| Navarriella elliptica | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Hydrobiidae |
| Genus: | Navarriella |
| Species: | N. elliptica |
| Binomial name | |
| Navarriella elliptica (Paladilhe, 1874) | |
| Synonyms | |
| |
Navarriella elliptica is a species of very small aquatic snail, a spring snail, an operculate gastropod mollusc in the family Hydrobiidae. [2]
The length of the shell attains 2¼ mm, its diameter 1 mm.
(Original description in French) The shell shows an almost non-existent umbilical slit. The shell is ovoid and slightly swollen. It is pale horn-colored, with little shine, and is almost smooth. The spire is slightly tapered, with the columellar axis slightly curved, making the shell appear a bit more bulging on the left side than on the right. The apex is small and somewhat blunt. It contains 3½ to 4 whorls. These are slightly convex, with very rapid growth, especially from the third whorl onward. They are separated by a narrow, fairly deep suture. The body whorl is very large, accounting for at least half of the total height when viewing the shell from the side opposite the aperture, and is greatly expanded on the side of the aperture, following a slightly downward direction towards it. The free edge is slightly hollowed and stretched a bit downward. The aperture is large and is obliquely elliptical. The peristome is straight and slightly thickened. The outer lip is fairly curved, somewhat protruding, and slightly flared at its junction with the columellar lip, which is oblique, weakly arched, thin, and slightly reflected. The operculum is somewhat recessed into the body whorl. it is brown in color, with faint spiral striations. [3]
This species occurs in France, around Ascain (Basses-Pyrénées) and neighbouring Spain (Province of Navarre).
Alzoniella is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the subfamily Islamiinae of the family Hydrobiidae.
Beddomeia minima is a population of freshwater snails that are endemic to Australia. It is commonly classified as a hydrobiid snail. This population was listed as Vulnerable on the IUCN Red List in 2011 due to its distribution being restricted to a single location and range of possible threats present in Tasmania. Beddomeia minima is one of a few fresh water snail species belonging to the same genus Beddomeia that survive in Tasmania, Australia, specifically a single location in the Scottsdale area.
Neoplanorbis tantillus is a species of very small air-breathing freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ram's horn snails. This species is endemic to the United States. In 2012, it has been declared extinct by the IUCN Red List of Threatened Species.
The insular birddrop or San Clemente Island blunt-top snail, scientific name Vertigo clementina, is a species of small, air-breathing land snail, a terrestrial gastropod mollusk in the family Vertiginidae.
Canariella hispidula is a species of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Canariellidae, the hairy snails and their allies.
Aforia staminea is a species of sea snail, a marine gastropod mollusk in the family Cochlespiridae.
Aoteadrillia wanganuiensis is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae.
Spirotropis ephamilla is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Splendrillia raricostata is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Echinogurges clavatus is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae.
Alzoniella iberopyrenaica is a species of very small aquatic snail, a spring snail, an operculate gastropod mollusc in the family Hydrobiidae.
Alzoniella marianae is a species of very small aquatic snail, a spring snail, an operculate gastropod mollusc in the family Hydrobiidae.
Madagasikara johnsoni is a species of tropical freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Pachychilidae.
Zeradina ovata is a species of sea snail, a marine gastropod mollusk in the family Vanikoridae.
Alcadia haitensis is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.
Allopeas mariae is a species of small, tropical, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinidae.
Navarriella is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the subfamily Navarriellinae of the family Hydrobiidae.
Alzoniella perrisii is a species of very small aquatic snail, a spring snail, an operculate gastropod mollusc in the family Hydrobiidae.
Amaea grossicingulata is a species of predatory sea snails, marine prosobranch gastropod mollusks in the family Epitoniidae.
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