Fig. 12. PagocUspira dorothea Grabau p. 32 



The type specimen, twice enlarged. Macliiakou limestone, Tangshan, Chihli. 

 (Holotype, Coll. by Geo. B. Barbour, G. S. Ch. Cat. No. 50). 



Fig. 13. Pagodisjnm dorothea var. laxa Grabau p. 32 



The type specimen twice enlarged. Machiakou limestone, Chao-Kou-Chuang. 

 (Holotype, G. S. Ch. Cat. No. 13). 



Fig. 14. Liospira barhouri Grabau p. 33 



14a. Side view of a nearly perfect high-spired form x 2. 



14b. Umbilical view of same, x 2. Machiakou limestone, Tangshan, Chihli. (Cotype, 

 Coll. by G. B. Barbour. G. S. Ch. Cat. No. 42). 



Fig. la. Lkapira barhouri Grabau p. 33 



laa. Side view of an imperfer^t low-spired shell, x 2. 



15b. Umbilical view of same x 2. 



15c. Enlargement of part of tiie ilual whorl to show lines of growth, peripheral 



band, and marginal notch, x 4. Machiakou limestone, Tangshan, Chihli. 

 (Cotype, Survey Collection G. S. Ch. Cat. No. 43). 



Fig. 16. Ilormotovia iloqnlerl Grabau p. 34 



16a. The type specimen, enlarged four times. 



16b. Two of the whorls still farther enlarged, (x 8). 



Liangchiashan limestone Shih-Mun-Cbai region, eastern Chihli. (Holotype, Coll. 

 F. F. Mathieu G. S. Ch. Cat. No. 99). 



Fig. 17. Fuslspira sp 3. 36 



A natural section in the rock; natural size. Peilinlzc limestone, Shili-]\Iun-Chai, 

 eastern Chihli. Cull. F. F. Mathieu. (G. S. Ch. Cat. No. 9U) . (This section is 

 weathered to such an extent, that the back of the whorls is shown beyond the 

 umbilicus, giving the shell a sinistral appearance). 



Fig. 18. Fmispira sp p. 36 



A natural section in rock; natural size. Peilintze limestone, Shih-Mun-Chai, 

 eastern Chihli, Coll. F. F. Mathieu. (G. S. Cli. Cat. No. 89). 



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