Plate 32 



Page 



FiGtTRES 1-A. Hormotoma species undetermined 58 



Side views of four different specimens. 

 Uppermost Canadian, Santao formation : In tlie black 

 limestone, 3 miles southeast of Yen-tai, Liao-tung, Man- 

 churia. 



5-7. Piloceras manchuriense, new species 63 



Ventral view and two cross sections in different places 



showing location and size of endosiphuncle. 

 Uppermost Canadian, Santao formation : Black lime- 

 stone, 2 miles west of Chiao-tou, Liao-tung, Manchuria.. 

 8-10. Penhsioceras fusiforme, new species 65 



8, A natural vertical section of the siphuncle of the type 

 specimen. 



9, A cross section of the same specimen, showing location 

 and size of endosiphuncle. 



Uppermost Canadian, Santao formation : Gray arenaceous 

 limestone, north of Pen-hsi-hu, Liao-tung, Manchuria. 



10, A polished vertical section of another specimen. 

 Uppermost Canadian, Santao formation : Black lime- 

 stone, near Niu-hsin-tai, Liao-tung, Manchuria. 



139 



