08 
K. L. PRENDERGAvST. 
PLATE IV. 
Figs. ]-(>. Taeniothaerus subquadratus (Morris). 
1. Braeliial vahCj exterior. XT.W.A. 12396. 
2. Brachial valve, interior. IT.W.A. 21247. 
3. Interior of pedicle valve. P.W.A. 4786. 
4. Pedicle valve, exterior. U.W.A. 20447. 
■■). Lateral view. U.W.A. 20447. 
6. Hiiige-linc of crushed s]>ecinien. IhW.A. P. 21. 
Figs. 7-10. Anlosteges spinosus Ilosking. 
7. Pedicle valve. Ans. Alns. F. 37710. 
*S. Lateral view showing recurved area. Aus. IMiis. F. 
9. Brachial valve. Aus. Mu,s. F. 3S444. 
10. Ih'dicle valve. Aus. Mus. F. 3S444. 
Figs. 11-13. Krotovia spinulosa (-1. Howerby). Aus. Mus. 38446. 
11. Lateral view. 
12. Jhnlicle valve. 
13. Brachial valve. 
All tigures reduced to H 
nat. size. 
