Miscellaneous. 
389 
footbridge of a station at an equal distance from Cette and 
Agde. The Medusa always inhabits the lower surface of the 
islets of floating Algae. On removing these it is seen clinging 
like a flake of jelly, shining like crystal. On reimmersing 
these Algae in the water the frightened Medusae separate by 
swimming in all directions, which is a very pretty sight. 
The season of their occurrence is limited to June and July. 
We did not find them in September and October, any more 
than in the spring. 
Relations with Allied Species. In the sea which approaches 
the canal of the salt-works, and also in the great canal of the 
lagoons, we find a Medusa of the same genus ( Cosmetira 
punctata). This is always at least as large as a crown piece. 
It only occurs in pure and fresh sea-water. It has exactly 
the same form and proportions and the same organs as the 
species from the salt-works, but all on a larger scale. 
The colour is very different; all the tints are lighter. The 
umbrella, the velum, and the tentacles are colourless. The 
gastrovascular canals and the trunk are scarcely tinged with 
reddish. The genital fringes are of a delicate rose-colour, as 
also the angles of the trunk. 
Thus, reduce the whole animal to the dwarf size of a half¬ 
franc piece, colour the canals and the stomach green, change 
the rose-colour into violet, blacken the tentacles, and you have 
by these modifications transformed the Cosmetira of the sea 
into that of the salt marshes. It is these peculiarities which 
make us believe that our species may perhaps be derived from 
an emigration, with slow transformation, of Cosmetira punc¬ 
tata. This is why we present this new-comer as being at 
present perfectly separated from its starting-point, from which 
it is distinguished by its size, its colours, and, especially, its 
domicile. This is also why we name it Cosmetira salinarum , 
to indicate its strange place of abode. 
MISCELLANEOUS. 
Note on two Bermuda Fishes recently described as new. 
By Dr. A. Gunther. 
In the February number of this Journal, page 150, I described two 
new species of fish from the Bermudas, named Gerres Jonesii and 
Belone Jonesii, in which Mr. G. Browne Goode believes he has re¬ 
cognized two fishes previously described by himself (Amer. Journ. 
1879, April, p. 340). 
With regard to the former, Gerres Jonesii, I beg to observe that, 
