Plectorhinchus

Genus of ray-finned fishes From Wikipedia, the free encyclopedia

Plectorhinchus is a genus of marine ray-finned fish, sweetlips belonging to the subfamily Plectorhinchinae which is one of two subfamilies in the family Haemulidae which also includes the grunts. The species in this genus are found in fresh, brackish, and salt waters.

Quick facts Scientific classification, Type species ...
Plectorhinchus
Temporal range: 23–0 Ma Miocene to Present[1]
Plectorhinchus chaetodonoides
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Haemulidae
Subfamily: Plectorhinchinae
Genus: Plectorhinchus
Lacépède, 1801[2]
Type species
Plectorhinchus chaetodonoides
Lacépède, 1801[3]
Synonyms[3]
List
    • Euelatichthys Fowler, 1904
    • Gaterin Forsskål, 1775
    • Leitectus Smith, 1952
    • Pluchus Smith, 1949
    • Pseudohelotes Guimarães, 1882
    • Pseudopristipoma Sauvage, 1880
    • Spilotichthys Fowler, 1904
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Description and characteristics

These fish have big, fleshy lips and tend to live on coral reefs in the Indo-Pacific in small groups or pairs. They will often associate with other fishes of similar species; several species of sweetlips sometimes swim together. They are usually seen in clusters in nooks and crannies or under overhangs. At nightfall, they venture from their shelters to seek out their bottom-dwelling invertebrate prey, such as bristleworms, shrimps, and small crabs.

Sweetlips colouring and patterning changes throughout their lives. For example, Plectorhinchus polytaenia develops more stripes with age. Juvenile sweetlips generally look quite different from the adults, and often live solitary lives on shallower reef sections. Juveniles may be banded or spotted and are usually a completely different colour from the adults of their species. Small juveniles have an undulating swimming pattern, possibly mimicking poisonous flatworms as a means of predator avoidance.[4][5]

Juvenile Plectorhinchus lessonii off Taiwan

Species

These are the currently recognized species in this genus:

References

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