423 
IDESCRIFTION OF PLATES . 1 
Plate LXXIL 
Pig. la, b, c ,— Lithothamnion ramosissimum , Reuss. Three examples 
of branchlets. 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. ramosissimum, Reuss. Portion of same branchlet in 
section, showing two conceptacles with included tetra- 
spores (T), the latter transforming into pale-green glau¬ 
conite. x 52. 
4. — Trillina howchini, Schlumberger. Lateral aspect of test 
Mallee bore No. 4, 163-170 feet, x 13. 
5 a, b. — Ammodiscus ovalis, Chapm. : a, lateral aspect of test; 
b, edge view. Mallee Bore No. 10, 160-186 feet, x 26. 
6. — Frondicularia lorifera, sp. nov. Lateral aspect of test. 
Mallee bore No. 11, 438-440 feet, x 13. 
7. — Carpenteria proteiformis, Goes. A young example, con¬ 
sisting of the rotaline basal series of chambers. Mallee 
bore No. 11, 540-542 feet, x 26. 
8 a, b.—Pulvinulina calabra, Costa sp. : a, superior aspect ; 
b, inferior aspect. Mallee bore No. 5, 163-175 feet. x 13. 
9.— -Polystomella striatopunctata, F. and M. sp., var. evoluta, 
Chapm. Lateral aspect of test. Mallee bore No. 9, 
263-273 feet, x 56. 
Plate LXIV. 
Fig. 10.— Holcotrochus crenulatus, Dennant. Lateral aspect. Mallee 
bore No. 11, 197-199. x 26. 
11 a , b. — Mopsea tenisoni, Chapm. : a, articular face of joint ; 
b, lateral surface of joint. Mallee bore No. 11, 555-560 
feet, x 8. 
12 a, b. — -M. tenisoni , Chapm. : a, articular face of joint near 
distal end of corallum; b, lateral aspect. Mallee bore 
No. 11, 544-546 feet, x 8. 
13. — M. tenisoni, Chapm. Thin slice bf a sector of a joint, mag¬ 
nified to show structure. Mallee bore No. 11, 495-500 feet, 
x 52. 
14. — Mopsea cf. encrinula, Lam. sp. (Living). A thin slice of a 
sector of a joint of the corallum, to show similarity ^ 
structure with that of the preceding species, x 26. 
15 a-c. — Mopsea sp., cf. tenisoni, Chapm : a-e , spicules or 
sclerodermites. Mallee bore No. 11, 546-548 feet, x 52. 
16.— M. hamiltoni, Thomson sp. Articular face of joint. Mallee 
bore No. 11, 505-510 feet, x 8. 
17 a, b. — Isis compressa, Duncan : a, lateral aspect; b, articular 
face. Mallee bore No. 11, 495-500 feet, x 2. 
18 a, b. — Antedon protomacronema, Chapm. : a, centro-dorsal seen 
from the side ; b, ventral aspect. * Mallee bore No. 11, 
430-432 feet, x 26. 
1 The author is indebted to the Council of the Royal Society of Victoria, for permission to 
reproduce here the plates of Mallee fossils, and for the loan of the process blocks. 
12637.—E 
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