HORN EXPEDITION-MOLLUSCA. 
219 
14 .—Stenogyra interioris. 
a, front view ; ornament, highly ornamented. 
\h.—Pupa contraria^ Smith, dextral form (/*. beltiana, Tate). 
a, b, front and back views. 
Plate XIX. 
16. —Pupa ischna, Tate. 
a, b, front and back views. 
17. — Pupa contraria^ Smith, sinistral form (P. eremicola, Tate). 
18. — Pupa Jiculnea, Tate. 
a, back view; aperture. 
19. — Pupa larapinta, Tate. 
a, back view; b^ aperture. 
20. — Pupa mooreana, Smith. 
a, front view, showing aperture. 
21. — Succinea interioris^ Tate. 
</, b, front and back views. 
22. — Planorbis gilberti, Dunker. 
Lateral aspect of body-whorl, seen from the front. 
23. — Planorbis fragilis, Brazier. 
Lateral aspect of body-whorl, seen from the front. 
24 — Glyptorhagada clydonigera, Tate. 
25. — Isidorella 7ieivcombi, forma inflata ; dorsal view of head. 
26. — Thersites adcockiana, Bednall. 
a, al, lateral and basal aspects of a planulate variety; b, lateral aspect of 
a corrugated variety; c, lateral view of a subplanulate variety. 
27. — Angasella arcigerens^ Tate. 
a, b, e, dorsal, lateral and ventral aspects. 
28. — Thersites wilpenensis, Tate. Eyre’s Sand-patch, W. Australia. 
a, b, ventral and lateral aspects. 
ee2 
29 .—Angasella oligopleura, Tate. Flinders Range, S. Austi’alia. 
<7, bf dorsal and lateral aspects. 
