EXJM.AxNATKJN OF PIATE II. 
UXIO(I) WlAXA-MATTEN'.SIS, Etli., ;jiu\ 
Fig. 
1. 
Lateral view (the dotted dorsal margin 
is not straight enough) ... 
X 2 
Fig. 
2 
Dorsal view, with the hinge, ligament. 
and j(ro])ortionate thickness 
X 2 
Fig. 
o 
Portion of the surface ornament 
X 4 
Fig. 
4. 
Another specimen, crushed, and the umbo to .some extent j)inched up 
X 2 
Figs. 1-4 are from Waterloo specimens. 
UXIUNKLLA (JaRNEI, jw. 
Fig. 5. Latei'al view, in which the straight dorsal or cardinal margin is visible ... x 2 
Fig. 6. Dorsal view of the same, showing the prominent iimbonal or diagonal ridge, and 
the relative convexity of the. valves ... ... ... x 2 
Fig. 7. Lateral view of another example ... ... ... ... ... ... x2 
Lxioxeela Bowralexsis, Eth.,j)ir 
Fig. S. An internal cast, lateral view, showing the impression of the ridge bounding the 
anterior adductor on its posterior side ... ... ... ... ... x3 
Fig. 9. The united valves viewed partially from above, with eroded umbones ... x 3 
Fig. 10. Dor.sal view of a small example, illustrating the general convexity of the valves 
and thickness of the test ... ... ... ... ... ... x 3 
Fig. 11. A small specimen, with the cavity of the ridge bounding the anterior adductor 
impression, and the umbonal muscular scars visible ... 
Fig. 12. Dorsal margin of a cast showing the intlection of the hinge line ... 
Fig. 13. A large and very nasute variety showing the umbonal scars 
Fig. 1 4. Dorsal view of the same 
Figs, u-7, S-14 are from Ifowral specimens. 
Tremanotus MAiDEXf, Eth.,j'nr. ... 
Fig. 15. Lateral view, with the trumpetdike mouth and peripheral apertures. 
Fig. 16. The opposite side, showing traces of spiral striax 
Fig. 17. Front view of last whorl, with the peripheral apertm’es. 
X A 
X 2 
X 2 
X 2 
Page 
10 
14 
13 
15 
Figs. of the natural size are from the Biloela specimen. 
11a 124-iSS 
