Filters: Tags: Ichthyology (X)22 results (66ms)
Meristic and morphometric data for "Revision of the jawfish genus Lonchopisthus with description of a new Atlantic species (Teleostei: Opistognathidae)"
Synonymies, diagnoses, descriptions, illustrations, an identification key and meristic frequency tables are provided for all species of Lonchopisthus. Most of the skeletal anatomy of L. higmani is also illustrated. A new jawfish, Lonchopisthus ancistrus n. sp., is described from the Gulf of Mexico and off Honduras based on 21 specimens 41‒89 mm standard length (SL). It differs from other congeners by the following combination of characters: posterior end of maxilla strongly hooked; membrane connecting maxilla and premaxilla and inner membrane covering posterior part of dentary pale; segmented dorsal-fin rays 11–13, with unbranched rays 2–5; longitudinal body scale rows 33‒39; and very long pelvic fins, 39.4‒75.3...
Black carp Mylopharyngodon piceus and grass carp Ctenopharyngodon idella are morphologically similar species imported from eastern Asia to North America as biological control organisms. Preferred identification methods are coloration and pharyngeal tooth form. Grass carp possess serrated teeth and black carp molariform teeth. Examination of pharyngeal teeth causes extensive damage to a specimen, and is labor and time intensive. Coloration can vary within a species and fades with preservation. We present a suite of external characteristics consisting of a truss network canonical variate analysis of distance measurements among landmarks on the lateral view of the head of each fish, the ratio of head length to mouth...
Survey of ichthyofauna of Lake Kanyaboli and other small waterbodies in Kenya: alternative refugia for endangered fish species
Contribution of Food-Object Enzymes to Digestive Processes in Fishes: Effects of Natural and Anthropogenic Factors
Application of science to the management of Atlantic salmon (Salmo salar): integration across scales
New species Pogonophryne fusca (Artedidraconidae, Notothenioidei) with notes on species composition and groups within the genus Pogonophryne Regan
Fish population in two West-African coastal rivers facing different agricultural and hydroelectric schemes
Spatial and temporal co-structure analyses between ichthyofauna and environment: an example in the tropics.