Term
|
Definition
| superior, terminal, sub-terminal, inferior |
|
|
Term
|
Definition
| typically on mandible, premaxilla and maxilla |
|
|
Term
|
Definition
| bridge of skin binding the lips to the snout or chin in non-protrusible jawed fishes |
|
|
Term
|
Definition
allows them to move through the water extremely fast
ex: tunas and mackerels (Scombridae) |
|
|
Term
|
Definition
rover predators which depend on an ability to strike quickly
ex pikes, gar |
|
|
Term
|
Definition
hide in very narrow openings, also helps with resist to force of current
ex: american eel |
|
|
Term
|
Definition
highly versatile and is probably the most common fish shape
ex: sunfishes, snappers, porgies, flounders |
|
|
Term
|
Definition
allows the fish to rest on the bottom and hide either using camouflage or by covering itself with a layer of sand
ex: skates, rays (Rajidae), angel shark, toadfishes |
|
|
Term
|
Definition
thread shaped
ex: snipe eels |
|
|
Term
|
Definition
good for hiding in cracks and crevices, don't move fast
ex: gunnel, |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
function:
location: abdominal, subabdominal, jugular, mental |
|
|
Term
|
Definition
|
|
Term
|
Definition
| dorsal, anal, adipose, caudal |
|
|
Term
|
Definition
function: stability
location: along the back, typically one or two, variable, with or with out rays |
|
|
Term
|
Definition
function:
location: behind the anus, ventral side |
|
|
Term
|
Definition
function: useless found only in a few orders
location: between dorsal and caudal peduncle |
|
|
Term
|
Definition
function:
location: caudal end of body behind anal fin (tail fin) |
|
|
Term
|
Definition
| the base of the fin or tail where the body and fin attcah |
|
|
Term
|
Definition
| anguilliform, compressiform, depressiform, fusiform, filiform, sagittaform, globiform, taeniform |
|
|
Term
|
Definition
| large hook shape on lower jaw of spawning male trout |
|
|
Term
|
Definition
|
|
Term
|
Definition
| pimple like growths on the head pectorals and opercula of some spawning male fishes |
|
|
Term
|
Definition
| whisker like organ near the mouth houses taste buds and are used to search for food in murky water |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| cartilaginous elements in elasmobranch fins |
|
|
Term
|
Definition
| rays (double, segmented elements) sometimes modified to spines (ossified, single) |
|
|
Term
|
Definition
| placoid, ganoid, cycloid, ctenoid, schutes |
|
|
Term
|
Definition
dermal denticals "skin teeth"
do not increase in size as the fish grows, instead new scales grow
species: sharks and rays |
|
|
Term
|
Definition
rhombord shape
peg and socket joint
modified cosmoid scales
species: reed fishes, gars, paddle fishes, bowin |
|
|
Term
|
Definition
entire body undulates laterally flattened body
inefficient |
|
|
Term
|
Definition
swim with back 1/2 of body
tend toward truncate, rounded, or emarginate tails
head yaws with motion of swimming
aspect ratio of tail ~1.5-2
cods, basses, trout, many others |
|
|
Term
|
Definition
swim using posterior 1/3 of body
high aspect ratio
flared, forked lunate tail |
|
|
