The class Oligochaeta (phylum Annelida) contains a diversity of both aquatic and terrestrial worms, among which is the familiar earthworm, Lumbricus.
Earthworm, also called angleworm, any one of more than 1,800 species of terrestrial worms of the class Oligochaeta (phylum Annelida)—in particular, members of the genus Lumbricus.
This paper deals with terrestrial worm-like locomotion systems living in a straight line.
Sclerotin is found in the cuticle (external covering) and egg cases of insects, the body shell (carapace) of certain crustaceans, and the bristles of terrestrial and marine worms.
They include Clitellata, the freshwater and/or terrestrial "clitellate-like" worms (Parergodrilidae, Hrabeiella, and Aphanoneura [= Aeolosomatidae + Potamodrilus]), some "archiannelids" (Protodrilida and Polygordiidae, both only tentatively regarded as aberrant canalipalpatans), and Psammodrilidae.
Bioconcentration, bioaccumulation and biomagnification of antimicrobials have been observed in multiple organisms, including algae, aquatic blackworms, fish, and even dolphins, whereas affected terrestrial organisms include earth worms and higher species up the food chain.
The researchers suggested that the four-winged creatures were already getting ready to use their hind limbs for terrestrial locomotion, like the robin pursuing worms on a lawn or the disputatious crow strutting around an overturned trash can.
The species Linguatula serrata belongs to the Pentastomida, a still-enigmatic group of worm-like, bloodsucking parasites that inhabit the upper respiratory tract of terrestrial, carnivorous vertebrates, mostly reptiles and birds; L. serrata, commonly called tongue worms, typically inhabit canids and felids.
The parasitic worm spends its childhood growing in the belly of a pill bug, a small terrestrial crustacean that feeds on detritus and dry leaves and, occasionally, worm eggs scattered therein.
There are about 1275 described species [ 5] of nemerteans (ribbon worms, phylum Nemertea); these are mainly marine but terrestrial and freshwater species also are known.
Worms are universal in distribution, occurring in marine, freshwater, and terrestrial habitats.
