Eulimella trewae
Encyclopedia
Eulimella trewae is a species
of sea snail
, a marine
gastropod mollusk in the family
Pyramidellidae
, the pyrams and their allies.
The epithet "trewae" refers to Mrs A. Trew who is the curator in charge of the molluscan collection at the National Museum Cardiff
with a relatively deep suture and a few axial folds. The inner part of the outer lip
is smooth. The umbilicus is lacking.
at depths between 26 mm and 200m.
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
of sea snail
Sea snail
Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....
, a marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...
gastropod mollusk in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Pyramidellidae
Pyramidellidae
Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs or micromolluscs....
, the pyrams and their allies.
The epithet "trewae" refers to Mrs A. Trew who is the curator in charge of the molluscan collection at the National Museum Cardiff
National Museum Cardiff
National Museum Cardiff is a museum and art gallery in Cardiff, Wales. The museum is part of the wider network of Amgueddfa Cymru – National Museum Wales...
Description
The length of the shell varies between 2.7 mm and 3.5 mm. The white shell has a conical shape with a spiral microstructure and with a blunt top. The protoconch is helicoid. The teleoconch contains six to seven flat whorlsWhorl (mollusc)
A whorl is a single, complete 360° revolution or turn in the spiral growth of a mollusc shell. A spiral configuration of the shell is found in of numerous gastropods, but it is also found in shelled cephalopods including Nautilus, Spirula and the large extinct subclass of cephalopods known as the...
with a relatively deep suture and a few axial folds. The inner part of the outer lip
Lip (gastropod)
In the shell of a gastropod mollusk , the margin of the aperture is called the lip or the peristome. In other words, this is a term used to describe part of gastropod shell anatomy....
is smooth. The umbilicus is lacking.
Distribution
This species occurs in the Atlantic Ocean off MauritaniaMauritania
Mauritania is a country in the Maghreb and West Africa. It is bordered by the Atlantic Ocean in the west, by Western Sahara in the north, by Algeria in the northeast, by Mali in the east and southeast, and by Senegal in the southwest...
at depths between 26 mm and 200m.