Vol. 55.] DEVONIAN K0CK8 OF NEW SOUTH WALES. 63 



EXPLANATION OF PLATES YIII & IX. 



[The specimens figured are all from the Devonian rocks at Tamworth (New 

 South Wales), and they are all drawn to the same scale of 200 diameters. 

 The slides containing these specimens are in my own collection.] 



Plate VIII. 



Figs. 1 a-1 e. Sphcerozoum sp. Detached, apparently three-rajed, spicules. 

 Fig. 2. Cenosphcera scitiUa, sp. nor. 



3. „ offinis, sp. nor. 



4. Liosphmra, sp. ind. Seen in section. 



5. EhodosphtBra Ruesti, sp. nov. Section. 



6. Spongoplegma australe, sp. noT. 



7. JDorysphcsra echinata, sp. nov. 



8. XiphosphcBra minax, sp, nov. Section. 



9. Stylosphcsra obtiisa, sp. nov. Section. 



10. ,, vetusta, sp. nov. The outer test in section. 



11. 8taurosph<sra {?) ornata, sp. nov. 



12. j, pusUla, sp. nov. 



13. Staurolojiche Davidi, sp. nov. 



14. „ tenella, sp. nov. The outer test in section. 



15. ,, laterna, sp. nov. „ „ ,, 



16. ,, scitiola, sp. nov. „ „ ,, 



17. Staurolonchidmm obliquum, sp. nov. The outer test in section. 



18. Trilonche vetitsta, gen. et sp, nov. The outer test in section, 



19. „ „ var. a. „ „ „ 

 20,21. „ Pittmani, sp.noy. „ „ „ 



22. „ elegans, sp. nov. „ ,, „ 



23. AcanthosphcBra australis, sp. nov. In section. 



24. „ Etheridgei, sp. nov. 



25. Heliosphcera rohusta, sp, nov. In section. 



26. „ Tamworthi, sp. nov. ,, 



27. ,, fenestrata, sp, nov. A specimen in which the spines are 



broken away ; also one of the spines detached. 



28. „ clavata, sp, nov. 



Plate IX. 



Figs. 1, 2. Heliosoma echinatum, sp, nov. In section. 

 Fig, 3, Heliosoma ParoncB, sp. nov, 



4. EUipsidium castanea, sp, nov. 



5. Ellipsostigma australe, gen, et sp. nov. In section . 



6. Staurodruppa prcelojiga, gen. et sp, nov. „ 



7. ,, nucula, sp, nov, 



8. ,, nana, sp. nov. 



9. Thcodiscus hastatus, sp. nov. 



10. Trochodiscus planatus, sp. nov. 



11. Triactiscus lanceola, sp. nov, 



12. JDistriactis vetusta, sp. nov. In section. 



13. Heliosestrum nigrum, sp. nov. „ 



14. Spongodiscus punctus, sp, nov. 



15. „ acinus, sp. nov. 



16. „ cribrarius, sp. nov. 



17. „ scutulatus, sp. nov, 



18. ^ongocoslia citreum, gen, et sp. nov. 



19. „ oliva, sp. nov. 



20. Spongolonche lens, sp. nov. In section. 



21. Bpongotripus patella, sp. nov. 



22. „ fenestrat%is, sp nov. 



23. Plagiacantha australis, sp. nov. 



24. Flagoniscus simplex, sp. nov. 



