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Fish anatomy is the study of the form or morphology of fish.It can be contrasted with fish physiology, which is the study of how the component parts of fish function together in the living fish. [1]
Ombilinichthys yamini is the oldest known gourami. The family Osphronemidae is divided into the following subfamilies and genera: [3] [4] family Osphronemidae van der Hoeven, 1832
At least five extinct genera, known only from fossils, are classified as osteoglossids; these date back at least as far as the Late Cretaceous.Other fossils from as far back as the Late Jurassic or Early Cretaceous are widely considered to belong to the arowana superorder Osteoglossomorpha.
The Asian arowana (Scleropages formosus) comprises several phenotypic varieties of freshwater fish distributed geographically across Southeast Asia. [3] While most consider the different varieties to belong to a single species, [4] [5] [6] [3] [7] work by Pouyaud et al. (2003) [8] differentiates these varieties into multiple species.
The heart is a muscular organ found in humans and other animals.This organ pumps blood through the blood vessels. [1] Heart and blood vessels together make the circulatory system. [2]
Lionfish have 18 venomous spines total: 2 pelvic spines, 3 anal spines, and 13 dorsal spines. Pterois is a genus of venomous marine fish, commonly known as the lionfish, native to the Indo-Pacific.
Scorpaenidae was described as a family in 1826 by the French naturalist Antoine Risso. [1] The family is included in the suborder Scorpaenoidei of the order Scorpaeniformes in the 5th Edition of Fishes of the World [2] but other authorities place it in the Perciformes either in the suborder Scorpaenoidei [3] or the superfamily Scorpaenoidea. [4]
Marine angelfish are perciform fish of the family Pomacanthidae.They are found on shallow reefs in the tropical Atlantic, Indian, and mostly western Pacific Oceans.The family contains seven genera and about 86 species.