Dendrodorididae

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Dendrodorididae
Doriopsilla albopunctata mating.jpg
Doriopsilla albopunctata
Scientific classification
Kingdom:
Phylum:
Class:
(unranked):
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Family:
Dendrodorididae

O'Donoghue, 1924
Genera

See text.

Synonyms

Doridopsidae Alder & Hancock, 1864

Dendrodorididae is a taxonomic family of sea slugs, dorid nudibranchs, marine gastropod molluscs in the Superfamily Phyllidioidea.

Taxonomy (biology) The science of identifying, describing, defining and naming groups of biological organisms

In biology, taxonomy is the science of defining and naming groups of biological organisms on the basis of shared characteristics. Organisms are grouped together into taxa and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a super-group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum, class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the father of taxonomy, as he developed a system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms.

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".

Sea slug group of marine invertebrates with varying levels of resemblance to terrestrial slugs

Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are actually gastropods, i.e. they are sea snails that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells.

Genera

A maximum-parsimony analysis of the nucleotide sequence of the 16S mtDNA gene, performed in 2003, has shown that the family Dendrodoridae is paraphyletic. [1] Genera in the family Dendrodorididae presently include:

In phylogenetics, maximum parsimony is an optimality criterion under which the phylogenetic tree that minimizes the total number of character-state changes is to be preferred. Under the maximum-parsimony criterion, the optimal tree will minimize the amount of homoplasy. In other words, under this criterion, the shortest possible tree that explains the data is considered best. The principle is akin to Occam's razor, which states that—all else being equal—the simplest hypothesis that explains the data should be selected. Some of the basic ideas behind maximum parsimony were presented by James S. Farris in 1970 and Walter M. Fitch in 1971.

Gene basic physical and functional unit of heredity

In biology, a gene is a sequence of nucleotides in DNA or RNA that codes for a molecule that has a function. During gene expression, the DNA is first copied into RNA. The RNA can be directly functional or be the intermediate template for a protein that performs a function. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic trait. These genes make up different DNA sequences called genotypes. Genotypes along with environmental and developmental factors determine what the phenotypes will be. Most biological traits are under the influence of polygenes as well as gene–environment interactions. Some genetic traits are instantly visible, such as eye color or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that constitute life.

<i>Dendrodoris</i> genus of molluscs

Dendrodoris is a genus of nudibranchs, marine gastropod molluscs in the family Dendrodorididae.

Christian Gottfried Ehrenberg German biologist

Christian Gottfried Ehrenberg, German naturalist, zoologist, comparative anatomist, geologist, and microscopist, was one of the most famous and productive scientists of his time. Ehrenberg was an evangelist.

<i>Doriopsilla</i> genus of molluscs

Doriopsilla is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod molluscs in the family Dendrodorididae.

Related Research Articles

Doridoidea superfamily of molluscs

Doridoidea, commonly known as dorid nudibranchs, are a taxonomic superfamily of medium to large, shell-less sea slugs, marine gastropod mollusks in the clade Doridacea, included in the clade Nudibranchia.

16S ribosomal RNA ribosomal RNA

16S ribosomal RNA is the component of the 30S small subunit of a prokaryotic ribosome that binds to the Shine-Dalgarno sequence. The genes coding for it are referred to as 16S rRNA gene and are used in reconstructing phylogenies, due to the slow rates of evolution of this region of the gene. Carl Woese and George E. Fox were two of the people who pioneered the use of 16S rRNA in phylogenetics in 1977.

Homoiodorididae O'Donoghue, 1924, was considered in the past to be a taxonomic family of nudibranchs, marine gastropod molluscs in the order Opisthobranchia.

Phyllidiidae family of molluscs

Phyllidiidae is a family of sea slugs, dorid nudibranchs, marine gastropod mollusks in the superfamily Phyllidioidea.

Doridacea infraorder of molluscs

Doridacea is a taxonomic grouping of dorid nudibranchs, shell-less marine gastropod mollusks. included in the clade Euctenidiacea of the clade Nudibranchia.

<i>Tambja morosa</i> species of mollusc

Tambja morosa, also known as Tambja kushimotoensis or Gloomy Nudibranch, is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the subfamily Nembrothinae within the family Polyceridae.

Euctenidiacea suborder of molluscs

The Euctenidiacea, common name dorid nudibranchs, are a taxonomic suborder of sea snails or slugs, marine gastropod molluscs in the order Nudibranchia. Bouchet & Rocroi (2005) rejected the name Anthobranchia on the grounds that it also included Onchidium at the time of original publication. Doridina is equivalent and used in the latest classification.

Phyllidioidea superfamily of molluscs

Phyllidioidea is a taxonomic superfamily of colorful sea slugs, dorid nudibranchs, marine gastropod mollusks.

<i>Phyllidiopsis</i> genus of molluscs

Phyllidiopsis is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod molluscs and is the largest genus within the family Phyllidiidae.

<i>Dendrodoris nigra</i> species of mollusc

Dendrodoris nigra is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Dendrodorididae.

<i>Felimare californiensis</i> species of mollusc

Felimare californiensis, common name the California blue dorid, is a species of colourful sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae that eats dysideid sponges.

Verconia verconis is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.

Doriopsilla gemela is a species of dorid nudibranch, a colourful sea slug, a shell-less marine gastropod mollusk in the family Dendrodorididae.

<i>Doriopsilla carneola</i> species of mollusc

Doriopsilla carneola is a species of dorid nudibranch, a colourful sea slug, a shell-less marine gastropod mollusc in the family Dendrodorididae.

Doriopsilla debruini is a species of dorid nudibranch, a colourful sea slug, a shell-less marine gastropod mollusc in the family Dendrodorididae.

Doriopsilla janaina is a species of dorid nudibranch, a colourful sea slug, a shell-less marine gastropod mollusc in the family Dendrodorididae.

Doriopsilla elitae is a species of dorid nudibranch, a colourful sea slug, a shell-less marine gastropod mollusc in the family Dendrodorididae.

Doriopsilla tishae is a species of dorid nudibranch, a colourful sea slug, a shell-less marine gastropod mollusc in the family Dendrodorididae.

<i>Doriopsilla espinosai</i> species of mollusc

Doriopsilla espinosai is a species of dorid nudibranch, a colourful sea slug, a shell-less marine gastropod mollusc in the family Dendrodorididae.

References

  1. Valdés, Angel (2003). "Preliminary molecular phylogeny of the radula-less Dorids (Gastropoda: Opisthobranchia), based on 16S MTDNA sequence data". Journal of Molluscan Studies. Oxford Journals. 69 (1): 75–80. doi:10.1093/mollus/69.1.75. ISSN   1464-3766 . Retrieved 2010-02-01.
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