''Mitromorpha insolens'' is a species 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 ...
Mitromorphidae
Mitromorphidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Mitromorphidae Casey, 1904. In: MolluscaBase (2018). Accessed through: World Register of Marin ...
.
Description
The length of the shell attains 2.9 mm, its diameter 1.3 mm.
The very small shell has a pale and clear straw color throughout. The about fifteen ribs are separated by fully their own widths. They are much more nearly obliterated between the strong spirals than the latter are between the ribs.
Casey T.L. (1904) ''Notes on the Pleurotomidae with description of some new genera and species.'' Transactions of the Academy of Science of St. Louis, 14, 123–170
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Distribution
This species occurs in the Atlantic Ocean off St. Helena
Saint Helena () is a British overseas territory located in the South Atlantic Ocean. It is a remote volcanic tropical island west of the coast of south-western Africa, and east of Rio de Janeiro in South America. It is one of three constitu ...
.
References
External links
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{{DEFAULTSORT:Mitromorpha Insolens
insolens
Gastropods described in 1904