Perrona obesa
Encyclopedia
Perrona obesa, common name the obese turrid, is a species
of sea snail
, a marine gastropod mollusk in the family
Clavatulidae
.
are corded below the suture, with a constriction below the cord. The color of the shell is yellowish white, flexuously lineated with chestnut, the corded portion white.
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...
Clavatulidae
Clavatulidae
Clavatulidae is a taxonomic family of sea snails, marine gastropod mollusks in the superfamily Conoidea.The family is not well differentiated morphologically....
.
Description
The size of an adult shell varie sbetween 35 mm and 55 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 corded below the suture, with a constriction below the cord. The color of the shell is yellowish white, flexuously lineated with chestnut, the corded portion white.