Jump to content

Marginella gemmula

From Wikipedia, the free encyclopedia

Marginella gemmula
Apertural (right) and abapertural (left) views of a shell of M. gemmula
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Marginellidae
Subfamily: Marginellinae
Genus: Marginella
Species:
M. gemmula
Binomial name
Marginella gemmula
Synonyms

Marginella (Kaokomarginella) gemmula Bavay, 1912· accepted, alternate representation

Marginella gemmula is a species of very small sea snail, a marine gastropod mollusk in the family Marginellidae, the margin snails.[1]

Description

[edit]

Shell

[edit]

The shell of Marginella gemmula, while glossy and smooth to the touch, has spires that can be anywhere from flat to moderately elevated. Most shells have various colors, but a small number can be colorless. On the outside of the shell, the columella has four plaits. The outside lip is thicker than other such creatures, and the inside of the shell sports a denticulate set of teeth and/or folds. Unlike other gastropods, Marginella gemmula's siphonal canal is not very deep, but is still present. There is no operculum present with Marginella gemmula.

Flesh

[edit]

The head of Marginella gemmula is bifurcated, with the siphon extending behind it. When moving, the foot of the animal extends past the shell.

Distribution

[edit]

This species occurs in Angola at depths between 15 m and 35 m.[1]

References

[edit]
  1. ^ a b Marginella gemmula Bavay. Retrieved through: World Register of Marine Species on 24 April 2010.
  • Gofas, S.; Afonso, J.P.; Brandào, M. (Ed.). (S.a.). Conchas e Moluscos de Angola = Coquillages et Mollusques d'Angola. [Shells and molluscs of Angola]. Universidade Agostinho / Elf Aquitaine Angola: Angola. 140 pp.
  • Cossignani T. (2006). Marginellidae & Cystiscidae of the World. L'Informatore Piceno. 408pp
  • Gofas S. & Fernandes F. 1994. The Marginellidae of Angola. The genus Marginella. Journal of Conchology 35(2): 103-119
[edit]
  • "Marginella (Kaokomarginella) gemmula". Gastropods.com. Retrieved 16 January 2019.
  • Dautzenberg P. (1912) Mission Gruvel sur la côte occidentale d'Afrique (1909-1910): Mollusques marins. Annales de l'Institut Océanographique, Paris, (Nouvelle Série) 5(3): 1-111, pl. 1-3