In biological classification , a subfamily ( Latin : subfamilia , plural subfamiliae ) is an auxiliary (intermediate) taxonomic rank , next below family but more inclusive than genus . Standard nomenclature rules end botanical subfamily names with "-oideae", and zoological subfamily names with "-inae".
6-619: Harttiini Isbrücker, 1979 Loricariini Isbrücker, 1979 Loricariinae is a subfamily of the family Loricariidae of catfish (order Siluriformes). This subfamily is divided into two tribes and about 30 genera . They are mainly native to freshwater habitats in South America, but there are also several species (in genera Crossoloricaria , Dasyloricaria , Fonchiiichthys , Rineloricaria , Spatuloricaria , Sturisoma and Sturisomatichthys ) in Panama and
12-421: A greater diversity of lip structures and shapes than other loricariids. Loricariines are characterized by a long and depressed caudal peduncle (rectangular cross-section) and by the absence of an adipose fin . They also show dramatic variation in body shape, lip morphology and dentition. The sexual dimorphism is often pronounced and is expressed through the hypertrophy of odontodes on the pectoral fin rays, on
18-469: A more important variation in lips and teeth shape, the frequent presence of postorbital notches and predorsal keels, longer maxillary barbels, and less numerous teeth and branched rays in the caudal fin. Genera list based on Covain and Fisch-Muller (2007), except for Cteniloricaria . Subfamily Detarioideae is an example of a botanical subfamily. Detarioideae is a subdivision of the family Fabaceae (legumes), containing 84 genera. Stevardiinae
24-549: A single ( Fonchiiichthys ) in Costa Rica . Loricariinae was first described in 1831. Later, in 1979, many genera were described and Loricariinae was divided into four subfamilies: Loricariini, Harttiini, Farlowellini, and Acestridiini. Eventually, the genera of Acestridiini was included under Hypoptopomatinae and genera of Farlowellini was reclassified into Hartiini. This subfamily has been found to be monophyletic . The most recent papers conclude that there are 30 or 31 genera;
30-434: The snout margin, and sometimes on the pre dorsal area of mature males. Certain genera also show sexual differences in lip and tooth structures. The Harttiini are characterized by numerous and pedunculated teeth, a caudal fin with more branched rays, the absence of postorbital notches and predorsal keels, a rounded mouth, papillose lips weakly or not fringed, and short maxillary barbels. The Loricariini are characterized by
36-420: The status of Cteniloricaria is dubious; although recognized as a synonym of Harttia by some, this conclusion was reached without diagnosing the type species of Cteniloricaria . As loricariids, loricariinae species are characterized by a depressed body covered by bony plates, a unique pair of maxillary barbels , and modification of the mouth into a suckermouth . Members of the subfamily Loricariinae show
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