Anterior
front portion.
Barbel
an elongated, hair-like projection, usually about the mouth, chin or nose as in cods and sturgeons (Scott Crossman 1998).
Anterior - At or directed toward the head or forward part of the body.
Apical - At the end or tip of a structure.
Aquatic - Living in or on water.
[edit] Anterior
The area of the body near the front of the fish. For example mouth, eyes and gills.
[edit] Posterior ...
Anterior intestine secretive and absorptive epithelial cells, no villi but numerous folds present, microvilli present, enterocytes with brush border membrane ...
Todos los tests anteriores se basan en generalidades. Cuando uno mira de cerca siempre aparecen excepciones. Algunas plantas son realmente anfibias y les va bien tanto en ambientes cálidos y muy húmedos, como totalmente sumergidas.
payaminonis has extended anterior dorsal fin lappets, although not as long as those of A. cacatuoides. The lateral band is very narrow on live specimens & nonexistent on preserved ones.
For example, erythrocytes, macrophages and plasma cells are produced in the anterior kidney (or pronephros) and some areas of the gut (where granulocytes mature) resemble primitive bone marrow in hagfish.
canaliculus, and these species differ from all other mussels by the absence of an anterior adductor muscle and the brightly green or blue- tinged periostracum (the hard chitinous outer covering of the shell).
The anterior half of the adult male is of a dusky orange shade, and this colour will gradually turn into blue or green towards the posterior. The back usually sports a metallic green colour.
Pufferfish generally exhibit a torpedo-shaped body with a somewhat anteriorly placed dorsal fin containing 7-18 soft rays. The anal fin is situated ventrally, in line with the dorsal fin and containing approximately 7-18 soft rays.
The species is distinguished by the white trim on the anterior portion of the dorsal fins, which distinguish it from S. dhonti and S. multipunctatus, and by a wide mouth and elongated head, which distinguish it from S. petricola.
presence of teeth on vomer, dorsal fin with 5 or 6 segmented rays and with first ray spinous basally, symmetrical, shallowly-forked caudal fin, possession of horizontally-elongate, dark, stellate chromatophores on body, origin of anal-fin anterior of ...
The Sand Sifting Sea Cucumber is one of the few species that attaches its lower body to the inside of its shelter and only extends its anterior half when searching for food.
Pectoral Fins: The anterior or uppermost of the paired fins, which correspond to the anterior limbs of the higher vertebrates.
Pelvic Fins: Paired fins behind or below the pectoral fins.
The Bicolor Pseudochromis, also called the Bicolor Dottyback or Royal Dottyback, is two bold colors; the anterior portion is purple and the posterior portion is bright yellow.
A 30 gallon or larger aquarium should be provided.
Males have an intromittent organ at the anterior of the anal fin and are less robust than females and possibly brighter in color. Eggs are fertilized internally by the male before hatching.
pectoral fins - The anterior or dorsalmost paired fins of fishes. They correspond to the anterior limbs of the higher vertebrates.
The subject species is smaller, the overall body colouration is rather colourless (sort of a gray and sometimes rather transparent) with a bright orange-copper colouration along the anterior and upper sides of the narrower dark mark that is ...
Males are brighter in color than females and have an intermittent organ at the anterior of the anal fin to internally fertilize the eggs within the female before laying.
So the front (Anterior) portion of such a fin is called the Spiney Dorsal and the rear (Posterior) portion is called the Soft Dorsal.
Area where blood and blood cells are formed. In fish this is mainly in the anterior end of the kidney.
Haemoglobin ...
The degree of lighting in the tank usually determines if the fish will appear black silver anterior ends, or just plain silver. When these fish are stressed, they change into their silvery, grayish form.
Mike from Canada adds: "Yes, from each gill arch soft gill filaments radiate posteriorly and are used in breathing and osmoregulation and all that, but the anterior face of the gill arch has, to a varying extent, bony gill rakers.
 See also: Species, Fish, Water, Aquarium, Dorsal
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