''Rivomarginella morrisoni'' is a
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
freshwater snail
Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...
,
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
in the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Marginellidae
Marginellidae, or the margin shells, are a Taxonomy (biology), taxonomic family (biology), family of small, often colorful, sea snails, Marine (ocean), marine gastropod molluscs in the clade Neogastropoda.
Taxonomy
The higher classification of ...
, the margin snails.
''Rivomarginella morrisoni'' is the type species of the genus ''Rivomarginella''.
[Bouchet, P.; Gofas, S. (2015). ''Rivomarginella''. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=465265 on 2016-01-02]
Distribution
It is native to central Thailand:
Mae Klong River
The Mae Klong (, , ), sometimes spelled Mae Khlong or Meklong, is a river in western Thailand. The river begins at the confluence of the Khwae Noi (Khwae Sai Yok) and the Khwae Yai River (Khwae Si Sawat) in Kanchanaburi, it passes Ratchaburi ...
,
Prachin Buri River,
Nan River
The Nan River ( th, แม่น้ำน่าน, , ) is a river in Thailand. It is one of the most important tributaries of the Chao Phraya River.
Geography
The Nan River originates in the Luang Prabang Range, Nan Province. The provinces ...
,
Klong Bang O,
Klong Ban Yikkan,
Klong Prapa,
Klong Rapipat.
The type locality is Prachin Buri River,
Kabin Buri District, Thailand.
Description
The height of the shell is 5.4 - 11.3 mm.
[Coovert G. A. & Coovert H. K. (1995). "Revision of the Supraspecific Classification of Marginelliform Gastropods". '' The Nautilus'' 109(2-3): 43-110, page]
92-93
Ecology
''Rivomarginella morrisoni'' lives in rivers, lakes, and canals.
References
Marginellidae
Gastropods described in 1968
{{Marginellidae-stub