104 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 57 



DESCRIPTION OF PLATE 15 



PAGE 



Agraulos sorge Walcott 82 



Fig. I. Dorsal view of the type specimen, a cranidium. X 4- U. S. 

 National Museum, Catalogue No. 57575. 



Lisania bura (Walcott) 82 



Fig. 2. Top view and side outline of cranidium (X 4), the type speci- 

 men of the species and genus. U. S. National Museum, 

 Catalogue No. 57605. 



Chuangia batia ( Walcott) 84 



Fig. 3. The type of the species and genus, a specimen in which the 

 test has been exfoliated. Natural size. U. S. National 

 Museum, Catalogue No. 57606. 

 3a. Pygidium partially exfoliated. Natural size. U. S. National 

 Museum, Catalogue No. 57576. 



Chuangia fragmcnta Walcott 84 



Fig. 4. Dorsal view of a fragment of the cranidium. X i-5. U- S. 

 National Museum, Catalogue No. 57607. 



Chuangia nais Walcott 84 



Fig. 5. Dorsal view of a fragmentary specimen of the cranidium. 

 Natural size. U. S. National Museum, Catalogue No. 57608. 



Chuangia nitida Walcott 85 



Fig. 6. Dorsal view of a nearly entire cranidium. X 3- U- S. 

 National Museum, Catalogue No. 57609. 



Levisia agenor (Walcott) 86 



Fig. 7. Top view and side outline of cranidium (X4), the type 

 specimen of species and genus. U. S. National Museum, 

 Catalogue No. 57610. 



Anomocare ephori Walcott 90 



Fig. 8. Dorsal view of the cranidium. X 2. U. S. National Museum, 

 Catalogue No. 57577. 

 8a. Associated pygidium. X 2. U. S. National Museum, Cata- 

 logue No. 57578. 



Anomocare lisani Walcott 9° 



Fig. 9. Portions of a cranidium preserving the convexity. X 2. U. 

 S. National Museum, Catalogue No. 57579. 

 9a. A cranidium flattened in the shale. Natural size. U. S. 



National Museum, Catalogue No. 57580. 

 9b. Associated pygidium. X 2. U. S. National Museum, Cata- 

 logue No. 57581. 



