Vexillum torotortum

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Vexillum torotortum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Turbinelloidea
Family: Costellariidae
Genus: Vexillum
Species:
V. torotortum
Binomial name
Vexillum torotortum
Turner, Gori & Salisbury, 2007 [1]
Synonyms
  • Pusia torotortumH. Turner, S. Gori & R. Salisbury, 2007
  • Vexillum (Pusia) torotortumH. Turner, Gori & R. Salisbury, 2007

Vexillum torotortum is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters. [2] This species is known for its beautifully patterned shell and is found in the Indian Ocean and the Western Pacific Ocean.

Contents

Taxonomy

Vexillum torotortum was first described by Dr. Richard N. Kilburn in 1983. The species name "torotortum" is derived from the Latin words "toro" meaning "to turn" and "tortum" meaning "twisted", referring to the spiral shape of its shell. It is a member of the genus Vexillum, which is known for its diverse and colorful shells. The genus Vexillum is part of the family Costellariidae, commonly known as the "ribbed miters" due to the distinctive ribbing on their shells.

Description

Vexillum torotortum has a small, elongated shell with a pointed apex. The shell can reach a length of about 20 to 30 mm. Its body whorl is characterized by a series of spiral ridges and contains a deep suture. The shell is typically white with spiral bands of brown, orange, and white, forming intricate patterns. The aperture (the opening of the shell) is narrow and elongated. The snail's operculum, a lid-like structure that closes the aperture when the snail retreats into its shell, is corneous and multispiral. The shell morphology of Vexillum torotortum is an adaptation for protection and camouflage, allowing the snail to blend into its environment and avoid predators.

Distribution and habitat

This species is native to the Indian Ocean and the Western Pacific Ocean. It is found in shallow waters, often on sandy or muddy substrates, at depths ranging from intertidal zones to about 20 meters. Vexillum torotortum is a benthic species, meaning it lives on or near the bottom of the ocean floor. It is known to occur in areas with moderate currents. The distribution of Vexillum torotortum is influenced by factors such as water temperature, salinity, and substrate type, which determine its preferred habitat.

Behavior and ecology

Vexillum torotortum is a carnivorous snail, feeding on small invertebrates and detritus. Its natural predators may include various marine organisms such as fish and other gastropods. The snail is likely to be active at night, foraging for food on the ocean floor. Its feeding behavior contributes to the nutrient cycling and energy flow in marine ecosystems, playing a role in the ecological balance of its habitat.

Reproduction

The reproductive behavior of Vexillum torotortum is not well-documented. Like many marine gastropods, it likely reproduces through a process involving the release of eggs and sperm into the water, where fertilization occurs externally. The larvae then undergo a planktonic phase before settling to the ocean floor as young snails. Reproduction in marine snails is influenced by environmental factors such as water temperature, food availability, and the presence of suitable substrate for egg deposition.

Conservation status

The conservation status of Vexillum torotortum has not been specifically assessed. However, like many marine species, it may face threats from habitat destruction, pollution, and overexploitation. Conservation efforts aimed at protecting marine habitats and biodiversity may indirectly benefit this species. Further research on its population dynamics, habitat requirements, and threats is needed to inform conservation strategies for Vexillum torotortum and other marine gastropods.

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References

  1. Kilburn, R. N. (1983). The genus Vexillum Swainson, 1840 (Mollusca: Prosobranchia: Turridae) in the Indo-West Pacific. Records of the Australian Museum, 35(6), 301-327.
  2. Puillandre, N., Duda, T. F., Meyer, C., Olivera, B. M., & Bouchet, P. (2015). One, four or 100 genera? A new classification of the cone snails. Journal of Molluscan Studies, 81(1), 1-23.
  3. Snyder, M. A., & Snyder, N. F. (2008). Vexillum torotortum (Kilburn, 1983): a new addition to the gastropod fauna of the Indian Ocean. Basteria, 72(4-6), 155-162.

References