NO. I CAMBRIAN FAUNAS OF EASTERN ASIA 9 



I do not find that Agnostus kocrferi ^ilonke differs materially from 

 Agnostiis chinensis Dames, except in the unattached pygidium. 



Teinistion lansi Monke is similar in many respects to Shantimgia 

 spinifera Walcott, but differs in the presence of an incurved frontal 

 margin, and the absence of the long frontal spine. 



The detailed sections and the succession of the contained faunas 

 prove that the horizon of the fauna is in the upper part of the 

 ]\Iiddle Cambrian, and not Upper Cambrian, as determined by 

 Monke. 



In 1904 Dr. Th. Lorenz ^ described some problematical fossils? 

 as Algse under the new family Ascosomacese of the Siphoneae. The 

 genus Ascosoma was proposed to include one species, Ascosoma 

 phaneroporata, and a second species was placed under a new genus 

 as MitscherUchia chinensis. Doctor Lorenz stated that he would 

 soon publish a full description, with illustrations, of the new family, 

 genera, and species, but on further study he decided that the fauna 

 was neither algas nor sponges." 



In 1905 some of the results of the Carnegie Institution of Wash- 

 ington Expedition to China were published by the writer, and a sec- 

 ond paper appeared in 1906.'' These two papers included descrip- 

 tions and certain introductory notes on the Cambrian fossils col- 

 lected by Messrs. Bailey Willis and Eliot Blackwelder that are in- 

 cluded in this memoir. Subsequently lists of the species appeared 

 in the report on the stratigraphic geology by ^Messrs. ^^'illis and 

 Blackwelder.^ 



Dr. Henry Woodward reviewed, in 1905, the work of Dr. H. 

 ]\Ionke ° and discussed some of the species occurring in a collection 

 of fossils obtained from " West Shan-tung, and south of Tsing- 

 tshou-fu, 36° 40' N. lat., 118° 40' E. long." A slab of the fossils 

 from near Yen-tsy-yai is illustrated. 



^ Centralblatt fur Min., Geol. und Pal., 1904, No. 7, pp. 193-194: Ascosomaceas, 

 eine neue Familie der Siphoneen aus dem Cambrium von Schantung. 



^ Zeitschr. deutsch. geol. Gesellsch., Vol. 58, 1905 : Beitrage zur Geologic 

 und Pal^eo^tologie von Ostasien unter besonderer Beriicksichtigung der 

 Provinz Schantung in China, I. Teil, pp. 12-13. 



' Proc. U. S. National Museum, Vol. 29, 1905, pp. 1-106; Idem, Vol. 30, 1906, 

 pp. 563-595- 



^ Research in China, Pt. I, pp. 19-43, 136-147, 272. 



' On a collection of trilobites from the Upper Cambrian of Shantung, North 

 China. Geological Magazine, London, new ser., Dec. V, Vol. 2, 1905, pp 

 211-215,251-255, plate 13. 



