= “a 
S - J 
rs = 7 7 : 1 
bal T 
pee an 
Ce ee u 
MEM, M. ©. Z, IX. No. 3—ACALEPHS, POLYPS, — 13 
conditions of growth. ¢a.-ta3, Tentacles. -¢b. ta. Chymiferous tube, which lies i the 
: nere as the cluster of tentacles. 
b lusa just escaped from its hydroid connection with a single well developed tentacle. can. ere. Circular 
canal. man. Manubrium. +. td. Radial tube. fa. Tentacle. ta’. Cluster of small bodies at the ten- 
tacular base. 4. ta. Tentacular tube. vel. Velum. ¢ A symmetrical development of the umbrella 
near the origin of the tentacle. - 
. The same, a day after freedom from hydroid (seen from oval side). can. ere. Cireular canal. man. Manu- 
brium. pig. Pigment ? ta. Tentacle. ta’. Cluster of bodies at the base of the tentacle. ¢b. ta. Ten- 
tacular tube. vel. Velum. 
