PLATE 1. 



Page 



Fij;. 1-9. HoMoCRiNL's scoparius. 102 



1 . An iiiJividiial showing the anal side, and the proboscis entire. Tlie extremities of the arms 



are broken off on a line witli the summit of the proboscis. 



2. An individual preserving the arms in part, with the proboscis removed. 



S. A specimen of limestone with several individuals in different slates of preservation. 



4. A group exhibiting the mode of growth. 



5. A fragment of a column somewhat larger than usual. 



5 a. Enlargement of a portion of tlie column, showing the gradual approach to the penta- 

 t agonal form. 



6. Enlargement of a portion of an arm, showing the mode of bifurcation, etc. 



7. Enlargement of a radial plate, showing the granulate surface. 



8. Enlargement of an individual, showing the structure of the body, arms and proboscis. 



9. Diagram sliowing tlie structure of the body and arms to the first bifurcation. 



