Bathydoridoidei
Infraorder containing only the deep-sea family Bathydorididae.
Bathydoridoidei is an infraorder of dorid nudibranchs, shell-less marine gastropod mollusks. It contains a single superfamily, Bathydoridoidea, which in turn contains only the family Bathydorididae. This infraorder is notable for being the sole representative of its taxonomic group at that rank.
Quick Facts
- Grandparent Authority
- Minichev & Starobogatov, 1979
- Taxon
- Bathydorididae
- Type Genus
- Bathydoris
- Type Genus Authority
- Bergh, 1884
Facts from the source article.
Lore & Background
Bathydoridoidei is the infraorder that encompasses the superfamily Bathydoridoidea and its sole family, Bathydorididae. The family includes two genera: Bathydoris, described by Bergh in 1884, and Prodoris, described by Baranetz in 1997. Members of the genus Bathydoris are known to live in deep water, below 1,500 meters. The type species for Bathydoris is Bathydoris abyssorum, also described by Bergh in 1884. Other species in the genus include Bathydoris aioca, Bathydoris antoni, Bathydoris hodgsoni, Bathydoris ingolfiana, Bathydoris japonensis, and Bathydoris spiralis. The genus Prodoris contains the species Prodoris clavigera.
Reader's Guide
Bathydoridoidei holds significance as a distinct infraorder within the nudibranchs, defined by its exclusive membership of the family Bathydorididae. The article establishes that this infraorder is the only one in its superfamily, and that superfamily is the only one in the family, making it a monotypic lineage at multiple taxonomic levels. The deep-water habitat of Bathydoris species, living below 1,500 meters, highlights the ecological specialization of this group. The taxonomy includes two genera: Bathydoris, with multiple species described from 1884 onward, and Prodoris, added later in 1997. The type species, Bathydoris abyssorum, anchors the genus. The article does not provide information on the broader evolutionary relationships, geographic distribution, or conservation status of Bathydoridoidei, nor does it mention any disputed classifications. Its legacy is primarily taxonomic, as a clearly defined infraorder with a single family adapted to abyssal depths.
Did You Know?
- Bathydoridoidei contains only one superfamily, Bathydoridoidea.
- The family Bathydorididae is the only family in the superfamily Bathydoridoidea.
- Members of the genus Bathydoris live in deep water below 1,500 meters.
- The type species of Bathydoris is Bathydoris abyssorum, described by Bergh in 1884.
Frequently Asked Questions
What is Bathydoridoidei?
Bathydoridoidei is an infraorder of dorid nudibranchs, meaning it groups shell-less marine gastropod mollusks. It is an extremely narrow taxonomic unit, housing just one superfamily (Bathydoridoidea) that in turn holds a single family (Bathydorididae).
What families are included in Bathydoridoidei?
Only Bathydorididae falls under this infraorder, and it is the sole family within the superfamily Bathydoridoidea as well. This one-to-one-to-one chain makes Bathydoridoidei a uniquely compact branch of nudibranch classification.
What is the type genus and type species of Bathydoridoidei?
The type genus is Bathydoris, and the type species anchoring the entire infraorder is Bathydoris abyssorum. That single species serves as the taxonomic reference point for the whole group.
Where do Bathydoridoidei species live?
Members of this infraorder are deep-sea dwellers, found at depths below 1,500 meters. They are not the kind of nudibranchs you would spot in a shallow-water snorkeling trip.
Why is Bathydoridoidei notable in nudibranch taxonomy?
It is the sole infraorder representing its particular taxonomic lineage at that rank, with no sister infraorders at the same level. Its rigid single-superfamily, single-family structure makes it a distinctive and easy-to-remember node in dorid nudibranch systematics.
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