There are two dorsal fins, the first one spiny and the second soft.

* Compared to a tautog or cunner, its mouth is much larger, also the caudal fin, pectoral fin, and soft portion ( 11 rays ) of dorsal fin as long as spiny portion.

A fin may contain only spiny rays, only soft rays, or a combination of both.

In eastern freshwater cod the spiny dorsal fin is moderate in height and is partially separated by a notch from the high, rounded soft dorsal fin.

The spiny dorsal fin is low, weak and blends into the soft dorsal fin.

Males develop spectacular spawning colours in summer, namely a more metallic-bronze body colour with a red stripe through the caudal ( tail ), anal and spiny and soft dorsal fins.

The red stripe through the anal and spiny and soft dorsal fins are topped with a tiny iridescent blue-white stripe.

There are two dorsal fins ; the first is spiny with 10-12 spines, and the second is longer with 1 spine and 26-29 soft rays.

Silver perch are streamlined laterally compressed fish with a spiny dorsal fin of medium height, angular soft dorsal and anal fins and a forked tail.

The dorsal and anal fins are divided into anterior spiny and posterior soft-rayed portions, which may be partially or completely separated.

The spiny first dorsal fin is normally folded back in a groove, as are its pectoral fins.

The first ( spiny ) dorsal fin and the pelvic fins are normally retracted into body grooves.

For example, both the spiny dogfish and the Port Jackson shark have spines in their dorsal fins which are capable of secreting poison.

The anterior spines are much longer, giving a concave outline to the spiny part of the dorsal fin.

LTD is induced at corticostriatal medium spiny neuron synapses in the dorsal striatum by a high frequency stimulus coupled with postsynaptic depolarization, coactivation of dopamine D1 and D2 receptors and group I mGlu receptors, lack of NMDA receptor activation, and endocannabinoid activation.

This silvery minnow gets its name from the sharp spiny rays in its dorsal fin.

The ruffe also has a large, spiny dorsal fin likely distasteful to its predators.

Mastacembelids have a series of well-separated dorsal spines on their back, hence the name of their family, spiny eels.

The first ( spiny ) dorsal fin is entirely colorless and is normally folded back into a body groove, as are the pelvic fins.

The first ( spiny ) dorsal fin on Atlantic Spanish mackerel and cero has a prominent black patch.

All feature a sloped profile, medium-to-large scales, a spiny dorsal fin and a laterally compressed body.

All feature a sloped profile, medium-to-large scales, a spiny dorsal fin and a laterally compressed body.

Zander are often called pike-perch as they resemble the pike with their elongated body and head, and the perch with their spiny dorsal fin.

The spiny dogfish has dorsal spines, no anal fin, and white spot along its back.

The silvery John dory ( Zenopsis conchifera ) is typical of the Zeidae, with its scute-covered belly and filamentous spiny dorsal fin.

The first ( spiny ) dorsal fin is black at the front.

The first ( spiny ) dorsal on Spanish and Cero mackerel has a prominent black patch.

Saugers obtain two dorsal fins, the first is spiny and the posterior dorsal fin is a soft-rayed fin.

* Ctenoid scales have a toothed outer edge, and are usually found on fish with spiny fin rays, such as bass and crappie.

There is also an anal fin, which is also considered spiny, and a caudal fin.

The spiny anterior fin has 13 to 15 spines.

These can trap enemies, who are defeated if the bubble is then burst by the player's spiny back.

Datura are usually planted annually from the seed produced in the spiny pods, but with care, plants can be overwintered.

Thorn forest, a dense forest of low stature with a high frequency of thorny or spiny species, is found where drought is prolonged, and especially where grazing animals are plentiful.

The western and southern sides, which lie in the rain shadow of the central highlands, are home to dry deciduous forests, spiny forests, and deserts and xeric shrublands.

The primary natural resources are spiny lobster, conch and other shellfish.

The cortical pyramidal neurons projecting to the striatum are located in layers II-VI, but the most dense projections come from layer V. They end mainly on the spines of the spiny neurons.

Metabotropic dopamine receptors are present both on spiny neurons and on cortical axon terminals.

At the base of the claws are three to six spiny " cushions " on which the leg sits in its resting position and on which the animal walks over smooth substrates ; the claws are used mainly to gain a firm foothold on uneven terrain.

They are named for their extensible spiny proboscis, which, in some species, may have a shape like that of a human penis.

In Australia, New Zealand and South Africa, the term crayfish or cray generally refers to a saltwater spiny lobster, of the genus Jasus that is indigenous to much of southern Oceania, while the freshwater species are usually called yabby or, from the indigenous Australian and Māori names for the animal respectively, or by other names specific to each species.

Clawed lobsters are not closely related to spiny lobsters or slipper lobsters, which have no claws ( chelae ), or to squat lobsters.

The primitive spiny turbots include equal numbers of right and left sided individuals, and are generally less asymmetrical than the other families.

The direct and indirect pathways originate from different subsets of striatal medium spiny cells: they are tightly intermingled but express different types of dopamine receptors, as well as showing other neurochemical differences.

The spiny bristles are a self-defense mechanism

Sea urchins or urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum.

The spiny seed pods are a particular nuisance when scattered over an area frequented by people.

The flowers are clustered in tight umbels, with a whorl of spiny basal bracts.

They are not very particular and eat spiny fish like perch and will even take sticklebacks if that is the only available prey.

Their leaves, spiny in some species, are usually deeply divided into elongated lobes at least in the plants ' lower part, becoming entire towards the top.