Information AboutLamontichthys |
| CATEGORIES ABOUT LAMONTICHTHYS | |
| loricariidae | |
| fish of south america | |
| fauna of the amazon | |
| fauna of venezuela | |
| fauna of ecuador | |
''Lamontichthys'' is a Genus of Catfish es ( Order Siluriformes) of the Family Loricariidae . It includes four Species , '''''L. filamentosus''''', '''''L. llanero''''', '''''L. maracaibero''''', and '''''L. stibaros'''''.1 TAXONOMY The Phylogenetic position of ''Lamontichthys'' remains uncertain. It has been considered to be Sister to '' Harttia '', whereas ''Lamontichthys'' shows much more similarities with '' Pterosturisoma Microps '' of the Monotypic genus ''Pterosturisoma'', which only differs from ''Lamontichthys'' by the number of pectoral fin rays. DISTRIBUTION AND HABITAT ''Lamontichthys'' is distributed in the northwestern part of South America in the upper Amazon and Orinoco River drainages, and in the Lake Maracaibo region. Species in this genus occupy the same Ecological Niche as those of ''Harttia''. They mainly live in the mainstream of rivers, on rocky and sandy bottoms.2 ''L. filamentosus'' originates from the western Amazon River basin. ''L. llanero'' is distributed in the Guanare Viejo River of the Orinoco River drainage. ''L. maracaibero'' frequently inhabits the well-oxygenated waters in the middle reaches of rivers of the Lake Maracaibo basin. ''L. stibaros'' is from high altitude habitats of the Bobonaza River basin. DESCRIPTION Sexual Dimorphism in ''Lamontichthys'' includes hypertrophied Odontode s on the Pectoral spines in mature males. In all species of ''Lamontichthys'', there is one pectoral fin spine and seven pectoral fin rays on each fin, as opposed to the rest of Loricariinae species which have one pectoral fin spine and only six pectoral fin rays. ''Lamontichthys'' species grow to about 16.7–24.2 Centimetre s (6.57–9.53 In ) SL . ECOLOGY ''Lamontichthys'' is an open brooder; eggs are laid on an open surface such as rocks, submerged wood or plants, and are generally exposed to the current. Females lay a few large-sized (1.4–1.8 Millimetre s or .056–.071 in in diameter) yellowish eggs during each spawning event. REFERENCES |
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