* 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.

The dorsal fin will have 11 to 17 spines, often long and separated from each other, and the pectoral fins will be well-developed, with 11 to 25 rays.

The dorsal and the anal fins have soft rays and are long based, while the pectoral and ventral fins are small.

** Certain rays of the pectoral fins may be adapted into finger-like projections, such as in sea robins and flying gurnards.

*** The " horns " of manta rays and their relatives are called cephalic fins ; this is actually a modification of the anterior portion of the pectoral fin.

They are distinguished from the closely related subfamily Gobiinae by the absence of a swimbladder in adults and location of the uppermost rays of the pectoral fins within the fin membrane.

The electric rays are a group of rays, flattened cartilaginous fish with enlarged pectoral fins, comprising the order Torpediniformes.

Electric rays have a rounded pectoral disc with two moderately large rounded-angular ( not pointed or hooked ) dorsal fins ( reduced in some narkids ), and a stout, muscular tail with a well-developed caudal fin.

Their most distinguishing feature is their pectoral fins: they are composed of two distinct sections, the lower of which consists of between 3-7 long, thread-like independent rays.

" Similar species, such as the mullets ( family Mugilidae ) and milkfish ( family Chanidae ) can be easily distinguished from threadfins by their lack of filamentous pectoral rays.

Their pectoral rays are thought to serve as tactile structures, helping to find prey within the sediments.

The pelvic fins are forward of the pectoral fins, usually under the gills, and have one spine with several soft rays.

Although the Flying Gurnard does not fly, it can " walk " on the bottom by alternatively moving its pelvic fins and short pectoral fin rays.

An angel shark is a shark in the genus Squatina, which are unusual in having flattened bodies and broad pectoral fins that give them a strong resemblance to rays.

The pectoral fins are large, with 10 rays.

The single dorsal and ventral fins have spines and soft rays ; the paired pectoral and pelvic fins have soft rays only ; and the caudal fin has soft rays and is truncate and rounded.

The bluegill has three anal spines, ten to 12 anal fin rays, six to 13 dorsal fin spines, 11 to 12 dorsal rays, and 12 to 13 pectoral rays.

The pectoral fins contain 15-18 soft rays each ; the pelvic fins are thoracic and contain one spine and six soft rays ; the caudal fin is forked.

The pelvic fins usually have one spine and up to five soft rays, positioned unusually far forward under the chin or under the belly.

All Cardassian warships seen so far are painted ochre, and have backwards-swept delta winged hulls ( resembling the Cardassian national symbol ); the delta wings resemble fins, giving the Cardassian ships the appearance of predatory rays.

The main features of the fish, the fins, are bony fin rays and, except the caudal fin, have no direct connection with the spine.

The trunk bears one or two pairs of lateral fins incorporating structures superficially similar to the fin rays of fish.

It is now widely agreed that conodonts had large eyes, fins with fin rays, chevron-shaped muscles and a notochord.

scientists classify the conodonts in the phylum Chordata on the basis of their fins with fin rays, chevron-shaped muscles and notochord.

Amblyopsis spelaea has small pelvic fins with up to six rays.

The pike have a very typical hunting behavior ; they are able to remain stationary in the water by moving the last fin rays of the dorsal fins and the breast fins.

The two pelvic fins are overlaid by skin for most of their length and fused to form a single spine, terminated by very short rays, their only external evidence.

The pelvic fins have up to 17 rays and are placed rather far toward the front of the animal, but they can be missing entirely.

Each of the dorsal finlets have bifid ( doubleedged ) tips, and are the only fins with spines, the rest of the fins being composed of soft rays.

Their caudal fins are very small, and except for Guentherus it is merged with the long anal fin ( which has 70 fin rays or more ).

The pelvic fins of juveniles have up to 10 rays, but in adults this is reduced to a single elongated ray at the throat.

Dorsal fins tend to be high, with a rather short base ( 9-13 rays, but in some as few as 3 ); they are placed just behind the head.

The pelvic fins are nearly vestigial, typically consisting of one small spine and a couple of rays.

Unlike many previous, more fish-like transitional fossils, the " fins " of Tiktaalik have basic wrist bones and simple rays reminiscent of fingers.

In bony fish, most fins may have spines or rays.

`` Hang this around your neck or attach it to other parts of your anatomy, and its rays will cure any disease you have '', said the company.

Another exception are the electric rays, which have a thick and flabby body, with soft, loose skin devoid of dermal denticles and thorns.

* Cone tracing, a derivative of the ray-tracing algorithm that replaces rays, which have no thickness, with cones

Although the additives used have made cyanine more stable, it is still the most sensitive of the dyes in UV rays ( showing signs of degradation within a week of direct sunlight exposure ).

The two ends of the trench have ramps or entrances at right angles to the trench, so that gamma rays cannot enter ( they can travel only in straight lines ).

In New Zealand, rays are killer whales ' most frequent prey, and they have also been observed hunting sharks ( particularly makos, threshers and smooth hammerheads ).

Maravi is thought to mean " rays of light " and may have come from the sight of many kilns lighting up the night sky.

In the middle of the dry season around December, a dusty wind from the Sahara Desert called the harmattan enters Nigeria from the northeastern part of the country blocking sun rays partially from shining and also creating haze in the atmosphere, this activities of the wind lowers temperatures considerably saving inhabitants for sometime, from the scorching heat that would have occurred as a result of clearer skies during the dry season.

They do not have fin spines, but instead support the fin with lepidotrichia ( bone fin rays ).

Some media have an index of refraction which varies gradually with position and, thus, light rays curve through the medium rather than travel in straight lines.

With concave lenses, incoming parallel rays diverge after going through the lens, in such a way that they seem to have originated at an upright virtual image one focal length from the lens, on the same side of the lens that the parallel rays are approaching on.

All points of the local sky at that era were brighter than the circle of the sun, due to the high temperature of the universe in that prehistoric era ; and we have seen that most light rays will terminate not in a star but in the relic of the Big Bang.

The principle of the parabolic reflector may have been discovered in the 3rd century BC by the geometer Archimedes, who, according to a legend of debatable veracity, constructed parabolic mirrors to defend Syracuse against the Roman fleet, by concentrating the sun's rays to set fire to the decks of the Roman ships.

Of these, radio waves have the longest wavelengths and gamma rays have the shortest.

Several methods for heating an exhaust fluid using the gamma rays produced by positron annihilation have been proposed.

Sharks and rays typically have five pairs of gill slits that open directly to the outside of the body, though some more primitive sharks have six or seven pairs.

The gill arches of bony fish typically have no septum, so that the gills alone project from the arch, supported by individual gill rays.

* Cycloid scales have a smooth outer edge, and are most common on fish with soft fin rays, such as salmon and carp.