; b, 

 proximal part of hypodermal pentactin, X 100 ; c, dermal pentactin, X 200 ; d, 

 dermal stauractin, x 200 ; c, gastral hexactin, X 200 ; f, gastral hexactin, X 200 ; 

 g, small gastral hexactin, X 200 ; h, dermal diactin, X 200 ; i, small oxyhexaster, 



X 250 ; }, small oxyhexaster, X 320 ; k, hemihexactinic oxyhexaster, X 320 ; I, large 

 oxyhexaster, X 320 ; m, microdiscohexaster, X 320 ; n, larger microdiscohexaster, 



X 320 



suit of abrasion a curly appearance. The gastral surface is well 

 preserved. It is lined all over with a continuous layer of the deli- 

 cate endosomal skeleton. 



Table 20. — Record of specimens of Aulosaccus olbatrossi 



Sficulation. — The hypodermalia are pentactins (fig. 9, a, h) and 

 diactins. The former show essentially the same character and ar- 



