434 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 53 



Acrothelc — Continued. page 



coriacea, compared with Acrothelc bcrgeroni 84 



compared with Acrothelc levisensis 85 



Acrothelc yorkensis 89 



Acrothele (Rcdlichclla) granulaia 89 



levisensis, new species 85, pi. 8, fig. 13 



compared with Acrothele coriacea 85 



matthcim, compared with Acrothele yorkensis 89 



pandcri, stratigraphic position and association 202 • 



prima costata, compared with Acrothele artemis 82 



quadrilineata, compared with Acrothele bcrgeroni 84 



spurri, new species 86, pi. 8, fig. 14 



associated fossils listed 86, 87 



compared with Acrothelc subsidua 86 



Acrothele subsidua hera 87 



Acrothele turneri 88 



Acrothele woodzuorthi 86 



stratigraphic position and association 184, 189 



subsidua, compared with Acrothele spurri 86 



compared with Acrothele subsidua hera. 87 



Acrothele turneri 88 



descendant of Acrothele subsidua hera 87 



stratigraphic position and association 180, l8l, 183, 184, 



195, 197, 198 



Walcott, in synonymy 86 



subsidua hera, new variety 87, pi. 8, fig. 15 



associated fossils listed 87 



compared with Acrothele spurri 87 



Acrothele subsidua 87 



progenitor of Acrothele subsidua 87 



stratigraphic position and association 184 



subsidua Icevis, stratigraphic position and association 180 



subsidua var., stratigraphic position and association 198 



turneri, new species 87, pi. 9, fig. 12 



compared with Acrothele borgholmensis 88 



Acrothele spurri 88 



Acrothele subsidua 88 



cf. turneri, stratigraphic position and association 196 



zvoodworthi, new species 88, pi. 9, fig. 11 



compared with Acrothelc spurri 86 



Micromitra 88 



yorkensis, new species 88, pi. 9, fig. 10 



associated fauna 89 



compared with Acrothele coriacea 89 



Acrothele niatthezui 89 



Acrothele {Rcdlichclla) granulata 89 



nature of associated fauna 89 



