Gonorynchiformes Cypriniformes Characiformes Gymnotiformes Siluriformes Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Subregnum Bilateria Acoelomorpha Orthonectida Rhombozoa Myxozoa Superphylum Deuterostomia Chordata (vertebrates, etc. ... Typical Classes Subphylum Urochordata - Tunicates Ascideiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders See text The Actinopterygii are the ray-finned fish. ... Families Chanidae (milkfish) Gonorynchidae (beaked salmons) Kneriidae (shellears) Phractolaemidae (hingemouths) Gonorynchiformes is an order of ray-finned fish that includes the important food source, the milkfish (Chanos chanos, family Chanidae), and a number of lesser-known types, both marine and freshwater. ... Families Suborder Cobitoidea Balitoridae (hillstream loaches) Catostomidae (suckers) Cobitidae (loaches) Gyrinocheilidae (algae eaters) Suborder Cyprinoidea Cyprinidae (carps and minnows) The Cypriniformes are an order of ray-finned fish, including the minnows and some related families. ... Families Acestrorhynchidae Anostomidae - Headstanders Characidae - Characins and tetras Citharinidae Ctenoluciidae - Pike-characids Curimatidae Erythrinidae - Trahiras Gasteropelecidae - Freshwater hatchetfishes Hemiodontidae Hepsetidae Lebiasinidae The Characiformes are an order of ray-finned fish, comprising the characins and their allies. ... Families Apteronotidae (ghost knifefishes) Eigenmanniidae (obsolete?) Gymnotidae (naked-back knifefishes and electric eels) Hypopomidae Rhamphichthyidae Sternopygidae The gymnotiforms are an order (Gymnotiformes) of knifefishes that have organs adapted to the exploitation of bioelectricity. ... Families Akysidae Amblycipitidae Amphiliidae Ariidae Aspredinidae Astroblepidae Auchenipteridae Bagridae Callichthyidae Cetopsidae Chacidae Clariidae Claroteidae Cranoglanididae Diplomystidae Doradidae Hypophthalmidae Ictaluridae Loricariidae Malapteruridae Mochokidae Nematogenyidae Pangasiidae Parakysidae Pimelodidae Plotosidae Schilbeidae Scoloplacidae Siluridae Sisoridae Trichomycteridae Catfish (order Siluriformes) are a diverse group of fish. ...
Ostariophysi is a superorder of fish. Members of this superorder are called ostariophysans. Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ...
All fish known to have alarm substance were of the order Ostariophysi (Pfeiffer 1963) until Smith (1979) demonstrated a similar system in two species of darters, Etheostoma exile and E. nigrum (Perciformes: Percidae).
The Ostariophysan and Percid Alarm Pheromone Systems In the Ostariophysi, specialized club cells (alarm substance cells, or ASCs) on the epidermis outside of the protection of scales were identified by Pfeiffer (1960).
Thus, while an alarm system is not present only in schooling Ostariophysi, the reaction to alarm pheromone can change throughout the life of an individual, and among species, depending on the life history of the species.
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