Fig. 
Fic. 
Fic. 
Fig. 
4 
PeayAL Ea exe 
MEDUSINA QUADRATA (p. 93). 
. (After Haeckel). 
m. Mouth area. 
r. Radial pouch? 
i. Interradial area. 
c. Ring canal. 
u. Gelatinous disk. 
MEDUSINA BICINCTA (p. 94). 
. (After Haeckel). 
m. Oral field. 
r. Radial pouch? 
i. Interradial area. 
ec. Ring canal? 
u. Gelatinous disk. 
EULITHOTA FASCICULATA (p. 73). 
. (After a photograph, Haeckel.) The 16 marginal lobes (/) of the umbrella are thrown 
inward. The8 incisions of the disk rim in which the eyes (0) reside, and from which 
the fascicles of tentacles arise (t), are distinctly prominent on the periphery. The form 
of the mouth (m) and the 4 oral arms (b) which surround it, is not clearly discernible. 
On the other hand, the dextral half of the radial canal (7) and the crescentic sexual gland 
(g) are very sharply defined. 
. Restoration of this species by Haeckel, after the impression represented by photograph in 
fig. 3. The 16 lobes of the umbrella margin, which in the impression are withdrawn 
inward, are here spread out. 
m. Mouth. 
b. Oral arm. 
g. Genital gland. 
r. Radial canal. 
l. Marginal lobe. 
o. Eye. 
t. Tentacle fascicle. 
194 
