yh. Cross section at the apical end of endoconch of the same specimen, 

 showing the excentric endosiphuncle and the form of endoconch. 



Loc: — He-chiao, Chung-yang-hsien, SE. Hupeh. (N.R.I. Cat. No. 2) 



Fig. 8. V aginoceras helemnitiforme Holm. Nat. size p. 36 



Longitudinal section, showing the tapering of shell, the ectoseptal 

 distances and the position and the size of the endoconch. 



Loc: — Near Ta-fang village, Yang-sin-hsien, E. Hupeh. (G.S.C. Cat. 

 No. 2835) 



Fig. 9. V aginoceras neichianense Yii. Nat. size p. 39 



9a. Longitudinal section, showing the ectoseptal distances, the rate of 

 tapering and the endoconch with the stereoplasmic filling. 



9b. Cross section. 



Loc: — Near Sin-tan, Tze-kuei-hsien, W. Hupeh. (G.S.C. Cat. No. 2836) 



Fig. 10. V aginoceras reedi Yii. Nat. size p. 40 



loa. Portion of a weathered individual, showing the ectoconch with a 

 part of endoconch exposed. 



lob. Longitudinal section of same, showing the closely set ectosepta and 

 the entirely empty endoconch. 



IOC. End view of same, showing the form and position of endoconch. 



Loc: — Near Sin-tan, Tze-kuei-hsien, W. Hupeh. (G.S.C. Cat. No. 2838) 



Fig. II. V aginoceras reedi Yii. Nat. size p. 40 



iia. Longitudinal section of a portion of the shell, showing the size of 

 endoconch and the ectoseptal distances. 



lib. Cross section. 



Loc: — Near Sin-tan, Tze-kuei-hsien, W. Hupeh. (G.S.C. Cat. No. 2839) 



(II) 75 



