138 Descriptions of New, or Little Known, Polyzoa. 



EXPLANATION OF PLATES. 



Plate I. 



Fig. 1. Microporella renipuncta. Fig. la. A single cell, showing 



spines. 

 Fig. 2. Lepralia setigera. The division on the ovicell ought to be 



more marked. 

 Fig. 3. Older specimen of same, showing marks of attachments of 



vibracula. 

 Fig. 4. Microporella stellata. 

 Fig. 5. Membraniporella distans. Fig. 5a. To show growth of 



costee. Fig. 5b. Outline of cell and ovicell. 

 Fig. 6. Lepralia magnirostris. 

 Fig. 7. Schizoporella lata. 



Plate II. 



Fig. 8. Microporella malusii, var. personata. One cell, showing 

 young ovicell. Fig Sa. To show ovicells and collars. 



Fig. 9. Mucronella serratula. 



Fig. 10. Mucronella munita. 



Fig. 11. Schizoporella insignis. 



Fig. 12. Smittia oculata. Two marginal cells. Fig. 12a. Single 

 cell, showing elevations on surface. Fig. 126. Portion more 

 deeply focussed, to show the pores, &c. 



Plate III. 



Fig. 13. Schizoporella punctigera. 



Fig. 14. Smittia reticulata, var. spathulata. Two young marginal 



cells. Fig. 14a. Older cells, showing the large lateral avicularia 



and ovicells. 

 Fig. 15. Lagenipora tuberculata. 

 Fig. 16. Mucronella Iwvis. 

 Fig. 17. Lepralia striatula. Fig. 17a. Part of a cell more highly 



magnified, to show the form of the mouth. 

 Fig. 18. Lepralia longipora. 



