Английская Википедия:Cephalopyge trematoides

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Cephalopyge trematoides is a pelagic species of nudibranch. A free-swimming marine gastropod in the family Phylliroidae.[1] Cephalopyge trematoides is the only known species in its genus (i.e. the genus is monotypic).[2]

Etymology

Cephalopyge is a contraction of cephalus (Greek: κεφαλή Шаблон:Lang, "head") and Шаблон:Transl (πūγή, "behind") referring to the position of the anus close to the head. The species epithet trematoides expresses a likeness to flukes.[3]

Description

C. trematoides grows to 2.5 cm in length. It swims at approximately 12 cm/s, by passing several undulatory waves down its body each second.[4] It is flattened and transparent; its internal organs are visible.[2]

Pelagic nudibranchs

Of the approximately 3000 species of nudibranch, the vast majority are benthic, only a couple are neustonic, and C. trematoides is very unusual in that it is pelagic.[5][6] It is estimated to be one of only five planktonic nudibranch species (another epipelagic example is Phylliroe bucephala).[7]

Further information (including photos):

References

Шаблон:Reflist

External links

Шаблон:Taxonbar

  1. World Register of Marine Species
  2. 2,0 2,1 Marine species identification portal: Cephalopyge and Cephalopyge trematoides.
  3. Шаблон:Cite book
  4. Sea Slugs of Hawaii
  5. J.E. Steinberg, The pelagic nudibranch, Cephalopyge trematoides (Chun, 1889), in New South Wales with a note on other species in this genus, Proceedings of the Linnean Society of New South Wales 81:184-192 (1956) [1]
  6. G.M. Mapstone & M.N. Arai, Siphonophora (Cnidaria, Hydrozoa) of Canadian Pacific Waters, p.33. "The best documented predators of pelagic cnidarians from the phylum Mollusca are the neustonic nudibranchs and snails [...and] the pelagic nudibranch [...]"
  7. Orso Angulo-Campillo, Gerardo Aceves-Medina and Raymundo Avedaño-Ibarra, Holoplanktonic mollusks (Mollusca: Gastropoda) from the Gulf of California, México [2] Шаблон:Webarchive