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AGASSIZ AND MAYER: ACALEPHS FROM THE FIJI ISLANDS. 167 
highly colored than MeCrady’s species; the entoderm of the proboscis exhibit- 
ing no trace of the sage-green color that usually characterizes the Atlantic form. 
On this account we are in doubt as to whether the two forms are identical 
species. 
Oceania pacifica, nov. sp. 
Plate 5, Fig. 17. 
Generic Characters. Oceania, Péron and Lesueur, 1809. Eucopidæ with nu- 
merous otocysts scattered irregularly between the numerous tentacles. No 
marginal cirri. The 4 gonads are developed upon the 4 radial canals. "There 
is no peduncle to the proboscis. 
Specifice Characters. The bell is of moderate thickness, but is very flexible. 
It is hemispherical in shape, and is 6 mm. in diameter. There are 16 thin 
flexible tentacles of moderate length. The tentacle bulbs are large. There are 
two otocysts between each successive pair of tentacles, and each of these oto- 
cysts contains a single spherical otolyth. The velum is well developed. There 
are 4 straight, narrow, radial canals, in the middle regions of which the gonads 
are developed. The proboscis is short, and possesses 8 simple lips. The ento- 
derm of the tentacle bulbs, of the proboscis, and of the radial tubes in the 
region of the gonads is emerald green. 
Several specimens found at Suva and at Nukulau Island. 
Oceania ambigua, nov. sp. 
Plate 6, Figs. 18, 19. 
The bell is pyriform, and 4 mm. in diameter. The gelatinous substance is 
very thick. There are 16 short tentacles with large basal bulbs, There are 
either one or two otocysts between each successive pair of tentacles. Each 
otocyst contains a single spherical otolith, The velum is well developed, There 
are 4 straight, moderately wide radial canals. The gonads are situated upon 
these canals near to the proboscis. The proboscis is flask-shaped, and there 
are four simple lips. 
The entodermal axis of each tentacle is brown in color, and the ectoderm of 
the proboscis, gonads, and tentacles is green. 
Single specimen found at Suva, January 4, 1898. 
Clytia polynesiæ, nov. sp. 
l Plate 6, Fig. 20. 
Generic Characters. Clytia, L. Agassiz, 1862. Ewcopidæ with 16 tentacles 
alternating with 16 otocysts. Gonads upon the 4 radial canals. No peduncle 
to the proboscis. 
Specific Characters. The bell is thin and hemispherical in shape, and is 
pect pe, 
5 mm. in diameter. There are 16 short, sharply coiled, marginal tentacles, 
