''Aliculastrum debile'' is a species of

gastropods Gastropods (), commonly known as slugs and snails, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and from the land. Ther ...

belonging to the family

Haminoeidae Haminoeidae, commonly known as the haminoeid bubble snail family, is a taxonomic family of sea snails, marine opisthobranch gastropod mollusks in the superfamily Haminoeoidea. The name of this family has long been controversial, and used to be ...

Description

The length of the shell attains 11 mm. (Original description) The shell is cylindrically ovate and elongated, tapering towards the posterior end. It is translucent, fragile, and white in color. The outer

lip The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Mammal lips are soft, movable and serve to facilitate the ingestion of food (e.g. sucklin ...

is extended and twisted towards the posterior. The

apex The apex is the highest point of something. The word may also refer to: Arts and media Fictional entities * Apex (comics) A-Bomb Abomination Absorbing Man Abraxas Abyss Abyss is the name of two characters appearing in Ameri ...

is umbilicated, with a striated or grooved

umbilicus Umbilicus may refer to: *The navel or belly button *Umbilicus (mollusc), a feature of gastropod, Nautilus and Ammonite shell anatomy *Umbilicus (plant), ''Umbilicus'' (plant), a genus of over ninety species of perennial flowering plants *Umbilicus ...

that is finely marked by transverse striations. Both ends of the shell display raised transverse lines, and the

columella Lucius Junius Moderatus Columella (, Arabic: ) was a prominent Roman writer on agriculture in the Roman Empire. His in twelve volumes has been completely preserved and forms an important source on Roman agriculture and ancient Roman cuisin ...

features a distinct fold.

Distribution

The marine species has a wide distribution and is found in the Pacific Ocean (Hawaii, Cook Islands); also off Indonesia, Maldives, the Philippines, Papua New Guinea, New Caledonia, Australia.

References

External links

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Conchology.be: image
debile Gastropods described in 1860 {{Heterobranchia-stub