MUSEUM OF COMPARATIVE ZOOLOGY. 89 
EXPLANATION OF THE PLATE. 
a 
re ES WS Ao Sa 8 
Sais, 
3 
Axis. 
. Float. 
Contents of polypite (Alga ”). 
“‘ Peroni.” 
Extension of bell cavity into the “ velarium.” 
Projection of the bell margin near an otocyst. 
Mouth (opening into a gastric cavity). 
Projection into the bell cavity from which the stomach hangs. 
Hood. 
Cluster of nematocysts. 
Annulations formed by rows of nematocysts on the tentacles. 
Lips. 
. Labial papille. 
Mouth. 
. Marginal lappets. 
ms. Muscular bands. 
oc. Otocyst. 
p. Polypite. 
ph. “Phacellen.” Sexual filaments. 
s. Sexual organs. 
t. Tentacles. 
tt. Tentacular appendages. 
v. Velum. 
Fig. 1. Rhizophysa Eysenhardtii Geg. 
“1. Portion of a tentacle of R. Eysenhardtii. 
« 2. Young of an unknown Medusa. 
«« 3. The same from below. 
“4, Larva of Tamoya punctata, sp. nov. 
«5. Older larva of the same. 
“ 6. View of 7. punctata from below 
“7. Larva of an unknown Tubularian. 
«7. The same from below. 
“ 8. Oceaniopsis Bermudensis gen. et sp. nov. 
«9. View of half of the same from below. 
“10. The same, from larva somewhat older. 
