Hippeutis complanatus
Encyclopedia
Hippeutis complanatus, or the flat ram's-horn snail, is a species
of minute air-breathing freshwater snail
, an aquatic
pulmonate gastropod mollusk or micromollusk
in the family Planorbidae
, the ram's horn snails.
Hippeutis complanatus is the type species of the genus Hippeutis.
zone, including Europe.
s overlap one another. The shell color varies from offwhite to a brownish yellow.
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
of minute air-breathing freshwater snail
Freshwater snail
A freshwater snail is one kind of freshwater mollusc, the other kind being freshwater clams and mussels, i.e. freshwater bivalves. Specifically a freshwater snail is a gastropod that lives in a watery non-marine habitat. The majority of freshwater gastropods have a shell, with very few exceptions....
, an aquatic
Aquatic animal
An aquatic animal is an animal, either vertebrate or invertebrate, which lives in water for most or all of its life. It may breathe air or extract its oxygen from that dissolved in water through specialised organs called gills, or directly through its skin. Natural environments and the animals that...
pulmonate gastropod mollusk or micromollusk
Micromollusk
A micromollusk is a descriptive term for a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also reach adult size at very small...
in the family Planorbidae
Planorbidae
Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks....
, the ram's horn snails.
Hippeutis complanatus is the type species of the genus Hippeutis.
Distribution
The species is found in the PalearcticPalearctic
The Palearctic or Palaearctic is one of the eight ecozones dividing the Earth's surface.Physically, the Palearctic is the largest ecozone...
zone, including Europe.
- Latvia
- Czech Republic - least concern (LC)
- Slovakia
- Poland
- Germany
- Austria
- Netherlands
- Sweden
- British Isles: Great Britain, Ireland
Shell description
This minute shell is almost perfectly planispiral and shaped like a lens. The whorlWhorl (mollusc)
A whorl is a single, complete 360° revolution or turn in the spiral growth of a mollusc shell. A spiral configuration of the shell is found in of numerous gastropods, but it is also found in shelled cephalopods including Nautilus, Spirula and the large extinct subclass of cephalopods known as the...
s overlap one another. The shell color varies from offwhite to a brownish yellow.
External links
- http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/species?id=1196