- Source: Marginella
Marginella is a very large genus of small tropical and temperate sea snails, marine gastropod molluscs in the subfamily Marginellinae of the family Marginellidae, the margin snails. It is a type of genus family.
The shells of species in this genus are rounded, smooth and glossy, with a large aperture that appears to be toothed because it shows the edge of the columellar folds. In many species the shells are colorful. The glossy surface of the shell results from the fact that the mantle covers most of the shell when the animal is active. As is typical in the Neogastropoda, the animal has a long siphon. When the animal is active, the foot extends much further out than the edge of the shell.
As is also typical for the Neogastropoda, species in this genus are carnivorous and also predatory.
Etymology
Marginella means "little margin".
Shell description
The shells of the species in this genus have spires which range from moderately elevated to flattened. The surface of the shell is glossy and porcellaneous, and it is often but not always colourful. The columella has four definite, subequal plaits on its anterior half. The outer lip is thickened, and generally denticulate inside, with distinct teeth or folds. The siphonal canal is not deeply incised.
There is no operculum.
Description of the soft parts
In the living animal, the mantle only partly extends over the shell when the animal is moving.
The head is bifurcated, with slender tentacles and eyes in small bulges lateral to the base of tentacles. The siphon is large and protrudes over the head. The foot is large and flat, and when it is extended is slightly longer than the shell.
Ecology
= Distribution
=This genus is found in tropical and temperate seas worldwide.
Species
Species within the genus Marginella include:
Species inquirenda
(species of doubtful identity needing further investigation.)
Marginella claudoni Bavay, date unknown:
Marginella decaryi Bavay, 1920:
Marginella delphinica Bavay, 1920:
Marginella dispoliata Jousseaume, 1922
Marginella peasii Reeve, 1865
Marginella scalariformis Duclos, date unknown:
Marginella terverianella Bavay, 1922
Marginella virgula Jousseaume, 1922:
Nomen dubium, i.e. a name of unknown or doubtful application
Marginella granum Philippi, 1849:
Marginella indistincta W. H. Turton, 193
Marginella pyrrha W. H. Turton, 1932
Species brought into synonymy
= Western Atlantic species
== Western Africa species
== Southern Africa species
== Eastern Africa species
=References
Bartsch, P. 1915. Report on the Turton collection of South African marine mollusks, with additional notes on other South African shells contained in the United States National Museum. Bulletin of the United States National Museum, Issued 28 July 1915.
Cossignani T. (2006). Marginellidae & Cystiscidae of the World. L'Informatore Piceno. 408pp
External links
Media related to Marginella at Wikimedia Commons
Malacolog (four Marginella species names are listed for the Western Atlantic Ocean, one name is not available). Malacolog is created by Dr. Gary Rosenberg, The Academy of Natural Sciences, Philadelphia
Kata Kunci Pencarian:
- Neriene marginella
- Deltaspis marginella
- Mecas marginella
- Alampyris marginella
- Minicia marginella
- Phytomyza marginella
- Tipula (Yamatotipula) marginella
- Alampyris nigra
- Alampyris curta
- Alampyris cretaria
- Marginella
- Clitocybe marginella
- Caracolus marginella
- Stenomacra marginella
- Marginella anapaulae
- Hydrothassa marginella
- Marginella rubrocincta
- Marginella bairstowi
- Nupserha marginella
- Marginella punctilineata
