AGASSIZ AND MAYER: ACALEPHS FROM THE FIJI ISLANDS. 181 
tentacles arise from the bases of the tasterns and feeding polyps. Each tentacle 
gives off a number of lateral branches which terminate in a coiled nematocyst 
battery, an ampulla, and two paired horns. Both male and female gonostyles 
are found upon the same siphosome, and they arise from the side of the sipho- 
some between the tasterns and feeding polyps. The male gonostyles are long 
and slender, while the female are short and stout, and contain each one of them 
a considerable number of ove. Both male and female gonostyles are borne 
upon long, slender filaments that are highly contractile. The color of the ento- 
derm of the hydrosoma, swimming bells, feeding polyps, and tasterns is rose- 
red or pink. The nematocyst batteries upon the terminal portion of the 
tentacles are dark red. The gonads and braets are colorless. 
