250 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 26 



Fig. 1. Sessihugula translucens new species, outline of zooecium near 

 edge of zoarium, with ovicell and paired, stalked avicularia 

 on the gymnocyst. 



Fig. 2. The same, old and fully developed zooecium in a more 

 crowded part of the zoarium, with strong, jointed spines 

 which are sometimes branched ; small avicularia. Below an 

 avicularium with the mandible everted. 



Fig. 3. The same, dorsal view showing overlapping of zooecia and 

 the arrangement of communication pores. 



Fig. 4. B^flTzia //jr/mf ma (Heller), frontal view. 



Fig. 5. The same dorsal view showing dorsal spines and the trans- 

 formation of one into a holdfast. 



Fig. 6. Beania alaskensis new species, side view showing the elongate 

 terminal spines and thick basal tubular portion. 



Fig. 7. The same, frontal view showing the strong terminal spines 

 and the twinned lateral ones. 



Fig. 8. Beania mirabilis Johnston, side view showing narrow prox- 

 imal tubule, small terminal and single lateral spines. 



