336 THE AMERICAN NATURALIST. [Vou. XXXVII. 
Periphylla humilis Fewkes. 1884. 
Bell low conical, diameter twice that of height. Rhopalia 4, provided 
with protecting hood; marginal tentacles 12, of yellow color. Color of 
exumbrella brown, rough and opaque; central disk and corona rather uni- 
form brownish in color. 
Distribution.— Off Martha’s Vineyard as for previous species. 
Periphylla perontt Heckel, 1880. 
Charibdea periphylla, Per. & Les. 1809. 
C. periphylla, L. Ag. 1862, Cont. Nat. Hist. U. S. 
Stomolophus periphylla, Fewkes? 
Umbrella low conical, about as broad as high. Marginal lappets 16, 
eight tentacular and eight ocular. Tentacles long and stout, about as broad 
at the base as the marginal lappets. Manubrium about as broad as high, 
somewhat cubical. 
Distribution. Tropical Atlantic, (L. Agassiz), St. George’s Bank (S. I. 
Smith). 
FAMILIES OF CUBOMEDUS& : 
Of the Cubomedusz only a single Family has been represented by spe- 
cies within the range of this synopsis, namely Charibdeida, and under this 
but a single genus and species. 
Charybdea verrucosa Hargitt, 1902. Fig. 3. 
Several specimens were taken at Woods Holl during the 
summer of 1902 and have been 
described by the present writer, Azz. 
Nat. July, 1902. Bell ovoid in out- 
line, as seen in profile, cuboid viewed 
ee 
is 
from the aboral pole. Size from 2 to 
e 
3 mm. in short diameter by 4 to 5 mm. 
in the height. Surface dotted irregu- 
larly with light brownish, warty clus- 
ters of nematocysts. Rhopalia 4, pre- 
radially located, set in rather deep 
pockets, and shielded by projecting 
hoods. Tentacles short and spindle- 
like, with deep annulations, interra- 
dially situated. Velarium well-devel- 
Fic. 3. Charybdea verrucosa Har- 
gitt. 
