BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Dalmanella elegantula. 
Retzia salteri. 
Spirifer elevatus. 
Cardiola interrupta Broderip. 
Modiolopsis complanata Sowerby. 
Pterinea reticulata. 
retroflexa. 
Autodetes calyptratus. 
Holopella obsoleta. 
Tentaculites annulatus Schlotheim. 
inaequalis. 
Orthoceras bullatum. 
tracheale Sowerby. 
Beyrichia wilkensiana Jones. 
Leperditia phaseolus Hisinger. 
Calymene intermedia. 
spectabilis. 
Phacopidella downingiae (Murchison). 
Gomphodus sandelensis. 
Lophosteus superbus Pander. 
Monopleurodus ohhesaarensis Pander. 
Nostolepis striatus Pander. 
Onchus curvatus Pander. 
murchisoni Agassiz. 
tricarinatus Pander. 
Oniscolepis crenulatus Pander. 
dentatus Pander. 
magnus Pander. 
serratus Pander. 
Pachylepis costatus Pander. 
glaber Pander. 
Pterichthys harderi Pander. 
Rabdacanthus truncatus Pander. 
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- 
fieldella prunum, Spirifer elevatus, and Homeospira salteri. The gen- 
oe os 
