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Morphology
Basic Fish Morphology
| Term | Definition |
|---|---|
| Defining Characteristics of Fish | fins gills aquatic lifestyle poikilothermic |
| Types of Scales | cycloid, ctenoid, ganoid |
| Types of Dentition | Maxillary Premaxillary Vomerine Palatine Pterygoid |
| Types of Fins | Dorsal Caudal Pelvic Anal Pectoral |
| Spines VS Soft Fins | Soft Fins : segmentation, usually branching Sometime beginning of soft ray doesn't branch Spines: usually at anterior part of fin, hard, nonsegmented, nonbranching |
| Diversity of Body Shape | Fusiform Compression Depression Compressiform Depressiform Rover- predators Lie-in wait predator surface oriented bottom rover bottom clinger flatfish deep-bodied eel-like fukufirn similar to eels but high compressed sagittiform globiform |
| cycloid scales | |
| ctenoid scales | |
| ganoid scales | |
| Maxillary Teeth | |
| Premaxillary Teeth | |
| Vomerine Teeth | |
| Palatine Teeth | |
| Pterygoid Teeth | |
| Dorsal Fin | |
| Caudal Fin | |
| Pelvic Fin | |
| Anal Fin | |
| Pectoral Fin | |
| Fusiform | elongate and only slightly compressed example- Scombridae (tunas) |
| Compression | flattened on left and right Example: Selene vomer (lookdown) |
| Depression | flattened on top and bottom Example: Gymnura micrura (smooth butterfly ray) |
| Compressiform | Laterally compressed Ex. Centrarchidae (sunfishes) |
| Depressiform | Dorsally compressed Ex. Rajidae (Skates) |
| Rover- predators | Examples: Salmonidae (salmon) Scombridae (tunas and mackerals) |
| Lie-in wait predator | Example: Esocidae (pikes) |
| surface oriented | horizontal profile, upturned mouth Example: Poeciliidae (live bearers) |
| bottom rover | Example: Ariidae (saltwater catfish) |
| bottom clinger | have modified pelvice fins to form suction disk Example: Gobiidae (gobies) |
| flatfish | Compressiform; bc technically laying on their side Example: Order Pleuronectiformes (flat fishes clade) |
| deep-bodied | similar to compressiform- almost the same Example: Carangidae (pompano and jacks) |
| eel-like | Example: Anguillidae (freshwater eels) |
| filiform | Example: Nemichthyidae (snipe eels) |
| Taeniform similar to eels but high compressed | similar to eels but high compressed Example: Pholidae (gunnels) |
| sagittiform | arrowlike, lie and wait Example: Esocidae (pikes) |
| globiform | Example Cyclopteridae (lumpsuckers) |
| Rattails | bulbous head tapering to a point Example: Macrouridae (rattails) |
Created by:
jcaughron
Popular Marine Sci Tech 1 sets