168 AN ATTEMPT TO DESCRIBE THE ANIMALS THAT MADE 



Group VII. (LACERTILIANS ?) 



Gems 18. MACROPTERNA (^aKpds and nripva). 



1. M. rhynchosauroidea. 



2. M. recta. 



3. M. divaricans. 



Genus 19. XIPHOPEZA (^'<^09 and TziCa). 

 1. X. triplex. 



Group VIII. (CHELONIANS.) 



Genus 20, ANCYROPUS {SyKvpa and ttoOs). 

 1. A. heteroclitus. 



Genus 21. HELCURA (?Xk« and oipd). 

 1. H. littoralis. 



Group IX. (ANNELIDS or MOLLUSCS.) 



Genus 22. HERPYSTEZOUM (fpjrotn^s and C^v). 



1. H. Marshii. 



2. H. minutum. 



Group X. 



Genus 23. HARPAGOPUS {6p^dyr, and ttoCs). 



1. H. giganteus. 



2. H. Hudsonius. 



3. H. dubius. 



I now proceed to describe in a systematic manner the above 

 groups, genera, and species. Their affinities to existing animals 

 will be pointed out, so far as they can be ascertained. 



