VAEIATION OP TENTAOULOOTSTS OF AURELIA AURITA. 251 



References. 



1. Eheenberg, C. G., 1834.— 'Abb. K. Ak. Wiss./ Berlin, pp. 199—202, 



plates. 



2. Romanes, G., 1876. — ' Journ. Linn. Soc. Zool.,' vol. xii, p. 528 ; vol. xiii, 



p. 190, plates xv, xvi. 



3. Bateson, W., 1894. — ' Materials for the Study of Variation,' pp. 426 — 



429, 6g. 128. 



DESCRIPTION OF PLATE 25, 



Illustrating Mr. Edward T. Browne's paper " On the Varia- 

 tion of the Tentaculocysts of Aurelia aurita.^' 



Fig. 1. — Epbyra witb five arms. Aboral view. X 25. 



Fig. 2. — Ephyra with six arms, three bundles of gastric filaments, and 

 four mouth lappets. Aboral view. X 35. 



Fig. 3. — Ephyra with eleven arms, six bundles of gastric filaments, and six 

 mouth lappets. Oral view, x 25. 



Fig. 4. — Ephyra with a perfect double arm, seven tentaculocysts, four 

 bundles of gastric filaments, and four mouth lappets. Aboral view. X 40. 



Fig. 5. — A portion of the umbrella of an ephyra, showing a bifurcation of 

 an arm. X 40. 



YiG. 6. — Ephyra with an outgrowth of two arms from the aboral side of 

 the umbrella, Aboral view, x 35. 



Fig. 7.— a lateral view of Fig. 6. X 25. 



