BRITISH SPONGIADiE. 373 



IsoDiCTYA, Bowerbank. 



Section * Skeleton spicula, acerate. 



1. Isodictya einerea^ Bowerbank. 



2. — Peachii, Bowerbank. 



3. — permoUis, Bowerbank. 



4. — simulo, Bowerbank. 



5. — varians, Bowerbank. 



6. — rosea, Bowerbank. 



7. — elegans, Bowerbank. 



8. — McAndrewii, Bowerbank. 



9. — indefinita, Bowerbank. 



10. — parasitica, Bowerbank. 



11. — indistincta, Bowerbank. 



12. — densa, Bowerbank. 



13. — anomala, Bowerbank. 



14. — simples;, Bowerbank. 



15. — jiigosa, Bowerbank. 



16. — pallida, Bowerbank. 



17. — fistulosa, Bowerbank. 



18. — Gregorii, Bowerbank. 



19. — fallax, Bowerbank. 



20. — robusta, Bowerbank. 



21. — pocillum, Bowerbank. 



22. — mammeata, Bowerbank. 



23. — simulans, Bowerbank. 



24. — dichotoma, Bowerbank. 



25. — palmata, Bowerbank. 



26. — pygmea, Bowerbank. 



27. — ramusculus, Bowerbank. 



28. — clava, Bowerbank. 



18 



