''Cyclophorus phongnhakebangensis'' is a species of

land snail A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial molluscs, terrestrial gastropod mollusks that have gastropod shell, shel ...

from the family

Cyclophoridae Cyclophoridae is a taxonomic family of small to large tropical land snails with an operculum, terrestrial gastropod mollusks in the order Architaenioglossa belonging to the subclass Caenogastropoda (according to the taxonomy of the Gastropod ...

Description

''Cyclophorus phongnhakebangensis'' is a medium-sized '' Cyclophorus'' species with an overall rounded

shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses Science Biology * Seashell, a hard outer layer of a marine ani ...

shape and a typically circular

aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...

. Shells have a breadth of 26.0–32.8 mm, a height of 20.5–26.2 mm, and 4.75–5.25

whorls A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). In nature File:Photograph and axial plane floral diagram ...

. The

body whorl The body whorl is part of the morphology (biology), morphology of the gastropod shell, shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk ...

has a slightly compressed or compressed shape and is usually rounded. The early whorls of the shell have a bluish colouration in some individuals. The reflected and simple

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 ...

has an ivory, white or peach colouration. A wing-shaped projection at the shell's columellar margin is not pronounced or absent. The shell's colour pattern is generally variable and includes patterns such as zig-zag stripes, spiral lines, spiral bands and transverse lines in different shades of brown. The peripheral band of the shell has usually a dark brown colour.

Distribution

''Cyclophorus phongnhakebangensis'' is only known from

Phong Nha-Kẻ Bàng National Park Phong may refer to: Computer graphics *Phong shading *Phong reflection model * Blinn–Phong shading model * Bui Tuong Phong - creator of the Phong shading interpolation method and reflection model. Other * Phong-Kniang language * Nam Phong ...

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

Etymology

The name of this species refers to its type locality in Phong Nha-Kẻ Bàng National Park, Vietnam.

References

{{Taxonbar, from=Q100488839 phongnhakebangensis Gastropods described in 2019 Endemic fauna of Vietnam Molluscs of Vietnam