104 



PEOCEEDINGS OF THE NATIONAL MUSEUM 



A a 



VOL. 81 



Figure 14. — Rhabdocali/ptus horealis, new species: a, Hypodermal pentactin, x 80+; 

 h, gastral hexactin, X 225— ; c, dermal pentactin, X 225—'; d, parenchymal oxy- 

 hexact, X 425+ ; e, oxyhexaster (form C). X 425+ ; f, oxyhexaster (form B), 

 X 425+ ; (/, oxyhexaster (form A), X 425+ ; /), microdiscohexaster, x 425— ; i, 

 discoctaster, x 250 



ally thins out at the oscular margin, which does not flare out. The 

 base can not be said to be solid, since the gastral cavity extends 

 almost to the attachment surface. 



