362 G. M. Maplestone: New or Little-known Polyzoa. 



Another very different form occurred in some material dredged 

 off the coasts of New South Wales. It was spindle, or cigar-shaped, 

 with a very irregular, nodular surface. It was 3 cm. long, 7 mm. 

 wide at the truncated end; tapering to a rounded point at the 

 other end. It had a single conical pit in the truncated end of a 

 larger size than those in the other specimens, but evidently caused 

 in a similar way. 



EXPLANATION OF PLATE. 



Fig. 1. — Digenopora latissima, x 30. 



Fig. la.- — Do. do. do., ooecium, x 30. 



Fig. 2. — Schizoporella bacata, x 24. 



Fig. 2a. — Do. do. incomplete ooecium, x 24. 



Fig. 3, — Do. complanata, x 24. 



Fig. 4. — Mucronella ovifera. x 24. 



Fig. 5. — Dimorphocella portmarina, x 24. 



Fig. 6. — Selenariopsis gabrieli, portion of zoarium, x 5. 



Fig. 7. — Do. do. section of zoarium, x 20. 



Fig. 8. — Do. do. basal surface of zooecia, x 20. 

 "o " do. do. of ooecium, x 30. 



Fig. 9. — Do. do. upper sui-face of zooecia, x 20. 

 " o " do. do. of ooecium, x 20. 



Fig. 10. — Do. do. upper surface of zooecia, x 20. 

 " a " avicularian cell 

 " o " ooecium 



Fig. 11. — Parmularia obliqua var. lobata 



various forms of zoaria, nat. size. 

 " a " zoarium, with ooecia. 



