Mesocoracoid - G

G

• Ganoid scales: Armor-like scales coated with ganoin found in gars and bichirs.
• Genital papilla: a small, fleshy tube behind the anus in some fishes, from which the sperm or eggs are released; the sex of a fish often can be determined by the shape of its papilla.
• Gill arches: the bony arches to which the gills are attached
• Gill cover: or bony flap that covers the gills, the operculum
• Gill filaments: a series of projections along the posterior edge of the gill arch, the site of gas exchange
• Gill membranes: membranes covering the gill openings, attached to the branchiostegals
• Gill opening: opening behind each operculum, leading to the gills
• Gill rakers: a series of appendages along the anterior edges of the gill arches
• Gills, Branchiae: organs for breathing the oxygen contained in water, and for excreting carbon dioxide from the blood
• Glossohyal: the tongue bone
• Gonopodium: a modification of the anal fin of males of certain live-bearing species in the families Anablepidae and Poeciliidae. It is used to transfer reproductive products to the female during mating.
• Gravid: Sexually ripe
• Gular region: pertaining to the region behind the chin and between the sides of the lower jaw