MUSEUM OF COMPARATIVE ZOOLOGY. 87 
These invariably have eight otocysts instead of four, even before the ovaries 
were developed, and while there are but two tentacles which are ovposite 
each other. 
In connection with Oceaniopsis it may be well to mention a new sp2cies of 
Eucheilota, a young stage (Fig. 13) of which was taken in surface ecllecting 
at Newport last summer. This jelly-fish resembles closely the young of LZ. ven- 
tricularis McCr., but, unlike it, has only four otocysts. There are :wo ten- 
tacles, which arise diametrically opposite each other on the bell margin, at the 
junction of radial and circular chymiferous tubes. Near the base of each ten- 
tacular bulb there hang two short filaments, as in Hucheilota. 
The otocysts are situated on the bell rim, half-way between the peripheral end 
of the radial tubes. Near each otocyst there hangs a short filament, not unlike 
those situated near the tentacular bulbs. 
The single specimen taken was undoubtedly larval, and no indication of the 
sexual organs wasseen, If the number of otocysts does not increase as the larva 
grows older, this Medusa is probably the young of a new genus ; otherwise, it 
may be the immature form of some well-known Medusa like Eucheilota. Pro- 
visionally, therefore, I have referred it to Eucheilota, and designate it as the 
young of E£, quadralis sp. nov. 
Cladonema sp. 
The genus Cladonema has up to the present time never been taken from 
American waters. A species of this genus, found by Dr. C. O. Whitman near 
Key West City, in 1883, is in certain particulars different from the C. radia- 
twm Du Jardin, and may be found, on a more extended study, to be a new 
species, 
Cladonema was found with Cassiopea on the shoals near Fleming’s Key.* 
At the time of capture it was apparently at or very near the sea bottom, and 
was brought up in a dip-net with sand from the shoal. 
The bell is almost spherical, and is destitute of an apical projection. The 
outer surface is smooth, and the bell walls thin. No indication could be 
seen, either in sketches of the animal when alive or in the preserved specimen, 
of a cavity at the base of the proboscis called a “brood sac” in the related 
genus Dendronema. 
There are nine chymiferous tubes in the bell walls. Of these tubes, six only 
originate from the base of the proboscis. Three chymiferous tubes pass directly 
without sudivision from the proboscis to the bell margin, and three bifurcate 
a-short distance from their origin. The three bifurcating tubes alternate with 
those which do not divide. 
There are nine large tentacles hanging from the bell margin, each at an ex- 
tremity of a chymiferous vessel, At the base of each there is an “eye-spot” of 
black color. Two kinds of lateral branches arise from the tentacles. The first 
* A mangrove key, a short distance north of Key West, Florida. 
