Eptatretus bischoffii

Source: Wikipedia, the free encyclopedia.

Eptatretus bischoffii

Data Deficient  (IUCN 3.1
)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Infraphylum: Agnatha
Class: Myxini
Order: Myxiniformes
Family: Myxinidae
Genus: Eptatretus
Species:
E. bischoffii
Binomial name
Eptatretus bischoffii
Synonyms[2][3]
  • Bdellostoma bischoffii Schneider 1880
  • Heptatretus decatrema Regan 1912
  • Eptatretus decatrema (Regan 1912)

Eptatretus bischoffii is a common

demersal, non-migratory, marine habitat with its depth range between 8–50 m. It can survive in only temperate zones. These organisms are found in the South Pacific, mainly, Chile
. It is harmless to humans.

The mode of reproduction in this kind of organism is

functional hermaphrodite
. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies.

The eggs develop in the demersal areas. The shape of the eggs are elongated. The egg contains a single micropylar opening located at the animal pole. It is situated at the bottom of a micropylar cup which lies between the anchor filaments. The single filaments are 3.2–4.9 millimetres (0.13–0.19 in) long and have an anchor-shaped apical end. The number of filaments varies around 50 but is always smaller on the vegetative end. On both ends of laid eggs, the filaments are enveloped by a gel-like matrix intertwined with large cytoskeletal biopolymers (keratin-like intermediate filaments) of possible holocrine origin.

References

  1. ^ "Eptatretus bischoffii". Integrated Taxonomic Information System.
  2. ^ Froese, R.; Pauly, D. (2017). "Myxinidae". FishBase version (02/2017). Retrieved 18 May 2017.
  3. PMID 25543675
    .