426 
Plate LXIX. 
Fig. 12 .—Trigonia margariiacea, var. • acuticostata, McCoy, Co-type 
of T. acuticostata, McCoy. Cainozoie (Kalimnan series). 
Beaumaris, Port Phillip. Nat. size. 
13 a, b. — -T. margaritacea , var, acuticostata , McCoy. Living 
example (2 valves). Bass Strait. Pres, by Capt. Stanley. 
Nat. size. 
14 .—Euchelus baccatus, Menke sp. Oral aspect. Mallee bore No. 
5, 175-189 feet. Nat. size. 
15 a, b.—Natica subinfundibulum, var. crassa, Tate. a, dorsal 
aspect; b, oral aspect. Mallee bore No. 10, 220 feet. 
Nat. size. 
Plate LXX. 
Fig. 16.—Arcoperna scapha , Yerco. Mallee bore No. 3, 226 feet, 
x 4. 
17 a-c. — Condylocardia tenuicostae, Chapm. and Gabr. : a, exterior 
of left valve, x 13 ; b, cardinal area of left valve, x 26 ; 
c, cardinal area of right valve, x 26 ; a and b, holotype. 
Mallee bore No. 10, 310-320 feet; c, Mallee bore No. 
10, 225-30 feet. 
18.'— Cardita calva, Tate. An extreme variety with costation 
suppressed and concentrics dominant. Mallee bore No. 9, 
254-256 feet, x 6. 
19 a, b .— Donax Jcenyoniana , Chapm. and Gabr. Holotype : a , 
right valve, x 2 ; b, portion of the same to show colour 
bands and radial striate, x 4. Mallee bore No. 10, 
310-320 feet. 
20. — D. Jcenyoniana, Chapm. and Gabr. Para type. Interior of 
left valve. Mallee bore No. 8, 160-165 feet. Nat. size. 
21. — D. Jcenyoniana, Chapm. and Gabr. Para type. Ventral edge 
of valve interior. Mallee bore No. 10, 186-190 feet, x 8. 
22. — Liotia dennanti, Chapm. and Gabr. Holotype. Oral aspect, 
Mallee bore No. 8, 180-199 feet, x 4. 
23. — L. dennanti, Chapm. and Gabr. Paratype. Portion of 
shell more highly magnified to show intercostal, thread¬ 
like ornament. Cainozoie (Balcombian series). Lower beds, 
Muddy Creek. Ex. Dennant coll, x 8. 
24 a, b. — Teinostoma depressula, Chapm. and Gabr. Holotype : 
a, apical aspect; b, umbilical aspect. Mallee bore No. 10, 
225-230 feet, x 8. 
25 a-c.—Teinostoma pidcherrima, Chapm. and Gabr. Holotype : 
a, apical aspect, x 4 ; b, umbilical aspect, x 4 • c, surface 
ornament, x 12. Mallee bore No. 10, 225-230 feet. 
26. — Eulima pinguicula, Chapm. and Gabr. Holotype. Mallee 
bore No. 10, 225-230 feet, x 8. 
