Congriscus megastomus

Congriscus megastomus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Anguilliformes
Family: Congridae
Genus: Congriscus
Species: C. megastomus
Binomial name
Congriscus megastomus
(Günther, 1877)
Synonyms[1]

Congromuraena megastoma Günther, 1877
Thalassenchelys coheni Castle & Raju, 1975 [2]

Congriscus megastomus is an eel in the family Congridae (conger/garden eels).[3] It was described by Albert Günther in 1877, originally under the genus Congromuraena.[4] It is a marine, temperate-water dwelling eel which is known from Japan and the Kyushu-Palau Ridge, in the northwestern Pacific Ocean. It inhabits reefs. Males can reach a maximum total length of 40 centimetres.[3] Their remarkably large and distinct leptocephalus larvae were previously known under the name Thalassenchelys coheni. In 2016, scientists used genetic techniques to link the larvae to the adult C. megastomus.[5] These larvae reach a maximum size of 30 cm (11.8 in) and have a number of unusual characteristics, two front teeth that may be used for feeding on different prey than smaller eel larvae.[6]

Congriscus megastomus is preyed on by Chlorophthalmus albatrossis.[7] Its own diet includes finfish such as Diaphus coeruleus, Diaphus sagamiensis, Hymenocephalus lethonemus, Synagrops japonicus, and species of Macrura, as well as euphausiid plankton crustaceans and polychaetes.[8]

References

  1. ↑ Synonyms of Congriscus megastomus at www.fishbase.org.
  2. ↑ Kurogi, H., Chow, S., Yanagimoto, T., Konishi, K., Nakamichi, R., Sakai, K., Ohkawa, T., Saruwatari, T., Takahashi, M., Ueno, Y. & Mochioka, N. (2015): Adult form of a giant anguilliform leptocephalus Thalassenchelys coheni Castle and Raju 1975 is Congriscus megastomus (Günther 1877). Ichthyological Research, 63 (2): 239-246.
  3. 1 2 Congriscus megastomus Archived 2013-06-16 at Archive.is at www.fishbase.org.
  4. ↑ Günther, A., 1877 (1 Nov.) [ref. 2009] Preliminary notes on new fishes collected in Japan during the expedition of H. M. S. Challenger.. Annals and Magazine of Natural History (Series 4) v. 20 (no. 119) (art. 56): 433-446.
  5. ↑ Kurogi, Hiroaki; Chow, Seinen; Yanagimoto, Takashi; Konishi, Kooichi; Nakamichi, Reiichiro; Sakai, Kyohei; Ohkawa, Toshiyuki; Saruwatari, Toshiro; Takahashi, Masanori (2015-10-16). "Adult form of a giant anguilliform leptocephalus Thalassenchelys coheni Castle and Raju 1975 is Congriscus megastomus (Günther 1877)". Ichthyological Research. 63 (2): 239–246. doi:10.1007/s10228-015-0492-5. ISSN 1341-8998.
  6. ↑ Miller, Michael (2009-10-31). "Ecology of Anguilliform Leptocephali: Remarkable Transparent Fish Larvae of the Ocean Surface Layer". Aqua-bioscience Monographs. 2. doi:10.5047/absm.2009.00204.0001.
  7. ↑ Predators of Congriscus megastomus at www.fishbase.org.
  8. ↑ Food items reported for Congriscus megastomus at www.fishbase.org.


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