Caption: Convict cichlid skin (Cichlasoma nigrofasciatum). The convict cichlid, Cichlasoma nigrofasciatum (formerly known as Archocentrus nigrofasciatum), is a laterally compressed cichlid with an oval body shape. The body color is white to very light gray with eight or nine transverse black bars. It is an aggressive fish despite its size. Fish skin like many other vertebrates (amphibians, reptiles, birds, mammals) consists of two principal layers - superficial epidermis and deeper dermis. The epidermis consists of two or more layers. The deepest is a series of closely packed, discrete cells called the germinal layer, or stratum germinativum. The outer epidermal cells are formed from the germinal layer. Body fish slimes are produced by epidermal cells and their degradation. Epidermal cells can have highly convoluted surfaces that retain slime that has a primary function of protection from pathogens and parasites.
Magnification*: x600
Type: SEM
Copyright 2005 Dennis Kunkel Microscopy, Inc.
Keywords: 25208C,08.01.05,Archocentrus nigrofasciatum,convict cichlid,epithelial cell,epithelial cells,fish epidermis,fish skin,germinal layer,Misc. Vertebrates,SEM,stratum germinativum,superficial epidermis,fish epithelia,fish epithelium