45 



DESCRIPTION OF THE FIGURES. 



Fig. 1 . Pleurodictyum ? sp. ind. — The impression of por- 

 tions of ten corallites. The walls have entirely 

 disappeared, leaving traces of the mural pores as 

 small connecting- shafts between the corallites. 

 Zeehan. 



2. Asaphus, sp. ind. — Small pygidium consisting of 



the test seen from the inside. Zeehan. 



3. Jllcsniis Johnstoni, Eth. fil. The cephalon or 



cephalic shield, with well marked axial grooves. 

 Zeehan. 



4. Hausmannia meridianus, Eth. fil. and Mitchell. — 



Pygidium showing the largely increased number 

 of segments: cast from an impression. Heazle- 

 wood. 



5. Hausmannia, sp. ind. — A smaller pygidium, pro- 



bably of a distinct species, with the axis tubercu- 

 late. Zeehan. 



6. Hausmannia meridiajius, Eth. fil. and Mitchell. — 



The right coalesced pleurae showing the wide 

 limb. Zeehan. 



7. Cromus Murchisoni, De Koninck. — The glabella 



and portion of the fixed cheeks — x 2. Heazle- 

 wood. 



8. The same. — Pygidium, with the apex wanting — 



X 2. Heazlewood. 



9. Amphion? hrevispinus, Eth. fil. — Small pygidium, 



decorticated at the apex, but showing traces of 

 the pleural spines — x 2. Zeehan. 



10. Cornulites tasmanicus, Eth. fil. — Internal cast of 



the tube. Heazlewood. 



11. The same. — A smaller tube in the same condition. 



Heazlewood. 



12. Strophomena. — Impression of a ventral valve? 



Zeehan. 



13. Strophodonta, sp. ind. — Imperfect cast. Zeehan. 



14. The same, — Hinge-hne of Fig. 15 to show denti- 



culations — x 3. Zeehan, 



15. The same. — Partially preserved cast. Zeehan, 



