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A shell-dwelling Lamprologus ocellatus. The terms shell dwellers or shelldwellers, shell-breeding, or ostracophil are descriptive terms for cichlid fish that use the empty shells of aquatic snails as sites for breeding and shelter. The terms have no taxonomic basis, although most shell-dwelling cichlids are from Lake Tanganyikas lamprologine ...
A tank should have at least one shell per fish, ideally two. Two other species of fish are similar to N. multifasciatus; N. similis and N. brevis. The three species are similar enough that stores normally sell them all under the common name "shellies" or "shell dwellers". [15]
The Macrotritopus defilippi, or the sand-dwelling octopus, was seen mimicking both the coloration and the swimming movements of the sand-dwelling flounder Bothus lunatus to avoid predators. The octopuses were able to flatten their bodies and put their arms back to appear the same as the flounders as well as move with the same speed and movements.
Loss of the shell has taken place many times in different groups that are not evolutionarily closely related, and land snails and slugs are most often treated together as a single group in specialized malacological literature. [2] [3] All terrestrial molluscs belong to the class Gastropoda.
Umbilicated – Having an opening in the base of the shell. [1] Undulated – Having undulations or waves. [1] Univalve – Having the shell composed of a single piece, as a snail. [1] Varicose – Swollen or enlarged. [1] Vascular – Containing or made up of blood vessels. [1] Vermiform – Formed like a worm. [1] Ventral – The lower border ...
Cornu aspersum (formerly Helix aspersa)—a common land snail Shell of Marisa cornuarietis, a freshwater snail. Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks [a] (/ ˈ m ɒ l ə s k s /).
Instead, a segmented shell gland forms on one side of the larva, and a foot forms on the opposite side. When the larva is ready to become an adult, the body elongates, and the shell gland secretes the plates of the shell. Unlike the fully grown adult, the larva has a pair of simple eyes, although these may remain for some time in the immature ...
"One is their biology makes them very, very hard to get rid of. They reproduce faster than you can shoot them." They will eat anything to survive, according to Brook. They tear up land and ...