Tibia is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of large sea snail

Sea snail

Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....

s, marine

Marine (ocean)

Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod mollusks. This genus has long been considered to be part of the family Strombidae

Strombidae

Strombidae, commonly known as the true conchs, is a taxonomic family of medium-sized to very large sea snails, marine gastropod mollusks in the superfamily Stromboidea....

, the true conch

Conch

A conch is a common name which is applied to a number of different species of medium-sized to large sea snails or their shells, generally those which are large and have a high spire and a siphonal canal....

s and their allies.

However, some authors are of the opinion that recent morphological as well as molecular studies indicate that these ("shinbone shells") should be recognised as a separate family, the Rostellariidae

Rostellariidae

Rostellariidae is a family of sea snails, marine gastropod molluscs in the clade Littorinimorpha.- 2005 taxonomy :This taxon is ranked at subfamily level Rostellariinae within the family Strombidae in the taxonomy of the Gastropoda .- 2008 taxonomy :Rostellariidae is ranked at family level for...

.

The recent species belong to three distinct genera, but several more genera are known from the fossil record.

Species

Species within the genus Tibia include:

• Tibia delicatula
  Tibia delicatula
  Tibia delicatula is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs....
  
  Nevill, 1881
• Tibia fuscus Linnaeus
• Tibia fusus
  Tibia fusus
  Tibia fusus is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs.-Description:Tibia fusus belongs to the Strombidae family and it is considered one of the true conch shells. Tibia fusus is spindle-shaped with a long siphonal canal. It is a fairly common...
  
  (Linnaeus, 1758) - Philippines
  Philippines
  The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
  
  
• Tibia melanocheilus (A. Adams, 1854) - Turtle Island, Philippines
  Philippines
  The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
  
  ; Brunei
  Brunei
  Brunei , officially the State of Brunei Darussalam or the Nation of Brunei, the Abode of Peace , is a sovereign state located on the north coast of the island of Borneo, in Southeast Asia...
  
  
• Tibia insulaechorab
  Tibia insulaechorab
  Tibia insulaechorab, common name the Arabian tibia, is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs....
  
  (Röding, 1798) - Red Sea
  Red Sea
  The Red Sea is a seawater inlet of the Indian Ocean, lying between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb strait and the Gulf of Aden. In the north, there is the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez...
  
  
• Tibia martini
  Tibia martini
  Rostellariella martinii, or Tibia martinii, common name the Martini's tibia, is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs....
  
  Marrat, 1877

• Tibia curta (G. B. Sowerby II, 1842) - Tuticorin, Southern India
  India
  India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
  
  

Note:

• Tibia serrata (Perry, 1811) is now considered to be an aberrant morph of Tibia curta (G. B. Sowerby II, 1842)
• Tibia serrata (G. Perry, 1811) - no longer valid

Related genera

Genus Rostellariella

Rostellariella

Rostellariella is a genus of sea snails, marine gastropod mollusks in the family Strombidae, the true conchs.-Species:Species within the genus Rostellariella include:* Rostellariella barbieri Morrison, 2008...

• Rostellariella delicatula (Nevill, 1881) - Northern Indian Ocean
  Indian Ocean
  The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...
  
  
• Rostellariella lorenzi H. Morrison, 2005 - Arafura Sea
  Arafura Sea
  The Arafura Sea lies west of the Pacific Ocean overlying the continental shelf between Australia and New Guinea.-Geography:The Arafura Sea is bordered by Torres Strait and through that the Coral Sea to the east, the Gulf of Carpentaria to the south, the Timor Sea to the west and the Banda and Ceram...
  
  , Indonesia
  Indonesia
  Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...
  
  
• Rostellariella martinii (Marrat, 1877) - Philippines
  Philippines
  The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
  
  

Genus Rimellopsis

• Rimellopsis powisii (Petit de la Saussaye, 1840) - Cebu, Philippines