BIGELOW: COAST WATER EXPLORATION OF 1913. 315 
has been the subject of much discussion. The two have usually been 
separated according to the number of otocysts, specimens with eight 
being classed as rosea, those with four as digitale. But such a division 
is purely artificial, because specimens often have five, six, or seven oto- 
cysts. Mayer (1910) unites the two unequivocally. I have followed 
him in my discussion of Aglantha from Behring Sea (1913a) and 
Kramp (1914, p. 432) likewise concludes that the number of otocysts 
is not sufficiently constant to afford a specific character, though main- 
taining that rosea is recognizable as a variety of digitale. It is doubt- 
ful, however, whether even this last characterization of rosea will 
stand the test of time. 
Every specimen of Aglantha in the present collection which was in 
good enough condition to show the otocysts at all had at least seven, 
and their spacing along the margin of the bell was such as to show that 
the number in life was eight. These specimens range from 7-11 mm. 
in height, with 39-94 tentacles; and are at various stages of maturity, 
from one with no gonads to one in which they are fully developed. 
| The many specimens which I have studied from Labrador and New- 
| foundland likewise had eight otocysts (1909c, p. 312). These were 
| recorded under the name rosea, following the custom usual at that 
| time, for Aglantha with eight otocysts. And although Kramp (1913a, 
|p. 527) has recently questioned whether these specimens were actually 
| rosea, it was so simple a matter to count the otocysts that there can be 
}no doubt that they belonged to the form with eight of these organs, 
jno matter what may be its final nomenclatural resting place. And 
at may add that all the specimens of Aglantha from American waters, 
_ Atlantic or Pacific, on which I have been able to count the otocysts 
have more than four; usually eight. 
i: Cyanea. The specimens from the Gulf of Maine and from George’s 
Bank belong to the large, red northern race (“arctica”’); but we found 
only the small yellowish form (fulva L. Agassiz) south of New York. 
| Stephanomia cara. The generic identity of the material is estab- 
jished by the fact that the few tentilla still intact have the involucre 
ind single terminal filament. And the bracts and nectophores, which 
ere taken in great numbers, agree perfectly with S. cara as described 
"y A. Agassiz (1865) and by Fewkes (1888). But unfortunately the 
-naterial was not in good enough condition to show whether or not 
e northern cara is actually separable from the southern bijuga. 
| Pleurobrachia pileus. Mayer (1912) has recently described a new 
_leurobrachia, P. brunnea, from just the locality where Pleurobrachia 
as found in greatest numbers; which makes a review of the grounds 
a which [ class our specimens as pileus desirable. 
| 
