DESCRIPTION OF PLATES. 161 



PLATE IX. 



1. Jlicropuj-ella malusii. 



2. Microporella rudis. 



3. Microporella ciliata, 3« single zoojcuini, sliewing pore and aviculariuni. 

 '1. Adeona cellulosa, natural size, 4a portion magnified. 



5. Adeona grisea. 



6. Adeona grisea, car. interdlgitata. 



7. Adeona obliqna, natural size. 



8. Adeona ohliqua, portion of another specinnjn magnitied, 8a edge view shewing 



vicarious avicularia, 86 posterior view two zooecia. 



9. Adeona obliqna, another specimen. 



10. Adeona ohliqua, another specimen. 



11. Adeona ohliqua, anotlicr specimen, 11« posterior view of single zowcium. 



12. Adeona symmetrica, natural size, 12rt magnified. 



13. Adeona, mucronata, natural size, 13« magnified. 



14. Adeona mucronata, another specimen, shewing numerous avicularia. 



15. Adeona clavafa, natural size, 15« magnified. 

 IG. Adeona clacata, another specimen. 



17. Adeona clavata, another specimen. 



18. Adeona clavata, another specimen, natural size, 18«, magnified, 18/0 thyrostome 



more highly magnified, shewing commencement of avicularia. 

 li). Tessaradoma magidrostris, group of zocecia, 19« single zocEcium more highly 

 magnified. 



20. Tessaradoma elevata, 20 posterior view of three zocecia. 



21. Hianlopora lioersidgei, natural size, 2 la magnified. 



22. Iliantopora lioersidgei, car. porosa, natural size, 22a magnified. 



23. Adeonella triton, shewing ooecia, 23a three zooecia, one shewing oral denticles. 



