For the setae of each segment are increased to a large number much exceeding eight.
Two setae are located on the vertex and two on the occupit of head.
setae numerous; the appendage short, falcate, with tip simple, but a slender tooth near middle of curved edge.
setae dark amber to nearly ferruginous, darker than usual in squamatus.
For the restriction of the setae to the ventral surface obviously favours progression upon a surface and not through a medium.
setae all simple, limbate, in a single series of mostly six in the middle region of the body.
The third genus mentioned, Dinodrilus, is a New Zealand form specialised in possessing 12 setae in each segment.
The head bears four setae, and some of the ridges bear a pair either dorsally or ventrally.
The Desmoscolecida move by looping their bodies like geometrid caterpillars or leeches, as well as by creeping on their setae.
The abdomen possesses three rows of setae on each side above the spiracles.
seta se·ta (sē'tə)
n. pl. se·tae (-tē)
A stiff hair, bristle, or bristlelike process or part.
Plural setae (sē'tē)
A stiff hair, bristle, or bristlelike process or part on an organism. Setae on the bodies of spiders are used as sensory organs, while setae on the bodies of many polychaete worms, such as earthworms, are used for locomotion. Microscopic setae on the feet of geckos allow adhesion to vertical surfaces.