Stem slender, creeping, and furnished with tendrils, or claspers.
The claspers seem to be the tergal portions of the ninth segment.
The pelvic fins in the male bear long grooved cartilaginous rods which are accessory copulatory organs or claspers.
This one also has humped segments, and the claspers of the thirteenth segment are imperfectly developed.
The caterpillars have long and slender twig-like bodies, and are never provided with more than two pairs of claspers.
Its mouth and jaws have quite disappeared, and the legs and claspers are apparently gone.
In the Elasmobranchs, as already stated, large organs of cartilage (claspers) are developed from the ventral fins.
The caterpillar is pale grey, with four white stripes, and has only three pairs of claspers.
These are connected with the antenn, and are known as the "claspers," from their function in seizing and holding the female.
The leaves vary from one to six inches long, and at the extremities are placed two blades, or claspers.