''Turritella terebra'' is a
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
, a marine
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
in the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Turritellidae
Turritellidae, common name the "tower shells" or "tower snails", is a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Sorbeoconcha.
These snails are filter feeders. This method of feeding is s ...
.
Description
The shell of ''Turritella terebra'', has a long tower-like shape which resembles a drill, hence its name. The shell is narrow and tall, with as many as 30 whorls. The shell is about 14
centimeters long. Its color is light to dark
brown
Brown is a color. It can be considered a composite color, but it is mainly a darker shade of orange. In the CMYK color model used in printing or painting, brown is usually made by combining the colors orange and black. In the RGB color model used ...
. The opening is circular.
[ S. Peter Dance, Smithsonian Handbooks: Shells, ]Dorling Kindersley
Dorling Kindersley Limited (branded as DK) is a British multinational publishing company specialising in illustrated reference books for adults and children in 63 languages.
It is part of Penguin Random House, a subsidiary of German media co ...
Publishing.
File:Turritella shells in Vienna Natural History Museum - IZE-2290b.jpg, Shell of ''Turritella terebra''
Distribution
The species is native to the Indo-West Pacific region.
References
Turritellidae
Gastropods described in 1758
Taxa named by Carl Linnaeus
{{Turritellidae-stub