Ascidiidae
Encyclopedia
Ascidiidae is a family
of tunicate
s in the class
Ascidiacea
.
Some species
contain elevated amounts of vanadium
.
There are 4 genera
:
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
of tunicate
Tunicate
Tunicates, also known as urochordates, are members of the subphylum Tunicata, previously known as Urochordata, a group of underwater saclike filter feeders with incurrent and excurrent siphons that is classified within the phylum Chordata. While most tunicates live on the ocean floor, others such...
s in the class
Class (biology)
In biological classification, class is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, order, family, genus, and species, with class fitting between phylum and order...
Ascidiacea
Ascidiacea
Ascidiacea is a class in the Tunicata subphylum of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer "tunic" made of the polysaccharide tunicin, as compared to other tunicates which are less rigid.Ascidians are found all over the world, usually in shallow...
.
Some species
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...
contain elevated amounts of vanadium
Vanadium
Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery gray, ductile and malleable transition metal. The formation of an oxide layer stabilizes the metal against oxidation. The element is found only in chemically combined form in nature...
.
There are 4 genera
Genera
Genera is a commercial operating system and development environment for Lisp machines developed by Symbolics. It is essentially a fork of an earlier operating system originating on the MIT AI Lab's Lisp machines which Symbolics had used in common with LMI and Texas Instruments...
:
- AscidiaAscidiaAscidia is a genus of tunicates in the family Ascidiidae.-Selected species:* Ascidia archaia Sluiter, 1890* Ascidia bocatorensis Bonnet & Rocha, 2011* Ascidia collini Bonnet & Rocha, 2011* Ascidia corallicola Bonnet & Rocha, 2011...
- Ascidiella
- PhallusiaPhallusiaPhallusia is a genus of tunicates of the family ascidians, which includes the following species:*Phallusia aperta *Phallusia arabica Savigny, 1816*Phallusia barbarica Kott, 1985*Phallusia colleta Phallusia is a genus of tunicates of the family ascidians, which includes the following...
- Psammascidia