LIST OF ABBREVIATIONS 
concerning all the figures from plates I — VII. 
a. = symbiotic Algae. 
act. = actinopharynx. 
act. k. = actinopharyngeal glandcells. 
a. ec. = axis-ectoderm. 
a. en. — axis-entoderm. 
a. me. = axis-mesogloea. 
c. k. = central lumen of the axis. 
d. = spine. 
ec. = ectoderm. 
en. = entoderm. 
g. = gastral cavity. 
gr. nem. = large type of nematocysts. 
h. k. c. = hyaline glandcells. 
i. = axis-intima. 
Lr\ = interseptal room between 5/, and j,. 
I-r 2 . = interseptal room between s, and Sp„. 
I-r 3 . = interseptal room between and 
/. r 4 . = interseptal room between Sp x and s 2 . 
/. l 5 . = interseptal room between s 2 and Sp 3 . 
I-r*. = interseptal room between Sp 3 and Sp 3 . 
i. r 1 . = interseptal room between s x and ^ 3 . 
i- r 2 . — interseptal room between Sp 2 and .y,. 
I. s. = interzooidal septum. 
k. c. = deeply staining glandcells. 
L. = lateral tentacle. 
l. sp. = longitudinal musclefibres. 
/. w. = bodywall. 
m. c. — oral cone. 
me. = mesogloea. 
me. f. — mesogloeal fibrillae. 
me. v. — mesogloeal lamellae. 
m. f. = mesenterial filaments. 
n. — nucleus. 
nem. b. = nematocyst-battery. 
n. i. — nucleolus. 
o. = ovum. 
p. = pigment. 
par. = parasite. 
5 . = sagittal tentacle. 
s. — spermatozoa. 
•b = anterior pair of secondary mesenteries. 
s 2 ~ posterior pair of secondary mesenteries. 
s 3 = sixth pair of (secondary) mesenteries. 
s. k. = axis-wall. 
Sp x . — primary transversal mesenteries. 
Sp. r — anterior primary sagittal mesenteries. 
Sp. y = posterior primary sagittal mesenteries. 
sp. 1. = layer of musclefibres. 
s. s. = tails of spermatozoa. 
t. = testis. 
tr. sp. = transversal musclefibres. 
v. 1. = connecting septum of the axis. 
z. 1. = nervous layer. 
