EXPLANATION OF PLATE IL— (Continued) 



Fig. 10. D almanella ct. elegantula DahnSiii . P. 17 



10a Exterior impression of another pedicle valve. Nat. size. 

 10b Gutta percha mold of same valve. 

 10c = 10a X 3. 

 10d = 10b X 3. 



Loc: — Taihungshan, Nanchang Hsien, N. Hupeh. 

 (G. S. C. Cat. Nos. 3388a, 3383b). 



rig. 11. Rafinesquina cf. muthensis Reed P. 18 



11a Pedicle valve. Nat. size. 

 lib Same valve x 2. 



Loc: — Taihungshan, Nanchang Hsien, N. Hupeh. 

 (G. S. C. Cat. No. 3389). 



Fig. 12. Rafinesquina cf. 'muthensis Reed P. 18 



12a Another pedicle valve. Nat. size. 

 12b Same valve x 2. 



Loc: — Taihungshan, Nanchang Hsien, N. Hupeh. 

 (G. S. C. Cat. No. 3390). 



Fig. 13. Rafinesquina cf. muthensis Reed p. jg 



13a A third Pedicle valve. Nat. size. 

 13b Same valve x 2. 



Loc: — Taihungshan, Nanchang Hsien, N. Hupeh. 

 (G. S, C. Cat. No. 3391). 



(ill) 28 



