Fig. 68. Transverse section through vitreous body of Tripedalia near retina.

Fig. 69. Vertical section through smaller complex eye.

Fig. 70. Wandering cells, Charybdea.

Fig. 71. Floating mass, from stomach pocket of Tripedalia.

Fig. 72. Horizontal section through larger complex eye. (See text figure, [p. 50].)

CUBOMEDUSÆ. PLATE I.

Gilman Drew, del. Heliotype Co., Boston.

CUBOMEDUSÆ. PLATE II.