''Tiphobia horei'' is a species 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 ...
with an
operculum, an aquatic
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
Paludomidae
Paludomidae, common name paludomids, is a family of freshwater snails, gastropod molluscs in the clade Sorbeoconcha.
Distribution
The distribution of the Paludomidae includes Asia and Africa.
Taxonomy
The following three subfamilies have be ...
.
''Tiphobia horei'' is the only species in the genus ''Tiphobia''.
[Brown D. S. (1994). ''Freshwater Snails of Africa and their Medical Importance'', pp. 150–151. ]Taylor & Francis
Taylor & Francis Group is an international company originating in England that publishes books and academic journals. Its parts include Taylor & Francis, Routledge, F1000 (publisher), F1000 Research or Dovepress. It is a division of Informa ...
. . ''Tiphobia'' is the
type genus
In biological taxonomy, the type genus is the genus which defines a biological family and the root of the family name.
Zoological nomenclature
According to the International Code of Zoological Nomenclature, "The name-bearing type of a nominal f ...
of the tribe Tiphobiini.
The specific name ''horei'' is in honor of Reverend
Edward Coode Hore (1848-1912) from the UK.
Distribution and habitat
''Tiphobia horei'' is
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to
Lake Tanganyika
Lake Tanganyika () is an African Great Lake. It is the second-oldest freshwater lake in the world, the second-largest by volume, and the second-deepest, in all cases after Lake Baikal in Siberia. It is the world's longest freshwater lake. ...
.
It is found in
Burundi
Burundi (, ), officially the Republic of Burundi ( rn, Repuburika y’Uburundi ; Swahili language, Swahili: ''Jamuhuri ya Burundi''; French language, French: ''République du Burundi'' ), is a landlocked country in the Great Rift Valley at the ...
, the
Democratic Republic of the Congo
The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...
,
Tanzania
Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and ...
, and
Zambia
Zambia (), officially the Republic of Zambia, is a landlocked country at the crossroads of Central Africa, Central, Southern Africa, Southern and East Africa, although it is typically referred to as being in Southern Africa at its most cent ...
.
The
type locality is Lake Tanganyika at
Ujiji
Ujiji is a historic town located in Kigoma-Ujiji District of Kigoma Region in Tanzania. The town is the oldest in western Tanzania. In 1900, the population was estimated at 10,000 and in 1967 about 41,000. The site is a registered National Histo ...
.
It is typically found on muddy bottoms and often near river mouths. It ranges from the shoreline to a depth of about but tends to be more common in deeper waters.
Description
''Tiphobia horei'' has a large
shell
Shell may refer to:
Architecture and design
* Shell (structure), a thin structure
** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses
** Thin-shell structure
Science Biology
* Seashell, a hard ou ...
with spines, so it is easily to determine.
The width of the shell typically is ,
and the height typically is ,
but the latter can reach up to about .
''Tiphobia horei'' is
ovoviviparous
Ovoviviparity, ovovivipary, ovivipary, or aplacental viviparity is a term used as a "bridging" form of reproduction between egg-laying oviparous and live-bearing viviparous reproduction. Ovoviviparous animals possess embryos that develop insi ...
, there are typically almost 500
embryo
An embryo is an initial stage of development of a multicellular organism. In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male spe ...
s per time and upon being "born" each young is up to about long.
[ This snail feeds on ]detritus
In biology, detritus () is dead particulate organic material, as distinguished from dissolved organic material. Detritus typically includes the bodies or fragments of bodies of dead organisms, and fecal material. Detritus typically hosts commun ...
.
Conservation status
This snail was given Endangered species status in 1996, but in 2006 this was revised to Least Concern
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. T ...
, as it was found to be widespread within the lake and at least locally common.sedimentation
Sedimentation is the deposition of sediments. It takes place when particles in suspension settle out of the fluid in which they are entrained and come to rest against a barrier. This is due to their motion through the fluid in response to the ...
, dredging
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing da ...
and shell collecting
Conchology () is the study of mollusc shells. Conchology is one aspect of malacology, the study of molluscs; however, malacology is the study of molluscs as whole organisms, whereas conchology is confined to the study of their shells. It includ ...
, but these are considered to be minor threats to this species.
References
External links
* Moore J. E. (1898). "The mollusks of the Great African lakes. 2. The anatomy of the Typhobias, with a description of a new genus (''Batanalia'') (sic)". ''Quarterly Journal of Microscopical Science
The ''Journal of Cell Science'' (formerly the ''Quarterly Journal of Microscopical Science'') is a peer-reviewed scientific journal in the field of cell biology. The journal is published by The Company of Biologists. The journal is partnered with P ...
'' 41
181
204. Plat
11
14.
{{Taxonbar, from=Q5221707
Paludomidae
Gastropods described in 1880
Taxa named by Edgar Albert Smith
Taxonomy articles created by Polbot
Snails of Lake Tanganyika