dise, 
ect., 
ect. can., 
ect. m., 
ene. $., . 
end., 
end. m., 
fo. 1., 
fos., 
gl. c., 
9-9". 
Qo Bp 
inc., 
; Shp 
lac., 
Figure 
1. Stotchactis helianthus. 
- column wall. 
PLATE XIV. 
LETTERING ON THE FIGURES. 
Dy os a © 
cell-islet. Geo ily © 
ciliated streak (Flimmerstreif). MeS., 
cuticle. mg. st., 
directives. MN. Mee, 
disc. Gib 2 
ectoderm. GP lbp 
ectodermal canal. ob. m.,. 
ectodermal muscle layer. p. b. m., 
encircling sinus. per. st., 
endoderm. r. ect, 
endodermal muscle layer. rr. M., 
fibrillar layer. 1. Se, 
fossa. 8 Chy 
gland cell. sl. d., 
gonidial groove. SD ey) 
glandular streak. sph. m., 
(Driisenstreif, Nesseldriisenstreif) . Stes 
incrustations. tent., 
. intermediate streak. Z00X., = 
- lacune. Thy Hing 10h, CAO 6 
2. Homostichanthus anemone. 
3. Actinoporus elegans. 
4. Parazoanthus separatus. 
groove. x 50. 
disc. x 50. 
passes through a mesenteric chamber. 
x 76. 
[ 218 ]j 
. 
Radial section through the fossa and across the sphincter muscle. 
mesentery. 
mesenterial filament. 
mesoglea. 
marginal stoma. 
macrocnemic mesentery. 
nematocyst. 
nerve layer. 
oblique muscle. 
parieto-basilar muscle. 
perioral stoma. 
reflected ectoderm. 
retractor muscle. 
reticular streak. 
sulcar directives. 
sulcular directives. 
spermarium. 
sphincter muscle. 
stomodeum. 
tentacle. 
zooxanthelle. 
orders of mesenteries or tentacles. 
x 60. 
Transverse section through the stomodeal wall enclosing a gonidial 
Vertical section through the apex of the column and the periphery of the 
Radial section through one-half of a retracted polyp. The section 
