| Pickenia | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Cingulopsidae |
| Genus: | Pickenia |
| Species: | P. signyensis |
| Binomial name | |
| Pickenia signyensis (Ponder, 1983) | |
Pickenia is a monotypic genus of minute sea snails, a marine gastropod mollusk in the family Cingulopsidae. [1] The only known species is Pickenia signyensis, found on Signy Island in the South Orkney Islands.
The maximum recorded shell length is 1.48 mm. [2] The shell is a pale orange-brown colour, with a yellow-brown aperture. The protoconch is usually dark purple-brown. [3]
The holotype is held by Amgueddfa Cymru – Museum Wales. [4]
The species has only been found on Signy Island in the South Orkney Islands. The holotype was collected by G. Picken in 1977. [3]
The species' holotypes and paratypes were collected from rocky bottom on algae off the coast of Signy Island. [3] The minimum recorded depth is 4 m. [2] Maximum recorded depth is 10 m. [2]
Cingulopsidae is a family of sea snails, marine gastropod molluscs in the clade Littorinimorpha.
Conus harlandi is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Conus magnottei is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Margarella antarctica is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae, the top snails.
Skenella georgiana is a species of minute sea snail, a marine gastropod mollusk in the family Cingulopsidae.
Skenella paludinoides is a species of minute sea snail, a marine gastropod mollusk in the family Cingulopsidae.
Skenella umbilicata is a species of minute sea snail, a marine gastropod mollusk in the family Cingulopsidae.
Skenella wareni is a species of minute sea snail, a marine gastropod mollusk in the family Cingulopsidae.
Eatoniella cana is a species of minute sea snail, a marine gastropod mollusk in the family Eatoniellidae, the eatoniellids.
Eatoniella contusa is a species of minute sea snail, a marine gastropod mollusk in the family Eatoniellidae, the eatoniellids.
Eatoniella varicifera is a species of minute sea snail, a marine gastropod mollusk in the family Eatoniellidae, the eatoniellids.
Skenella is a genus of minute sea snails, marine gastropod mollusks in the family Cingulopsidae.
Onoba anderssoni is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Onoba delecta is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Subonoba gelida is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Onoba georgiana is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Onoba grisea is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Onoba kergueleni is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Onoba steineni is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Subonoba turqueti is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae. The maximum recorded shell length is 3.05 mm. Minimum recorded depth is 5 m. Maximum recorded depth is 167 m.