Chrysoblephus lophus explained

Chrysoblephus lophus, the false red stumpnose or the false Englishman, is a species of marine ray-finned fish belonging to the family Sparidae, the seabreams and porgies. This species is endemic to the South African waters of the southwestern Indian Ocean.

Taxonomy

Chrysoblephus lophus was first formally described as Sparus lophus in 1925 by the American zoologist Henry Weed Fowler with its type locality the coast of KwaZulu Natal. The genus Chrysoblephus is placed in the family Sparidae within the order Spariformes by the 5th edition of Fishes of the World.[1] Some authorities classify this genus in the subfamily Sparinae,[2] but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae.[1]

Etymology

Chrysoblephus lophus has the specific namelophus which means "crested", an allusion to the high nape in adult males of this species.[3]

Description

Chrysoblephus lophus has its dorsal fin is supported by 11 spines, the 3rd to 5th spines being clearly elongated in comparison to the others, and 10 soft rays. The anal fin contains 3 spines and 9 soft rays. It has a deep and compressed body with a blunt snout and a steep, almost vertical, dorsal profile to the head. It a little bulbous from above the upper lip to the area between the eyes which is bony and corrugated and which becomes rougher as the fish ages. The overall colour of the body is silvery reddish orange marked with between 5 and 8 light coloured vertical bars and with a pale belly.[4] The false red stumpnose has a maximum published total length of, although is more typical.

Distribution and habitat

Chrysoblephus lophus is endemic to the southwestern Indian Ocean off the coast of Southern Africa. It occurs in South Africa from Sodwana Bay to East London, South Africa, and has been reported off Madagascar. Records from Mozambique remain unconfirmed.[4] It is found at depths between on deeper offshore reefs.

Biology

Chrysoblephus lophus preys on molluscs, crustaceans, echinoderms and smaller fish. Little is known about the reproductive biology but it is thought they may be hermaphroditic and spawning occurs in Spring.

External links

Notes and References

  1. Book: Nelson, J.S. . Joseph S. Nelson . Grande, T.C. . Wilson, M.V.H. . 2016 . Fishes of the World . 5th . . Hoboken, NJ . 502-506 . 978-1-118-34233-6 . 2015037522 . 951899884 . 25909650M . 10.1002/9781119174844.
  2. Parenti, P. . 2019 . An annotated checklist of the fishes of the family Sparidae . FishTaxa . 4 . 2 . 47-98 .
  3. Web site: Order SPARIFORMES: Families LETHRINIDAE, NEMIPTERIDAE and SPARIDAE . The ETYFish Project Fish Name Etymology Database . 10 January 2024 . 22 December 2023 . Christopher Scharpf.
  4. Book: Yukio Iwatsuki . Phillip C Heemstra . and . Family Sparidae . 284–315 . Coastal Fishes of the Western Indian Ocean . 3 . . Elaine Heemstra . David A Ebert . Wouter Holleman . . 2022 . 978-1-990951-32-9 . South African Institute for Aquatic Biodiversity .