Atys convexa | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
(unranked): | clade Heterobranchia informal group Opisthobranchia clade Cephalaspidea |
Superfamily: | Haminoeoidea |
Family: | Haminoeidae |
Genus: | Atys (gastropod) |
Species: | A. convexa |
Binomial name | |
Atys convexa H.B. Preston, 1908 | |
Atys convexa is a species of small tropical sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Haminoeidae, the haminoea bubble snails. [1]
In biology, a species ( ) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.
Sea snail is a common name for snails that normally live in salt water, in other words marine gastropods. The taxonomic class Gastropoda also includes snails that live in other habitats, such as land snails and freshwater snails. Many species of sea snails are edible and exploited as food sources by humans.
Haminoeidae, commonly known as the haminoeid bubble snail family, is a taxonomic family of sea snails, marine opisthobranch gastropod mollusks in the superfamily Haminoeoidea.
This marine species occurs off the Andaman Islands.
The Andaman Islands form an archipelago in the Bay of Bengal between India, to the west, and Myanmar, to the north and east. Most are part of the Andaman and Nicobar Islands Union Territory of India, while a small number in the north of the archipelago, including the Coco Islands, belong to Myanmar.
The length of the shell of this species attains 3.25 mm, its diameter 2 mm.
(Original description) The umbilicate shell is tumid, ovate and constricted at the ends. It hasa pale lemon colour, with two irregular narrow greenish bands especially noticeable on the ventral surface. It is smooth, polished except at the ends where it is spirally grooved. The apex is closed. The aperture is narrow above but broadening below. The columella descends obliquely, curved outwards and produced. The peristome is simple, rising high above the vertex. [1]
In anatomy, an apex is part of the shell of a mollusk. The apex is the pointed tip of the shell of a gastropod, scaphopod, or cephalopod.
The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal emerges for locomotion, feeding, etc.
The columella or pillar is a central anatomical feature of a coiled snail shell, a gastropod shell. The columella is often only clearly visible as a structure when the shell is broken, sliced in half vertically, or viewed as an X-ray image.
Atys is a genus of very small to medium-sized sea snails, marine opisthobranch gastropod mollusks in the family Haminoeidae.
Hydatina is a genus of sea snails, bubble snails, marine opisthobranch gastropod mollusks in the family Aplustridae.
Haminoea is a genus of medium-sized sea snails or bubble snails, marine opisthobranch gastropod molluscs in the family Haminoeidae, the haminoea bubble snails, part of the clade Cephalaspidea, the headshield slugs and bubble snails.
Drillia investigatoris is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Cinguloterebra anilis is a species of sea snail, a marine gastropod mollusk in the family Terebridae, the auger snails.
Myurella columellaris is a species of sea snail, a marine gastropod mollusk in the family Terebridae, the auger snails.
Clanculus margaritarius, common name the beautiful clanculus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Bullina is a genus of sea snails or bubble snails, marine gastropod molluscs in the family Aplustridae.
Calliotrochus marmoreus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Drillia fraga is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Drillia sikesi is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Odostomia andamanensis is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
Atys neglectus is a species of small tropical sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Haminoeidae, the haminoea bubble snails.
Atys pacei is a species of small tropical sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Haminoeidae, the haminoea bubble snails.
Atys vixumbilicata is a species of small tropical sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Haminoeidae, the haminoea bubble snails.
Drillia ochroleuca is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Eucithara dubiosa is a small sea snail, a marine gastropod mollusk in the family Mangeliidae.
Eucithara duplaris is a small sea snail, a marine gastropod mollusk in the family Mangeliidae.
Mangelia andamanensis is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
Mangelia exasperata is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.