[17] MEDUSZ FROM THE GULF STREAM. 529 
Family SOLMARIDE, Heckel. 
Sotmaris incisa, Fewkes. 




Catalogue | qy.4; 4th lati 5 oi 
aathor, Station. | North latitude. | West longitude. 
° ! u fo) ! " 
11667 2429 42 55 30 50 51 00 

Several large specimens of this giant Narcomedusa occur in the col- 
lections; in one of these the form of the bell is unmutilated and the subuin- 
bral elevations and depressions well shown. The velarium is undivided 
into marginal lappets, showing that my conjecture of the non-existence 
of separate lappets in the jelly-fish is borne out by a study of fresh ma- 
terial. There are in the largest specimen (entire) thirty subumbral de- 
pressions. There are thirty tentacles and the same number of peroniz. 
No festoon canal. 
Many of the “ marginal lappets” in other specimens are united, indi- 
cating, as already suggested, the existence of connections along the 
peroniz, which are split in most of the specimens studied. The vela- 
rium is formed by a union of all the marginal lappets, and recalls that 
of other Solmaridee. 
The feature upon which the species is built is the radial grooves on 
the under side of the umbrella, as already elsewhere described. These 
“‘radial-furchen” resemble structures in Cunina campanulata, where, 
according to Heckel, they are on the “untere magenwand.” In 8. incisa 
these furrows are on the upper wall of the stomach or the under wall 
of the disk. 
A new examination of S. incisa to determine, if possible, whether L 
might not be mistaken in my identification, and whether my specimen 
does not belong to C. campanulata has convinced me that my specimens 
have no festoon canals, and differ in many other ways from Cunina. 
S. incisa is more disk-like than campanulate, is larger than Campanulata 
and has more tentacles. Instead of gastral pouches in the pernemal 
radii there are prominent umbral elevations. The furrows are interne- 
mal. In one specimen the edges of the gastral furrows were lined with 
a white structure which may be the remnants of the attachment of the 
ovaries. The species differs so greatly from other Solmares that it may 
probably be found to be a new genus. 
This animal is a giant among the Narcomeduse. The only génus of 
the group which approaches it in size is Polyxenia, of which P. cyanos- 
tylis, Esch., according to Eschscholtz is 80™ in diameter. According 
to Heckel a species found by him was one-third smaller than that of 
S. Mis. 90-——34 
