14 



BULLETIN 164, UNITED STATES NATIONAL MUSEUM 



FROM THK UPPE» FOSSIL HORIZON 



Camarocladia arboresoens, new species. 

 Caanarooladia fucoides, new species. 



Camarocladia plana, new species. 

 Maclurites higsbyi (Hall), 



FROM THE LOWER FOSSIL HORIZON 



Stronmiocerium reffulatum, new 

 species. 



Maclurites higsbyi (Hall). 



Cycloccras aokii, new species. 



Sactoccras kobayashii, new species. 



Sactocera-s irmii, new species. 



Arnmnoccras elegans, new species. 



Armenoceras asiatioum, new species. 



Armenoceras resseri, new species. 



Armenoceras hatai, new species. 



Armenoceras harioi (Kobayashi). 



Annenoccras mmich/urense (Koba- 

 yashi). 



I also collected the following Ssuyen fossils on Fu-chin-kou ridge, 

 2.5 miles southwest of Miyanohara Station on the Antung-Mukden 

 line: 



Playfairia cf. deltoidea (Conrad). 

 Cycloceras (?) tnanchuriense, new 



species. 

 Armenoceras nanum takayamai, new 



variety. 

 Armenoceras penJisiense, new species. 

 Armenoceras richthofeni (Freeh). 

 Armenoceras suzukii, new species. 

 Ormoceras chinense, new species. 

 Isoteloides sp. undetermined. 



Sactoceras liaotufigense, new species. 

 Armenoceras asiaticum, new species. 

 Armenoceras murakamii (Kobayashi) 

 Armenoceras tani (Grabau). 



Stromatooerium r e g ulatum, new 



species. 

 Maclurites nitida (Ulrich and Sco- 



field)? 

 Maclurites higsbyi (Hall). 



Both the upper and lower fossil horizons of the Ssuyen occur 

 around the Niu-hsin-tai coal basin, where I have collected the fol- 

 lowing species : 



FROM THE UPPER FOSSIL HORIZON 



Maclurites higsbyi (Hall). 

 Cycloceras (?) peitoutsense Grabau. 



Armenoceras elongatum, new species. 

 Ormoceras orientale, new species. 



FROM THE LOWER FOSSIL jHORIZON 



Strom^tocerium, regulatum, new 



species. 

 Machirites nitida (Ulrich and Sco- 



fleld)? 

 Maclurites bigshyi (Hall). 

 Cycloceras (?) peitoutzense Grahau. 

 Sactoceras niulisinense, new species. 

 Armenoceras elongatum, new species. 



Armenoceras manchurense ( K o b a - 



yashi). 

 Armenoceras m^gnitubulatum, new 



species. 

 Armenoceras nanum (Grabau). 

 Armenoceras sondai, new species. 

 Ormoceras kimurai, new species. 

 Ormoceras tail, new species. 



Furthermore, a number of good fossil localities of this formation 

 are found at several places in the Aigawa, Chiao-tou, Tao-yuan-kou, 

 and Hsiao-shih areas. 



Correlation. — As will be seen by reference to the foregoing fossil 

 list, the Ssuyen formation contains a typical North American Black 



