155 



14. Crassatella cormgata, Tate. Enlarged. 



15. Barbatia consutilis, Tate. 



10. Barbatia crustata, Tate. Enlarged. 



17. Gouldia lamellata, Tate. Much enlarged. 



Plate III. 



1. Lima linguliformis, Tate. Muddy Creek. a, ISTatural 



size ; h, magnified portion near tbe front. 



2. Pecten subbifrons, Tate. Adelaide. 



3. Vulsella laevigata, Tate, a, Exterior view, natural size; 



I, binge-line, enlarged. 



4. Modiolaria Corioensis, Tate. Miicb enlarged. 



5. Modiolaria subgranosa, Tate. Mucb enlarged. 



6. Pecten consobrinus, Tate. Aldiuga. 



7. Modiolaria singularis, Tate. Mucb enlarged. 



8. Limea alticostata, Tate. Mucb enlarged. 



9. Dimja dissimilis, Tate. Sligbtly enlarged. Muddy Creek. 



a, Exterior view of attacbed valve ; h, interior view of tbe 

 same ; c, exterior of free valve. 



Plate TV. 



1. Ostrea bippopus, Tate. «, Yiew from above ; h, side view. 



2. Nucula Morundiana, Tate, a, End view ; I, seen from 



above ; botb enlarged ; c, magnified view of surface. 



3. Kucula Atkinsoni, B. M. Johnston. Eiver Murray Cliffs. 



a, Yiew from above ; I, end view ; botb natural sizes ; 

 G, magnified view of surface. 



4. Nucula fenestralis, Tate. Mucb enlarged. 



5. Nucula semistriata, Tate, a and l, Mucb enlarged views. 



6. Pecten spondyloides, Tate. A small example. Aldinga 



Cliffs. 



7. Pecten spondyloides. Yariety from Mannum. 



8. Lima (Limatula) Jeffreysiana, Tate. Eiver Murray Cliffs. 



Plate Y. 



1. Placunanomia sella, Tate. Eiver Murray Cliffs, a, Attacbed 



valve ; h, exterior view of foramen witb tbe sbell broken 

 away, skewing tbe margin of tbe plug-sbeatb ; c, interior- 

 view, sbowing plug-sbeatb. 



2. Leda planiuscula, Tate. Natural size in outline, and much 



enlarged view. 



3. Leda obolella, Tate. IN'atural size in outline ; a and h, ex- 



terior and umbonal aspect, enlarged. Muddy Creek. 



4. Pecten palmipes, Tate. Left valve. Editbburg. 



5. Leda crebricostata, T. Woods. jSTatural size in outline ; a> 



and h, exterior and umbonal aspect, mucb enlarged. 



