Plate 28 



Page 



Figures 1-3, 12, 13. Lophosplra aojii, new species 52 



1, 2, Two side views of the same specimeu. 



3, A side view of anotlier imperfect specimen 



(X2). 

 12, 13, Different side views of a perfect shell 



(X2). 

 Lower Ordovician, Kangyao formation : In the 

 black weathering limestone, 3 miles south of 

 Yen-tai, Liao-tung, Manchuria. 



4, 5. Lophosplra (/rabaui, new species 52 



Side view of type specimen and enlarged (X 4) 



view showing fine surface markings. 

 Formation and locality same as Figures 1 and 2. 



6-11. Lophospira manchuriensls, new species, X 2 54 



6, 7, Side views of a fairly good specimen. 



8, 9, Side views of another cotype. 



10, 11, Side views of a third cotype. 



Formation and locality same as Figures 1 and 2. 



14 17. LopJiospira kangyaoensis, new species 53 



14, 15, Side views of a cotype ( X 4). 

 16, 17, Two side views of another somewhat im- 

 perfect specimen ( X 2 ) . 

 Formation and locality same as Figures 1 and 2. 



135 



