564 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx. 



The following- i.s a list of the genera and species described by H. 

 Monke: 



1. Ag)wstns koe?iferi. 5. Drepanura j^femesnili. 



2. Liostracina krausei. 6. Drepanura hettelein. 



3. Teinistion lansl. 7. Stephanoccvre richthofenL 



4. Teinution sodenl. 8. Stephanocare sp. 



Of the above three genera and species described by me in 1905 are 

 S3monyms: 



Liostracina krausei Monke = Ptyc/wparia ceus Walcott. 

 Teinistion lansi Mouke,^^ Dorypygella typicalis Walcott. 

 Stephanocare richthofeni M.onke= Damesella chione Walcott. 

 The following are new forms: 



Drepanura hetteleri Monke. 

 Teinistion sodeni ]\Ionke. 



I do not find that Aipiostus I'oerfei'i Monke differs specificall}' from 

 Agnostus chinensix Dames. 



Teinistion lansi Monke is similar in man}' respects to Shantungia 

 spinifera Walcott, but differs in the i)resence of an incurved frontal 

 margin, and the absence of the long frontal spine. 



The d,etailed sections worked and the succession of the contained 

 faunas show that the horizon of the fauna described b\' Monke is the 

 upper part of the Middle Cambrian, and not Upper Cambrian as 

 determined by Monke. The detailed sections and lists of faunas will 

 be given in the paleontological report. 



ASSOCIATION OF GENERA AND SPECIES. 



In order that the student may be saved the labor of making lists of 

 the species from the various localities, the following lists are inserted. 

 The species given in each list do not all occur in the same layer of 

 rock, but the}' are from the same band of layerst The number of 

 layers and their thickness will l)c given in Mr. Blackwolder's report 

 on the detailed sections. The stratigraphic range is limited so as to 

 avoid the commingling of faunas from distinct faunal zones. 



The line between the ^liddle and Upper Cambrian faunas is placed 

 at the top of the Ku-shan shale. The fauna of the Ku-shan shale 

 includes species of DameseUa^ Doi'ypyge^ and genera that are typical- 

 of the ISIiddle Cambrian fauna, while the fauna of the Ch'an-mi-tien 

 limestone, above the Ku-shan shale, is more nearly related to that of 

 the Upper Cambrian of North America and northwestern Europe. 



The line of the Lower Cambrian is placed at the top of the Man-t'o 

 formation, as the predominant trilobite, Redlichia^ is more closel}' 



