Clavatula perronii
Encyclopedia
Clavatula perronii is a species
of sea snail
, a marine gastropod mollusk in the family
Clavatulidae
.
Johann Hieronymus Chemnitz (1730-1800) adopted a Dutch name " the perron," for this species, and Lovell Augustus Reeve
(1814-1865) erroneously supposing it to be in honor of a naturalist, changed its form from Clavatula perron to Clavatula perronii.
The pale, yellow, fusiform shell is turreted and rather smooth. The whorls
are flat, with flexuous longitudinal lines, slightly angulated round the upper part. The lower portion of the last whorl is contracted and with several regular, distant revolving ridges. The anal sinus is nearly central.
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....
.
Johann Hieronymus Chemnitz (1730-1800) adopted a Dutch name " the perron," for this species, and Lovell Augustus Reeve
Lovell Augustus Reeve
Lovell Augustus Reeve was an English conchologist.Lovell Augustus Reeve was initially apprenticed to a grocer of Ludgate Hill between 1827 and '34...
(1814-1865) erroneously supposing it to be in honor of a naturalist, changed its form from Clavatula perron to Clavatula perronii.
Description
The shell grows to a length of 25 mm.The pale, yellow, fusiform shell is turreted and rather smooth. The whorls
Whorl (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 flat, with flexuous longitudinal lines, slightly angulated round the upper part. The lower portion of the last whorl is contracted and with several regular, distant revolving ridges. The anal sinus is nearly central.