392 KJERSCHOW AGERSBORG 
C, kincaidi (sp. noç.) (1921) Puget Sound (Friday fiarbor) 
Washington (fig. 1,2.) 
Clione kincaidi is a new species, named in honor of my 
friend and teacher, Professor Trevor Kincaid, who first found 
this species in Puget Sound. During the summer of 1921, 
it \Yas found in rather large numbers especially during July 
and August, at the Puget Sound Biological Station, Friday 
Harbor, Washington, drifting past the floating dock of the 
Station. They were especially abundant on the 26th of 
July which was a rather stormy day. On either side of the 
float, where the water was less disturbed, they could be seen 
at a depth of ca. 1 meter; on the 29th, I found them ail 
through the Sound between the Station and Brown Island, 
and on this day I dipped up 150 specimens. -They were com- 
monly found swimmmg in vertical position. From the study 
in the aquarium it was found that the stroke of the fins 
was at a rate of ca. one per sec., the fins almost touching at 
the tips on the ventral stroke. The speed of the fin-stroke 
varied somewhat with the size of the individual, but it 
increased more commonly when the organism turned in a 
horizontal position, at the surface, when it would bend the 
body to one side and swin rather vigorously in a circle. By 
the beating of the fins, with one stroke to the sec., the animal 
would seldom progress to the surface; at times, when rea- 
ching the surface, it would remain an instant and then sink 
only again to repeat the process. Many of them were thus 
in a vertical position, appearing first as a red speck, owing 
to the red viscera, but upon doser inspection the translucent 
body would also be seen. Sometimes, they seemed to res- 
pond to light, and this seemed to difîer with their physiolo- 
gical condition. In the daytime, after feeding, they became 
negatively phototropic; after a day's interval of feeding, 
they became positivelyphototropic; on thenightof August the 
5th, I used a 60-Watt Tungsten lamp near the surface of the 
bav; at first no Clione were visible, but after a while a goodly 
number came to the surface but only to be swept away by the 
passing current. This shows that Clione kincaidi is positively 
phototropic at night as well as in the day. The living orga- 
