Either of the two parallels of latitude located around 23.3Â° north and south of the equator, respectively, representing the points farthest north and south at which the Sun can shine directly overhead; the regions of the earth siutated between these latitudes.
Having a blunt, square, or even end; ending abruptly as if cut off across the base or tip. Often used in reference to caudal fin shape.
A small, rounded, epidermal projection or protuberance present on the head, body, or fins of some fishes. Often developing temporarily during the spawning season and/or in males only.
Genus of aquatic annelid worms inhabiting the sediment layer in rivers, lakes and, less frequently, sewage channels. Raised commercially and sold live, frozen or freeze-dried as fish food.
Shaped like or having the form of a tube.
Soft, porous form of limestone composed of carbonate minerals and found in ambient temperature, lime-rich springs or lakes. Used as decorative material in aquaria.
Used in reference to water made cloudy or opaque due to stirred-up or suspended material; muddy.
Of wtaer, the quality of having sediment or other material stirred up or suspended.
Can be used to refer to any taxonomic group, the characteristics of which are used for defining related, higher or lower ranking groups. For example, the type of a nominal species is a specimen (type specimen), the type of a nominal genus is the nominal species (type species), and the type of a nominal family […]
Glossary: type designation
Determination and selection of the type of a taxon.
Glossary: type locality
The location, place or source where a holotype or type specimen was found.
Glossary: type material
Collective term for all type specimens in a type series.
Glossary: type series
Series of specimens which either constitutes the name-bearing type of a nominal species or subspecies, or from which the name-bearing type has been or may be designated
Used when a description or illustration serves as a type to refer to the specimen(s) on which it was based.