1
The motile organs are cirri and cilia, all inserted in the constriction.
2
In the figure given by Quennerstedt there are only 7 ventral cirri.
3
The cirri emerge from minute hollows in the edge of the anterior border.
4
The contractile vacuole lies on the right side dorsal to the posterior cirri.
5
One or more rings of cirri rise in the groove.
6
The ventral cirri are short and thick, and are very characteristic of the species.
7
At the posterior end an oblique hollow bears 6 unequal cirri placed side by side.
8
Five large cirri extend outward from the anterior extremity.
9
Round the horizon it was of steely brilliancy, while reddish cumuli and cirri floated southwards.
10
The anal cirri, 5 in number, are long and stiff; the marginal cirri smaller and finer.
11
The anus is on the right side in the region of the anal cirri (Stein).
12
There are 5 posterior cirri and 4 anal cirri, of much smaller size.
13
These cirri are placed in depressions in the ventral surface and each one appears to come from a specific shoulder.
14
The cirri may or may not be fimbriated, the latter condition indicating the approaching disintegration of the body and is abnormal.
15
Seven or 8 cirri are placed in the anterior half of the ventral surface and are arranged more or less in rows.
16
There are two and one-half rows of ventral cirri and the marginal cirri are drawn in until they are ventral in position.