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The color of the shell varies from white to light brown, with a series of brown spiral stripes. This snail is known for its distinct pattern and intricate design on the outer shell. the shell pattern of Daphnella dilecta is unique and no two organisms of this species will have the same shell pattern.
Red racer nerites are small snails that only grow to a maximum diameter of 3 cm (1.2 in). They have shells that have highly variable patterns in red, orange, yellow, black, and white. The patterns often form bands of repeating "arrows" resembling racing stripes, which is the source of their common name "racer." Red racer snails are amphibious ...
These fairy large, thick and heavy shells are glossy, with plaits on the columella. They have a wide variety of patterns. [8] The shell colour may be beige, orange or yellow with a zig-zag red or brown pattern. Sometimes these shells are completely black. The fleshy body of the snail is black with bright yellow or orange spots. [5]
The two Cepaea species share a genetic polymorphism for the colour and banding pattern of the shell. The background colour of the shell ranges from dark brown, through pink to yellow or even approaching white. This variation is continuous, but there are peaks in the distribution corresponding to brown, pink and yellow morphs. [13]
It is three-dimensional ornamentation on the outer surface of the shell, as distinct from either the basic shape of the shell itself or the pattern of colouration, if any. Sculpture is a feature found in the shells of gastropods , bivalves , and scaphopods .
Although normally a freshwater snail, this species is very tolerant of brackish water, and has been recorded in waters with a salinity of 32.5 ppt (1,024 specific gravity salinity). It is however a warm-climate species. It appears to prefer a temperature range of 18 to 25 °C (64 to 77 °F) [5] or of 18 to 32 °C (64 to 90 °F). [6]
Cornu aspersum in warm regions commonly emerges in moist weather in winter. Sinistral form (exceptional) and dextral form (common) The adult bears a hard, thin calcareous shell 25–40 millimetres (1– 1 + 5 ⁄ 8 in) in diameter and 25–35 millimetres (1– 1 + 3 ⁄ 8 in) high, with four or five whorls.
The grove snail, brown-lipped snail or lemon snail (Cepaea nemoralis) is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc. [3] It is one of the most common large species of land snail in Europe, and has been introduced to North America. Subspecies. Cepaea nemoralis etrusca (Rossmässler, 1835) [4]