Mericella paschalis

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Mericella paschalis
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked):clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily: Cancellarioidea
Family: Cancellariidae
Genus: Mericella
Species:M. paschalis
Binomial name
Mericella paschalis
(Thiele, 1925)
Synonyms [1]

Cancellaria paschalisThiele, 1925

Mericella paschalis is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg 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 common name for snails that normally live in saltwater

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.

Family is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

Contents

Description

Distribution

Related Research Articles

Snail mollusc

A snail is, in loose terms, a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name snail is also used for most of the members of the molluscan class Gastropoda that have a coiled shell that is large enough for the animal to retract completely into. When the word "snail" is used in this most general sense, it includes not just land snails but also numerous species of sea snails and freshwater snails. Gastropods that naturally lack a shell, or have only an internal shell, are mostly called slugs, and land snails that have only a very small shell are often called semi-slugs.

Gastropoda class of molluscs

The gastropods, more commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca, called Gastropoda. This class comprises snails and slugs from saltwater, from freshwater, and from the land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs.

Heterobranchia superorder of molluscs

Heterobranchia, the heterobranchs, is a taxonomic clade of snails and slugs, which includes marine, aquatic and terrestrial gastropod mollusks.

Operculum (gastropod) A hard structure which closes the aperture of a gastropod when the animal retreats into the shell

The operculum, meaning little lid, is a corneous or calcareous anatomical structure like a trapdoor which exists in many groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc.

Frederick Wollaston Hutton scientist

Captain Frederick Wollaston Hutton, FRS, was an English-New Zealand scientist who applied the theory of natural selection to explain the origins and nature of the natural history of New Zealand. An army officer in early life, he then had an academic career in geology and biology. He became one of the most able and prolific nineteenth century naturalists of New Zealand.

Cancellariidae family of molluscs

Cancellariidae, common name the nutmeg snails or nutmeg shells, are a family of small to medium-large sea snails, marine gastropod mollusks in the clade Neogastropoda. Some of the shells of the species in this family resemble a nutmeg seed.

Freshwater snail

Freshwater snails are gastropod mollusks which live in freshwater. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers. The great majority of freshwater gastropods have a shell, with very few exceptions. Some groups of snails that live in freshwater respire using gills, whereas other groups need to reach the surface to breathe air. In addition, some are amphibious and have both gills and a lung. Most feed on algae, but many are detritivors and some are filter feeders.

Mericella bozzettii is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.

Mericella cingulata is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.

Mericella corbicula is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.

Mericella gerda is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.

Mericella jucunda is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.

Mericella santa is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.

Gerdiella is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.

Mericella is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.

<i>Belomitra</i> genus of molluscs

Belomitra is a genus of sea snails, marine gastropod mollusks in the family Belomitridae,.

<i>Stosicia</i> genus of molluscs

Stosicia is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Zebinidae.

Paschalis may refer to:

Terrestrial mollusc

Terrestrial molluscs or land molluscs (mollusks) are ecological group that includes all molluscs that lives on land in contrast to freshwater and marine molluscs.

References