
No, 427.] CELENTERATE FAUNA OF WOODS HOLE. 559 
rapid decline of vigor and health. In small aquaria numerous 
cases of cannibalism were noted, the scyphistome greedily 
devouring any planula which came within the grasp of the 
vigilant tentacles, the entire process of engulfing the victims 
being several times observed. 
A Cubomedusa from Woods Hole. — Several specimens of an 
interesting medusa of this order were taken in the tow, the 
first on August 13, in Great Harbor, a second the following 
day at North Falmouth, Buzzards Bay. Two or three others 
were taken within the next day in Great Harbor. 
In general features the medusa resembles very closely one 
figured by Mayer from the Tortugas (Bull. Mus. Comp. Zoöl., 
Vol. XXXVII, No. 2, p. 70), and to a less 
degree a medusa described by Fewkes from 
the Bermudas (Bull. Mus. Comp. Zool, Vol. 
XI, No. 3). In many respects, however, it 
differs from both, namely, in its larger size, | 
deeper color, apparent absence of gastric fila- 
ments, figured by Mayer. Both Fewkes and 
Mayer consider the specimens taken by them 
as immature, and their identification was 
accordingly somewhat doubtful, the former 
assigning his to the genus Tamoya, the latter 
referring his, together with that of Fewkes, tothe genus Charib- 
dea. Certain it seems that unless the specimens are immature 
they could hardly be included within either genus, or indeed 
within any other of the at present recognized genera of the 
family. The absence of velar canals and pedalia, as well as 
the very short tentacles, would of themselves be sufficient to 
exclude them. 
The same is likewise true of the specimens under considera- 
tion. They are so nearly identical in morphological features, 
size, etc., as to suggest something like maturity, unless, per- 
chance, they should be indigenous species, — an exceedingly 
doubtful supposition. If borne hither from the Tortugas or 
Bermuda by currents, it would seem that the time involved in 
transit should have given at least some differentials of size or 
other peculiarity. 


Fic. 4. — Charibdea 
verrucosa. 
