440 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



DESCRIPTION OF PLATE 59 



PAGE 



Asaphiscus iddingsi Walcott 386 



Fig. I. (X 2.) Dorsal shield flattened in argillaceous shale. U. S. 

 National Museum, Catalogue No. 57586. 

 10. (X2.) Cranidium, from limestone associated with the shale 

 mentioned under fig. i. U. S. National Museum, Catalogue 

 No. 58269. (Locality 35r.) 

 i&. (X3-) A smaller cranidium, associated with the specimen 

 represented by fig. 10. U. S. National Museum, Catalogue 

 No. 58270. 



The specimens represented by figs, i, la-b, are from localities 

 35f and 36e: Middle Cambrian; Fu-ch6u series; shale interbedded 

 in limestone, Liau-tung, Manchuria. 



These figures were published, pi. 23, figs, i, la-b (Research in 

 China, Vol. 3, Carnegie Inst, of Washington, Pub. No. 54, Cambrian 

 Faunas of China). 



Asaphiscus ( F) capella Walcott 385 



Fig. 2. (X2.) Restoration based on a nearly entire specimen of the 



dorsal shield and the specimens represented by figs. 2a, ib, 



2c. U. S. National Museum, Catalogue No. 62761. 

 20. (X 2.) Cranidium outlining the slightly concave frontal border. 



U. S. National Museum, Catalogue No. 62762. 

 2b. (Natural size.) Matrix of a crushed and broken dorsal shield, 



showing wavy doublure of cranidium. U. S. National 



Museum, Catalogue No. 62763. 

 2c. (Natural size.) Impressions of pygidium in fine-grained shale. 



U. S. National Museum, Catalogue No. 62764. 



The specimens represented by figs. 2, 2a-c are from locality 54Z, 

 Middle Cambrian : Wolsey shale ; Half Moon Pass, Big Snowy 

 Mountains, Montana. 



