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Neoplanorbis
''Neoplanorbis'' is a genus of small, freshwater, air-breathing snails. They are aquatic animal, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails. ''Neoplanorbis'' is the type genus of the subfamily Neoplanorbinae. The shells of species in this genus appear to be dextral in coiling, but as is the case in all planorbids, the shell is actually sinistral. The shell is carried upside down with the aperture on the right, and this makes it appear to be dextral. Species The genus ''Neoplanorbis'' includes the following species: * † ''Neoplanorbis carinatus'' Walker, 1908 * † ''Neoplanorbis smithi'' Walker, 1908 * † ''Neoplanorbis tantillus'' Pilsbry, 1906Cordeiro, J. & Perez, K. 2012. Neoplanorbis tantillus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. . Downloaded on 20 October 2012. the type species * † ''Neoplanorbis umbilicatus'' Walker, 1908 Original description Genus ''Neoplanorbis'' was originally describe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neoplanorbis Tantillus
''Neoplanorbis tantillus'' is a species of very small air-breathing freshwater snail, an aquatic animal, aquatic gastropod mollusk in the family Planorbidae, the ram's horn snails. This species is Endemism, endemic to the United States. In 2012, it has been declared extinct by the IUCN Red List of Threatened Species. The shells of this species appear to be dextral in coiling, but as is the case in all planorbids, the shell is actually sinistral. The shell is carried upside down with the aperture on the right, and this makes it appear to be dextral. Original description Species ''Neoplanorbis tantillus'' was originally described by Henry Augustus Pilsbry in 1906. Type locality (biology), Type locality is Coosa River near or in Wetumpka, Alabama. Pilsbry's original text (the type description) reads as follows: Note: "preceding species" in the description means ''Amphigyra alabamensis'', because these two species were newly described in the same work. References {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |