Results for “specimen”

neotype

A single specimen designated as the name-bearing type of a species subsequent to its description, most often when the holotype, lectotype, and syntype no longer exist.

Used in 14 profiles

nuchal hump

A protruding growth of tissue found on the head in sexually-mature, usually male, specimens of certain fishes.

Used in 42 profiles

reintroduction

Deliberate release of an organism or group of organisms into an area or habitat previously inhabited by the taxon but from where it has been lost. Primarily carried out for conservation purposes using specimens taken from captivity or relocated from a different area.

Used in 5 profiles

standard length

Measurement taken from the tip of the snout to the midlateral, posterior edge of the hypural plate or posterior edge of the last vertebra, thus excluding the caudal fin. May also exclude the length of the lower jaw should it project beyond the snout. It is the standard scientific measurement used for most fish species because the caudal fin easily becomes damaged in preserved specimens. Abbreviated to SL.

Used in 48 profiles

syntype

Any specimen within a type series if no holotype or lectotype has been designated, the syntypes collectively representing the name-bearing type.

Used in 2 profiles

topotype

A specimen collected from the type locality of a given species.

Used in 1 profile

total length

Straight line measurement of specimen's length taken from the tip of the snout to the tip of the longer lobe of the caudal fin, if applicable, and not taking the curve of the body into account. If the caudal lobes are of equal length they may be compressed along the midline before the measurement is taken. Abbreviated to TL.

Used in 6 profiles

transverse scale row

Number of scales in the diagonal row between the orgins of dorsal and anal fins in a fish specimen, excluding the lateral line scales.

Used in 10 profiles

type locality

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

Used in 916 profiles

type material

Collective term for all type specimens in a type series.

Used in 5 profiles

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 in 120 profiles

typotype

Used when a description or illustration serves as a type to refer to the specimen(s) on which it was based.