486 MR, E. T, BROWNE ON [Mar. 17, 
Between every bulb and tentacle six to ten cirri, very small and 
colourless. Scattered on the ex-umbrella, just above the margin, 
are numerous cirri, such as Forbes described. 
Eight adradial marginal vesicles, with about twelve otoliths in 
each. The gonads are upon the four radial canals, extending from 
the stomach nearly to the margin of the umbrella. The basal 
bulbs of the tentacles and the large bulbs without tentacles are 
alike in colour; a yellow centre nearly surrounded by a purplish 
band. 
T sent to Mr. E. J. Allen, at Plymouth, a description of these 
meduse taken at Valencia, and asked him to collect specimens for 
me. He kindly sent me seven specimens, alive, and some more in 
formaline, on June 28th. They were similar to the specimens 
taken at Valencia. The marginal vesicles contained a few more 
otoliths, arranged in some specimens in two rows. The stomach, 
mouth, and gonads purplish in colour. The tentacle-bulbs were 
coloured exactly like those of the Valencia specimens. There were 
cirri upon the ex-umbrella near the margin, and also between the 
tentacles. Diameter of the umbrella 10 to 15 mm. 
During a visit to Plymouth, in 1893, I saw some specimens 
of a medusa, labelled Laodice cruciata, taken by Mr. Garstang. 
Some of these specimens are now in my collection. They show 
the cirri on the ex-umbrella near the margin, and agree in other 
details with the description given by Forbes. The marginal 
vesicles are not to be seen, as the specimens are in alcohol. I 
have proved over and over again that the marginal vesicles 
often shrivel up in spirit-specimens. Therefore, the absence of 
vesicles in spirit-specimens does not prove their absence in living 
specimens. 
During a visit to Plymouth in September, 1895, I found in the 
tow-net a very young medusa, which I believe, from the coloration 
of the tentacle-bulbs, may possibly be the earliest free-swimming 
stage of Huchilota pilosella. (Pl. XVI. figs. 7 & 7a.) 
Umbrella bell-shaped, about 1 mm. in length and width. Eight 
marginal vesicles, with a single otolith in seven of them and two 
otoliths in the other one (the number of otoliths increases with 
age). Two opposite perradial tentacles, very short, and two 
opposite perradial bulbs, without tentacles. The basal bulbs of 
the tentacles are alike in coloration, a yellowish centre with a 
purplish band; the bulbs without tentacles colourless. 
The mouth has four lips, and the stomach extends into the 
substance of the umbrella, terminating in an apical stalk, which 
shows that the medusa has not long been liberated either from 
another medusa or from a hydroid colony, in this case probably 
from the latter. I placed this medusa in an aquarium ; nine days 
later the apical stalk had disappeared, but the tentacles remained 
in same condition. 
I think there should be no difficulty in identifying Huchilota 
pilosella, The cirri upon the ex-umbrella near the margin and 
the eight marginal vesicles distinguish it from any other species, 
