Either of the two parallels of latitude located around 23.3° 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.

Having tubercules.

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.

Swollen; distended.

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 […]

Determination and selection of the type of a taxon.

The location, place or source where a holotype or type specimen was found.

Collective term for all type specimens in a 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.