PLATE XXVI. 
LETTERING ON THE FIGURES. 
ar. = . . - « acrorhagia. | Onths o 6 9 o @ulGbrie 
ad. tent. . . . adhesive tentacles. @s. . . . . . esophagus (stomatodeum). 
bw. . . . . body-wall. @s.gr. . . . . esophageal groove (gonidial 
DD. .. . . . directive mesentery. groove). 
dend. tent. . . . dendritic tentacles. Oh oo a o 6 ping 
Gt 6 5 3 0 3 dneskyaen. we 3 9 9 oo [edhe 
Cds ee) =) ss) endoderm: | periph. tent. . . peripheral tentacles. 
end. mse. . . . muscular layer of endoderm. sph... . . . sphincter muscle. 
g. . . . . . globular tentacles. | DB 8 6 5 o oo UsMy 
m. . . . . ~ mesoglea. ; | tent.. . . . . tentacle. 
ms. . . . « « mesentery. | Uh  o.0 0 & 9 WGN 
Mm. . =. . « mnematocyats. 200k. . . . . zooxanthelle. 
nl... . . ~ nervous layer of ectoderm. 
Actinia citrina (H. and 8.), (p. 416). 
Figure. 
1. Vertical section of half a polyp. 
2. Section of the sphincter muscle. 
8. Dissection of a perfect mesentery. 
4, Transverse section of a tentacle. 
5 
. Vertical section of a part of the body-wall. 
Anemonia Ramsayi (H. and 8.), (p. 420). 
6. Vertical section through upper portion of column and of a tentacle, x 500. 
7. Transverse section through portion of a mesentery, x 100. 
Anemonia Kwoiam (H. and 8.), (p. 422). 
8 
9, 10. Two sections of the sphincter muscle, x 100. 
Vertical section of upper part of body-wall, x 15 
11. Vertical section of a part of the body-wall, x 100. 
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