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The Vermetidae, the worm snails or worm shells, are a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Littorinimorpha. [1] The shells of species in the family Vermetidae are extremely irregular, and do not resemble the average snail shell, hence the common name "worm shells" or "worm snails".
The Vermetoidea, the worm snails or worm shells, are a taxonomic superfamily of small to medium-sized sea snails, marine gastropod molluscs in the order Littorinimorpha. [1] [2] The shells of species in the family Vermetidae are extremely irregular, and do not resemble the average snail shell, hence the common name "worm shells" or "worm snails"
These quite uncommon shells reach 12–22 millimetres (0.47–0.87 in) of length, with a maximum size of 32 millimetres (1.3 in). The shell surface is smooth and shiny. The dorsum is grey or pale bluish with small brown irregular blotches and spots, one or more trasversal bands and two brown spots at each end, while the base is whitish-grey ...
For much of the year, these worms look like any other burrow-dwelling polychaete, but as the breeding season approaches, the worm undergoes a remarkable transformation as new, specialized segments begin to grow from its rear end until the worm can be clearly divided into two halves. The front half, the atoke, is asexual.
Lanice conchilega, commonly known as the sand mason worm, is a species of burrowing marine polychaete worm. It builds a characteristic tube which projects from the seabed, consisting of cemented sand grains and shell fragments with a fringe at the top. Polychaetes, or marine bristle worms, have elongated bodies divided into many segments.
These worms are toxic, hard to kill, and dangerous to native critters like earthworms, but likely pose little danger to humans or larger animals. ... Bobbi Brown Shares Her Top Face-Transforming ...
The tubes are white and turn brown with age. They are flared at the opening and has flaring rings along their lengths. [2] The mouth can be sealed with a spiny covering (the operculum). [6] Australian tubeworms always live colonially, with many tubes growing together to form small clusters or large reefs. [3] The aggregations are very dense.
Riftia pachyptila, a species known as giant tube worms [1] Lamellibrachia, a genus; Serpulidae, a family; Sabellidae, the family containing feather duster worms; Phoronida, the phylum containing horseshoe worms; Microconchida, an order of extinct tubeworms; Kuphus polythalamia, a bivalve mollusk species whose common name is giant tube worm
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