Guentherus

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Guentherus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Ateleopodiformes
Family: Ateleopodidae
Genus: Guentherus
Osório, 1917, Katoi, 2008

Guentherus is a genus of jellynose fishes, belonging to the Ateleopodidae family, with two recognized species: [1]

Contents

The genus distinguishes itself from others in its family because of discrepancies in morphology. Guentherus has "3 free rays followed by 6–9 normal rays with membrane between them in the pelvic fins." [2] Other genera in this family have "a single long filament or 1 relatively developed ray plus 0 to 3 rudimentary rays." [3]

Guentherus katoi Guentherus katoi.jpg
Guentherus katoi
Ateleopus japonicus Ateleopus japonicus.jpg
Ateleopus japonicus

Family: Ateleopodidae

The family Ateleopodidae is made up of four genera and within that thirteen species: Ateleopus, Ijimaia, Parateleopus, Guentherus. [4] Ateleopodids are located primarily near tropical and subtropical waters; with Ateleopus, Parateleopus, and Guentherus located in the Pacific and Ijimaia located in the Atlantic. [5]

Scientific Name for Species Under Ateleopodidae Family [4]
GenusSpecies
Ateleopusindicus
Ateleopuspurpureus
Ateleopusntalensis
Ateleopusdofleini
Ateleopusplicatellus
Ateleopusjaponicus
Ateleopustanabensis
Ataleopusnatalensis
Ijimaialoppei
Ijimaiaantillarum
Parateleopusmicrostomus
Guentherusaltivela
Guentheruskaoti
Ateleopus pilcatellus shares the same family as Guentherus. Their distinction being most notable in their fin differentiation. FMIB 42725 Ateleopus plicatellus Gilbert, new species Type.jpeg
Ateleopus pilcatellus shares the same family as Guentherus. Their distinction being most notable in their fin differentiation.

Ateleopodids are commonly referred to as Jellynose fish or alternatively also called tadpole fish "because of their very soft and gelatinous snout." [6]

Genus: Guentherus

The genus Guentherus was created by Balthazar Osorio in 1917 upon his discovery of the Guentherus ativela species. [7] The genus Guentherus differentiates from its other Ateleopodids because of their "posterior placement and structure of  its pelvic fins-three free rays followed by  a normal pelvic fin." [8] They are a benthically dwelling ray-finned fish. Guentherus Ativela is known to feed on copepods and polychaetas. [9]

Species

Guentherus Katoi


Distribution

Guentherus Katoi was named after Mr. Tatsuya Kato who was the one to capture it. G. Katoi has been found at depths of 1,000-2,000 feet. [7] The onlAteleopus japonicus.jpg y specimens of G. katoi have been found off the coast of Southern Japan down to the outlying southern Okinawa Islands. [7]

Physical Description

They are a scaleless Actinopterygii species with jaws though lacking teeth.

Defining characteristics

It can be distinguished from other species in its genus because of its lack of lateral line and scales. [10]

Guentherus altivela

Bibliography

ateleopodid fish reported from the eastern Pacific Ocean. Revista De Biologia Tropical, 25, (2) 179-190. Retrieved from https://revistas.ucr.ac.cr/index.php/rbt/article/view/25828/26188

P. H. (2017). Distribution, composition and functions of gelatinous tissues in deep-sea fishes.  Royal Society, 4, (12): 171063. doi : 10.1098/rsos.171063

Ateleopodidae) in the Pacific waters of Japan. Journal of  Ichthyology, 46, 342-344. doi : 10.1134/S0032945206040072

(Ateleopodiformes: Ateleopodidae) from Japan. Bulletin of the National Museum of Nature and Science, 2, 13-19. Retrieved from https://www.kahaku.go.jp/research/publication/zoology/s2/S_02Senou_et_al.pdf

fish Ijimaia antillarum in the south-western Atlantic. Marine Biodiversity Records, 4, doi : 10.1017/S1755267211000595

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References

  1. Froese, Rainer and Pauly, Daniel, eds. (2012). Species of Guentherus in FishBase . February 2012 version.
  2. Schroeder, Rafael; Schwarz, Richard; Schwingel, Paulo R. (July 2011). "The occurrence of the jellynose fish Ijimaia antillarum in the south-western Atlantic". Marine Biodiversity Records. 4. doi:10.1017/S1755267211000595. ISSN   1755-2672.
  3. Schroeder, Rafael; Schwarz, Richard; Schwingel, Paulo R. (July 2011). "The occurrence of the jellynose fish Ijimaia antillarum in the south-western Atlantic". Marine Biodiversity Records. 4. doi:10.1017/S1755267211000595. ISSN   1755-2672.
  4. 1 2 "FAMILY Details for Ateleopodidae - Jellynose fishes". www.fishbase.in. Retrieved 2021-03-20.
  5. Bussing, William A.; S, Myrna I. López (1977). "View of Guentherus altivela Osorio, the first ateleopodid fish reported from the eastern Pacific Ocean". Revista de Biología Tropical. 25 (2): 179–190. Retrieved 2021-03-20.
  6. Hollingworth, Chuck, ed. (March 2005). "The Living Marine Resources of the Western Central Atlantic. Volume 1: Introduction, molluscs, crustaceans, hagfishes, sharks, batoid fishes, and chimaeras. Volume 2: Bony fishes part 1 (Acipenseridae to Grammatidae). Volume 3: Bony fishes part 2 (Opistognathidae to Molidae), sea turtles and marine mammals. FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special Publication No. 5". Fish and Fisheries. 6 (1): 89–90. doi:10.1111/j.1467-2679.2005.00172.x. ISSN   1467-2960.
  7. 1 2 3 4 5 6 Senou, Hiroshi (14 April 2021). "A New Species of the Genus Guentherus (Ateleopodiformes: Ateleopodidae) from Japan" (PDF). Bull. Natl. Mus. Nat. Sci., Ser. 2: 13–19.
  8. Bussing, William A.; S, Myrna I. López (1977). "View of Guentherus altivela Osorio, the first ateleopodid fish reported from the eastern Pacific Ocean". Revista de Biología Tropical. 25 (2): 179–190. Retrieved 2021-03-20.
  9. Macpherson, Enrique (1989). "Influence of geographical distribution, body size and diet on population density of benthic fishes off Namibia (South West Africa)" (PDF).
  10. Senou, H., Kuwayama, S., & Hirate, K. (2008). A new species of the genus Guentherus (Ateleopodiformes: Ateleopodidae) from Japan. Bulletin of the National Museum of Nature and Science, 2, 13-19. Retrieved from https://www.kahaku.go.jp/research/publication/zoology/s2/S_02Senou_et_al.pdf