28 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 97 



PACK 



Alokistocare laticandmn, new species 17 



Figs. 15, 16. Cranidia in calcareous shale. 



Locality 55e. 



Fig. 17. Incomplete individual. 



Fig. 18. Holotype. 



Fig. 19. Specimen lacking the libragenes. 

 Alokistocare pitnctatum, new species 17 



Fig. 20. Cranidium and portion of thorax. 



Fig. 21. Cranidium. 



Locality 556. 



Plate S 



Glossoplciira bio)i ( Walcott ) 12 



Fig. i. Cranidium and impression of pygidium. 



Fig. 2. Large pygidium. 

 Balliyiirisciis hrighamensis, new species 11 



Fig. 3. Holotype. 



Fig. 4. Impression of pygidium. 



Locality 20x. 

 Clavaspidclla anax (Walcott) 13 



Fig. 5. Cranidium. 



Fig. 6. Lectotype. 



Locality 55e. 

 Stauroholcus typical is, new species 24 



Fig. 7. Exfoliated cranidium. 



Fig. 8. Holotype cranidium (X2). 

 Glossoplciira siniilaris, new species 12 



Fig. 9. Cranidium and libragene with Hyolitlics cccrops. 



Fig. id. Pygidium. 



Locality 56 L. 



Fig. II. Holotype pygidium. 

 Clavispidella bitlius (Walcott) 13 



Fig. 12. Lectotype pygidium. 

 Chancia angusta, new species 18 



Fig. 13. Paratype. 



Fig. 14. Holotype. 

 Batliyurisctis atossa Walcott 11 



Fig. 15. Holotype. 

 Glossoplciira utahciisis Resser 12 



Fig. 16. Paratype pygidium. 



Locality 55e. 

 Glossoplciira gigantca, new species 13 



Fig. 17. Holotype (Xs). 



Locality 20x. 

 Chancia cvax Walcott 18 



Fig. 18. Plesiotype cranidium. 



Fig. 19. Holotype. 



