16 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
lections of Acalephs made by the “ Albatross” in 1891,1 and those we 
have made in Fiji, show a remarkable similarity between the West In- 
dian Acalephian genera and those of this part of the Pacific. We found 
in Fiji Linerges, Polyclonia, Aurelia, Halopsis, Tiaropsis, Gonionemus, 
Liriope, Bougainvillia, Eutima, Oceania, Aglaura, Eucharis, Idya, Agalma, 
two genera of Diphyes and Physalia, all genera occurring in the Gulf of 
Mexico. This will be brought out in greater detail by Mr. Mayer, who 
has in preparation a paper on the Acalephs of our Southern States, . 
which will appear somewhat later than his report on the Acalephs col- 
lected at Fiji. This similarity will undoubtedly be found to extend to 
other groups of pelagic animals. 
We were fortuuate enough to be at Levuka at the time of the appear- 
ance of the “ Bololo.” On the morning of the 17th of November we 
left the ship at three o’clock, bound fora spit named Bololo Point, 
about three miles south of Levuka. We had scarcely reached the spot 
when our guide put his hand in the water and pulled out one of the 
worms. Ina few minutes the water was full of them, canoes put out from 
_ the shore, men, women, and children were wading on the reef exposed 
by the tide, with nets, and all kinds of utensils to catch Bololo. As the 
light increased, the Bololo increased, and at one time they were so plen- 
tiful that the water surrounding our boat must have been filled with them 
so thickly as to resemble vermicelli soup. A bucket put overboard 
seemed to contain nothing:else. We made an excellent collection, and 
preserved a large number by different methods. We found, as we had 
expected, that their sudden appearance was connected with spawning ; 
there were males and females swimming about full of eggs and of sperm. 
When in captivity they soon discharged these, the water became milky, 
and masses of dark eggs were left on the bottom of the dish. With the 
escape of the eggs came the collapse of the worm, and nothing was left 
but an empty skin scarcely visible. Thus the Bololo seems suddenly to 
disappear. The males are light yellowish brown, the females dark green. 
Their activity is something wonderful, and the bursting of the animal 
when it discharges its eggs is quite a peculiar phenomenon. 
Dr. Woodworth made it an object to collect all the material that 
could be got together in regard to the Bololo, and he will prepare a 
paper on these interesting Annelids. 
1 Reports on the Dredging Operations off the Coast of Central America, Mexico, 
off the Galapagos, and in the Gulf of California, in Charge of Alexander Agassiz, 
by the U.S. Fish Commission Steamer “ Albatross,” in 1891, in command of Lieut. 
Com. Z. L. Tanner, U. 8S. N.—XXI. Die Acalephen, von Otto Maas, Mem. Mus, 
Comp. Zool., Vol. XXIII. No. 1, 1897. 
