Clavus pusilla
Encyclopedia
Clavus pusilla is a species
of sea snail
, a marine gastropod mollusk in the family
Drilliidae
.
are nearly plane, longitudinally plicately ribbed. The ribs are small and close, descending from the sutures. The aperture
is very short. The siphonal canal
is short and open. The shell is reddish chestnut, the ribs whitish, with a dark band below the middle of the body whorl
.
of tropical Pacific Ocean along the Philippines
, Viti
, Cook Islands
& Paumotu Islands
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 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...
Drilliidae
Drilliidae
Drilliidae is a taxonomic family of small sea snails, marine gastropod mollusks in the superfamily Conoidea.This family has no subfamilies.-Description:...
.
Description
The shell grows to a length of 4 mm. The 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...
are nearly plane, longitudinally plicately ribbed. The ribs are small and close, descending from the sutures. The aperture
Aperture (mollusc)
The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where part of the body of the animal emerges for locomotion, feeding, etc....
is very short. The siphonal canal
Siphonal canal
Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is drawn into the mantle cavity and over the gill and which serves as a chemoreceptor to locate food. In many carnivorous snails, where the siphon is particularly long, the structure...
is short and open. The shell is reddish chestnut, the ribs whitish, with a dark band below the middle of the body whorl
Body whorl
Body whorl is part of the morphology of a coiled gastropod mollusk.- In gastropods :In gastropods, the body whorl, or last whorl, is the most recently-formed and largest whorl of a spiral or helical shell, terminating in the aperture...
.
Distribution
This species occurs in the demersal zoneDemersal zone
The demersal zone is the part of the sea or ocean comprising the water column that is near to the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer of the larger profundal zone....
of tropical Pacific Ocean along the Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
, Viti
Viti
Viti can refer to:* Viti meaning radiance and speed* Viti, Estonia, a village in Estonia.* Viti, a warm crater lake in central Iceland.* Viti is the Albanian-language name of Vitina, a town in Kosovo....
, Cook Islands
Cook Islands
The Cook Islands is a self-governing parliamentary democracy in the South Pacific Ocean in free association with New Zealand...
& Paumotu Islands