Pig fish

The title of this article is ambiguous. Another group of fish, also known as pig fish, can be found among grunts

Pig fish
Congiopodus torvus
Systematics
Sub-cohort : Neoteleostei Acanthomorphata Spinefish (Acanthopterygii) Perch relatives (Percomorphaceae) Order : Perch-like (Perciformes) Family : Pig fish
Scientific name
Congiopodidae
Gill , 1889

The pig fish (Congiopodidae) are a family of the perch-like (Perciformes). The bottom dwellers live in the cool seas of the southern hemisphere around New Zealand , South America and southern Africa , at depths of up to 500 meters.

features

The fish are 16 to 75 centimeters long. The head is armored. Their muzzle is relatively long, teeth are small or missing. The small gill opening is well below the base of the pelvic fins . They are flaky and their skin is sometimes granular. The lateral line organ is well developed. The dorsal fins have grown together (not in Zanclorhynchus spinifer ).

• Fin formula : dorsal VIII – XXIII / 8–14, anal 0 – III / 5–10, pectoral 8–12

Systematics

There are three genera and nine species , six of which belong to the genus Congiopodus . Alertichthys is monotypical , Zanclorhynchus contains two species. The last genera are put into their own families by some scientists, the Zanclorhynchidae. Ishii and Imamura propose two subfamilies Congiopodinae (for Congiopodus ) and Zanclorhynchinae (for Alertichthys and Zanclorhynchus ). The genus Perryena , which is closely related to the Tetrarogidae in many features , was temporarily classified in the Congiopodidae until a monotypical, independent family for Perryena was established in 2013 , the Perryenidae.

Congiopodus leucopaecilus

Alertichthys blacki

• Subfamily Congiopodinae
  • Genus Congiopodus
    • Congiopodus coriaceus
    • Congiopodus kieneri
    • Congiopodus leucopaecilus
    • Congiopodus peruvianus
    • Congiopodus spinifer
    • Congiopodus torvus
• Subfamily Zanclorhynchinae
  • Genus Alertichthys
    • Alertichthys blacki
  • Genus Zanclorhynchus
    • Zanclorhynchus chereshnevi Balushkin & Zhukov, 2016
    • Zanclorhynchus spinifer

The pig fish are usually placed in the group of scorpionfish relatives (Scorpaenoidei). A study published in February 2018 showed that they are closer to the bull relatives (Cottales) and the eel mother relatives (Zoarcales) than the Scorpaenoidei. The family was therefore placed in its own, monotypical subordination, the Congiopodoidei.

literature

• Joseph S. Nelson : Fishes of the World , John Wiley & Sons, 2006, ISBN 0-471-25031-7 .

Individual evidence

1. ↑ Nozomi Ishii & Hisashi Imamura: Phylogeny of the family Congiopodidae (Perciformes: Scorpaenoidea), with a proposal of new classification . Ichthyological Research, Volume 55, Number 2 / May 2008, doi: 10.1007 / s10228-007-0014-1 .
2. ↑ Honma, Y., Imamura, H. & Kawai, T. (2013): Anatomical description of the genus Perryena, and proposal to erect a new family for it based on its phylogenetic relationships with related taxa (Scorpaeniformes). Ichthyological Research, doi: 10.1007 / s10228-012-0321-z .
3. ↑ Smith, WL, Everman, E. & Richardson, C. (2018): Phylogeny and Taxonomy of Flatheads, Scorpionfishes, Sea Robins, and Stonefishes (Percomorpha: Scorpaeniformes) and the Evolution of the Lachrymal Saber. Copeia 106 (1): 94-119. 2018 doi: 10.1643 / CG-17-669

Web links

Commons : Pigfish  - Collection of images, videos and audio files

• Pig fish on Fishbase.org (English)