Victorian Fossils. 223 



the Victorian species, and it also differs in the greater amount 

 of vesicular tissue within the tubes. Otherwise there is some 

 resemblance between them. 



S. bellensis, Eth. fil. 30 from the Silurian of the Wellington 

 Caves, N. S. Wales, has smaller calices, with more regular 

 circular openings. The same close contiguity is observable in both 

 species. 



Occurrence. — The type specimen is from the grey limestone 

 of Loyola, near Mansfield, and was presented by the Rev. Robert 

 Thorn, after whom the coral is named, in recognition of his 

 successful work in discovering many interesting fossil remains 

 in the palaeozoic rocks of Victoria. 



Also found in the limestone of Cave Hill, Lilydale ; several 

 specimens presented by C. S. Buckley Esq. Silurian (Yeringian). 



EXPLANATION OF PLATES. 

 Plate IX. 



Fig. 1. — Favosites forbesi, Edwards and Haime. Fractured 

 vertical section of corallum. Silurian (Yeringian). Cave 

 Hill, Lilydale. Plesiotype. C. S. Buckley coll. Nat. size. 



Fig. 2. — F. forbesi, Ed. and H. Fractured transverse section of 

 another specimen. Silurian (Yeringian). Cave Hill. 

 Lilydale. Plesiotype. C. S. Buckley coll. Nat. size. 



Fig. 3. — Alveolites regularis, sp. nov. Calicular aspect. Silurian 

 (Yeringian), Cooper's Creek, Thomson River, Gipps- 

 land. Paratype. Rev. A. W. Cresswell coll. Nat. size. 



Fig. 4. — Pleurodictyum megastomum, Dun. Base of corallum 

 with wrinkled epitheca, showing Spirifer at centre ; also 

 another adjacent example. Silurian (Yeringian). Hughes' 

 Quarry, near Lilydale. R. H. Annear coll. Nat. size. 



Fig. 5. — P. megastomum, Dun. Wax squeeze from fig. 6, show- 

 ing positive appearance of corallum. x j.. 



Fig. 6. — P. megastomum, Dun. Mud cast of corallum. Silurian 

 (Yeringian). Kinglake West. A. M. Savige coll. x f. 



Fig. 7. — Michelinia progenitor, sp. nov. Fractured surface, trans- 

 verse section. Silurian (Yeringian). Cave Hill, Lily- 

 dale. Holotype. R. H. Annear coll. Nat. size. 



30. Rec. Geol. Surv. N.S. Wales, vol. V., pt. 4, 189S, p. 150, pi. XVI. 



