188 Frederick Chaimmn : 



Genus MAGA SELLA. DalL 

 Magasblla luxata, Tate. 



MagaseUn lunnfa, Tate, 189^. Trans. R. Snc. E. Austr., 

 voL xxiii., p. 250, pi. viii.. fi<4s. .3, '.\«. 

 It is interesting to note the (tccunence of tliis i-ace form in the 

 present series, especially as it was previously found in sonu- South 

 Australian bores, viz.. Croydon Bore, near Adelaide, at 400 to 1230 

 feet, and Murguidawa Bore, near Wellington, at 213 feet. Tate 

 also records the species from Belmont, near Geelong, and from the 

 Murray River Cliffs at Mann van. 



Occurreure.—B(n-e !). 315-325 feet; 11. 560-565 feet. 



EXPLANATION OF PLATES. 

 Plate XVI. 



Fig. 1 a, h, c. — Lithothamnion rdinoxissi^mni, Reuss. Three 



examples of bianchlets. Mallee Bore No. 5. 163-175 



feet. X 4. 

 2. — L. ramosissimum, Reuss. Vertical section of a branchlet, 



showing variable cell-dimensions. Mallee Bore No. 3, 



226 feet. x 26. 

 3. — L. raiii(>.sixsinium, Reuss. Portion of same branchlet in 



section, showing two conceptacles with included tetra- 



spores (T). the latter ti-ansforming into pale gieen 



glauconite. x 52. 

 4. — Tr'iUiiKi lioii'clii ni, Schlumbergcr. Lateral aspect of test. 



Malice Bore No. 4, 163-1 TO feet. x 13. 

 h a, h. — AniDKxJixru^ oval is, s]). nov. : a, lateral aspect of 



test; h. edge view. Malice Bore No. 10, 160-186 feet. 

 X 26. 

 ■&.—F ri)iidicid(iii(i lorifeid, sp. nov. Lateial aspect of test. 



Mallee Bore. No. 11. 43S-440 feet. x 13. 

 7. — Carpeiiterid jirofriforiN/s, (iocs. A young t'xaiiii)lc. con- 

 sisting of the rotaline basal series of chambers. Mallee 



Bore No. 11, 540-542 feet, x 26. 

 8 a, h. — Pidvinulina calahra, Costa sp. : a, superior aspect; 



It. inferior aspect. Mallee Bore No. 5. 163-175 feet. 

 X 13. 

 i). — Fol;ish)iii('lhi sfn'<ifo/)>i/icfaf(i. F. and .M . sp.. viw. tro/iitn, 



var. nov. Lateral aspect of test. .Malice bore No. 9, 



263-273 feet. x 56. 



