SILURIAN BIVALVED MOLLUSCA OF VICTORIA. 
EXPLANATION OF PLATES. 
ile 
Fig. 
1. Orthonota australis, sp. nov. [Type.] Moonee Ponds Creek. [7869.) 
Nat. size. 
2. Grammysia abbreviata, sp. nov. [Type.] S. Yarra. [7871.] x2 
3. Parallelodon spryi, sp. nov. [Type.] Wandong. [7950.] Nat. size. 
4. Leptodomus maccoyianus, sp. nov. [Type.] Broadhurst’s Creek. 
[9765] x).2: 
5. L. heathcotiensis, sp. nov. [Type.] Heathcote. [987.] sae 
6. Paleanatina cf. solenoides, J. Hall. S. Yarra. [7875.] x2. 
7. Edmondia perobliqua, sp. nov. [Type.] S. Yarra. [7876.] x3. 
8. E. perobliqua, sp. nov. S. Yarra. [7877.] X2. 
g. E. perobliqua, sp. nov. Domain Rd., S. Yarra. [2239.] x#- 
10. Sphenotus warburtonensts, sp. nov. [Type.] Right valve, internal cast. 
Reefton, Warburton.  [2240.] Nat. size. 
11. Cardiola cornucopie, Goldfuss sp. S. Yarra. [7878.] Nat. size. 
12. C. cornucopie, Goldfuss sp. Moonee Ponds Creek. [978.] Nat. size. 
13. Panenka planicosta, sp. nov. [Type]. Mount Matlock. [7879.] par 
14. P. cingulata, sp. nov. [Type.] |McMahon’s Creek, Upper Yarra. 
[2263.] Nat. size. 
15. Paracardium filosum, sp. nov. [Type.] From a wax impression of an 
external mould. Starvation Creek, Upper Yarra.  [7881.] ize 
16. P. filosum, sp. nov. Cardinal aspect of same NAGY 
II. 
17. Ctenodonta portlocki, sp. nov. Wilson’s Station, Lilydale.  [7884.] 
x2. 
18. C. portlocki, sp. nov. [Type.] S. Yarra.  [7883.] 2 
19. C. portlocki, sp. nov. S. Yarra. [7885.] ae 
20. C. portlocki, sp. nov. S. Yarra. [7886.] ize 
21. Nuculites maccoyianus, sp. nov. [Type.] S. Yarra.  [7887.] x2 
22. N. maccoyianus, sp. nov. Junction of Woori Yallock and Yarra. [7888.] 
xa 
23. N. maccoyianus, sp. nov. S. Yarra. [7889.] xo 
24. N. coarctatus, Phillips, sp. A short variety. S. Yarra.  [7890.] 
ids 
25. N. coarctatus, Phill., sp. Typical form, from W. of Mt. Disappoint- 
ment. [7891.] Keres 
26. N. subguadratus, sp. nov. W. of Mt. Disappointment. [977.] xz 
27. N. subquadratus, sp. nov. [Type.] x2. 27a, Anterior of valve 
more highly magnified to show surface ornament. N. of Yan Yean. 
[7892.] SWE 
28. N. jutsoni sp. nov. [Type.] Wandong. [7893.] <a 
29. Nucula melbournensis, sp. nov. Internal mould. SS, Yarra. [7896.] 
M2: 
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