Glossary

genera

Plural of genus.

Used in 921 species profiles

barb
In zoology, used to refer to a small spine projecting from a larger one; alternative name for spinule and, sometimes, barbel. Also used to refer to cyprinid fishes of the genera Barbus, Puntius, Systomus and related species.
character
In ichthyology, any characteristic or its attributes used for recognising, describing, defining, or differentiating species, genera or higher taxa. Also used in phylogenetic analyses whereby ancestral (primitive) characters are termed plesiomorphic and derived (novel) characters apomorphic.
family
Taxonomic rank below order and above genus. Contains one or more genera.
postoral pouch
A transverse, hollow, pouch-like structure opening anteriorly and located on the ventral surface, immediately posterior to the mouth, in some members of certain balitorid genera, e.g., Gastromyzon, Neogastromyzon.
processus dentiformis
Tooth-like projection in the middle of the upper jaw in certain loach genera which may fit into a notch in the lower jaw. Also referred to as dentiform process.
sublacrymal groove
A fold or groove located between the lacrymal bone and rostral cap in certain fish genera.