238 BULLETIN OF THE 
EXPLANATION OF THE PLATES. 
PLATE I. 
View of Nanomia cara (life size). 
ee Float. nc. Nectocalyx. 
g- Sexual bell. ns. Nectostem. 
hph. UHydrophyllium. og. Oil globule. 
ht. Hydrocyst. p. Polypite. 
hta. Tentacle of the hydrocyst. ps. Polyp-stem. 
k. Retracted tentacular knob. ta. Tentacle. 
PLATE IL 
Nanomia cara, A. Aa. 
cf. Stiff projections at the distal end inv. Involucrum of adult knob. 
of the embryonic tentacles. 
Lied le. plant tocyst of th : 
B First and second cleavage planes. aferal nematony sb Ob she emtey 
2 cl. onic knob. 
St. Terminal filament of the adult og. Oil globule. 
tentacular knob. ped. Peduncle of the tentacular knob. 
ht. Hydrocyst. pl. Protoplasmic elevation. 
hta. Tentacle of the hydrocyst. sac. Sacculus. ~ 
Fig. 1. Egg with the primitive furrow almost formed, showing superficial proto- 
plasmic envelope and protoplasmic network. 
. The same, a little younger. 
. Two-cell stage. 
. Four-cell stage. 
Four-cell stage turned in another plane. 
Beginnings of. the furrows which form the eight-cell stage. 
Hydrocyst of Nanomia found detached from the parent stem. 
Embryonic tentacular knob. 
Adult tentacular knob. 
OHA AA Pwd 
