336 bulletin: museum of comparative zoology. 



9. Dalmanella elegantula. 



10. Retzia salteri. 



11. Spirifer elevatus. 



12. Cardiola interrupta Brodcrip. 



13. ^Nlodiolopsis complanata Sowerby. 



14. Pterinea reticulata. 



15. retroflexa. 



16. Autodetes calyptratus. 



17. Holopella obsoleta. 



18. Tentaculites annulatus Schlotheim. 



19. inaequalis. 



20. Orthoceras bullatum. 



21. tracheale Sowerby. 



22. Beyrichia wilkensiana Jones. 



23. Leperditia phaseolus Hisinger. 



24. Calymene intermedia. 



25. spectabilis. 



26. Phacopidella downingiae (Murchison). 



27. Gomphodus sandelensis. 



28. Lophosteus superbus Pander. 



29. Monopleiirodus ohhesaarensis Pander. 



30. Xostolepis striatus Pander. . 



31. Onchus ciirvatus Pander. 



32. murchisoni Agassiz. 



33. tricarinatus Pander. 



34. Oniscolepis crenulatus Pander. 



35. dentatus Pander. 



36. magnus Pander. 



37. serratus Pander. 



38. Pachylepis costatus Pander. 



39. glaber Pander. 



40. Pterichthys harden Pander. 



41. Rabdacanthus truncatus Pander. 



42. Tolypelepis undulatus Pander. 



It is possible that strata of the Oesel formation occur on the island 

 of Moon. Schmidt states that material which was brought to him 

 by a peasant, which was said to have been obtained on Moon from an 

 excavation for a spring, was of the same lithic aspect as the rock of 



the Kaugatoma zone of the Oesel formation, and contained Whit- 

 ficldella prunum, Spirifer elevatus, and Homcospira salteri. The gen- 



