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The gars, or garpikes, are members of the Lepisosteiformes (or Semionotiformes), an ancient order of "primitive" ray-finned fish. Fossil gars are found in Europe, South America, and North America, indicating that in times past these fish had a wider distribution than they do today. Gars are considered to be a remnant of a group of rather primitive bony fish that flourished in the Mesozoic, and are most closely related to the bowfin, another archaic fish now found only in North America.

Garpikes Fish

The gars, or garpikes, are members of the Lepisosteiformes (or Semionotiformes), an ancient order of…

The spotted Gar (Lepisosteus oculatus) is a primitive freshwater fish of the family Lepisosteidae, native to North America from the Lake Erie and southern Lake Michigan drainages south through the Mississippi River basin to Gulf Slope drainages, from lower Apalachicola River in Florida to Nueces River in Texas, USA. It has a profusion of dark spots on the body, head and fins. It occurs in quiet, clear pools and backwaters of lowland creeks, small to large rivers, oxbow lakes, swamps and sloughs. It occasionally enters brackish waters. The fish is a voracious predator feeding on various kinds of fishes and crustaceans. They are notable for being one of the few extant fish species with ganoid scales.

Garpikes Fish

The spotted Gar (Lepisosteus oculatus) is a primitive freshwater fish of the family Lepisosteidae, native…

Gromia is a widespread genus of marine and freshwater amoeboids, closely resembling some foraminiferans.

Amoeba

Gromia is a widespread genus of marine and freshwater amoeboids, closely resembling some foraminiferans.

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds, or along the seacoast while a variety of other species are parasitic. The free forms are usually small, barely reaching a length greater than five or seven cetimeters (2 to 3 inches). Some of the parasitic species attain the great length of six to thirteen meters (20 to 40 feet). This is a marine flatworm.

Flatworm

Flatworms are flattened, leaf-like forms living in damp places on land, in freshwater streams of ponds,…

Marine worms, also known as Nereis, a worm with highly developed heads and many bristles arranged along the sides of the body. These are Polychaetes or "many-bristle") worms, Nereis being one and a common form along the seashore. The body presents the same segmented apprerance as the earthworm. The head is provided with numerous sense organs, among which are four eyes and several tentacles or feelers. This figure the marine worm appearance at breeding season.

Marine Worm

Marine worms, also known as Nereis, a worm with highly developed heads and many bristles arranged along…

Marine worms, also known as Nereis, a worm with highly developed heads and many bristles arranged along the sides of the body. These are Polychaetes or "many-bristle") worms, Nereis being one and a common form along the seashore. The body presents the same segmented apprerance as the earthworm. The head is provided with numerous sense organs, among which are four eyes and several tentacles or feelers. A marine worm during normal seasons.

Marine Worm

Marine worms, also known as Nereis, a worm with highly developed heads and many bristles arranged along…

Marine worms, also known as Nereis, a worm with highly developed heads and many bristles arranged along the sides of the body. These are Polychaetes or "many-bristle") worms, Nereis being one and a common form along the seashore. The body presents the same segmented apprerance as the earthworm. The head is provided with numerous sense organs, among which are four eyes and several tentacles or feelers. A head of a marine worm is shown.

Marine Worm

Marine worms, also known as Nereis, a worm with highly developed heads and many bristles arranged along…

Marine worms, also known as Nereis, a worm with highly developed heads and many bristles arranged along the sides of the body. These are Polychaetes or "many-bristle") worms, Nereis being one and a common form along the seashore. The body presents the same segmented apprerance as the earthworm. The head is provided with numerous sense organs, among which are four eyes and several tentacles or feelers. The lateral appendage of a marine worm is shown.

Marine Worm

Marine worms, also known as Nereis, a worm with highly developed heads and many bristles arranged along…

Marine worms (Polynoe bevisetosa), a worm with highly developed heads and many bristles arranged along the sides of the body. These are common form along the seashore. The body presents the same segmented apprerance as the earthworm. The head is provided with numerous sense organs, among which are four eyes and several tentacles or feelers. Shown is a common marine worm with extended proboscis and overlapping plated covering the back.

Marine Worm

Marine worms (Polynoe bevisetosa), a worm with highly developed heads and many bristles arranged along…

Band or Nemetean worms have been discovered in damp soil or in fresh-water streams. These are commonly small and inconspicuous, pigmies when compared with their marine relatives. Many are often found on the seashore under rocks that have been exposed by the retreating tide.

Nemetean

Band or Nemetean worms have been discovered in damp soil or in fresh-water streams. These are commonly…

Band or Nemetean worms have been discovered in damp soil or in fresh-water streams. These are commonly small and inconspicuous, pigmies when compared with their marine relatives. Many are often found on the seashore under rocks that have been exposed by the retreating tide. Shown here is the head, earing numerous eyes and spine-tipped proboscis.

Nemetean

Band or Nemetean worms have been discovered in damp soil or in fresh-water streams. These are commonly…

Many mollusks live upon seaweeds, and the greater number of terrestrial forms are fond of garden vegetables. The food needs to be masticated and the mouth is usually provided with horny jaws, and an additional matricatory apparaus which consists of a kind of tongue with eight to forty thousand minute teeth in our land forms, while in certain marine snails they are beyond computation. With the licking motion of the tongue this rasp tears the food into shreds before it is swallowed. Shown here is a small portion of the radula or tongue-rasp of a snail.

Snail

Many mollusks live upon seaweeds, and the greater number of terrestrial forms are fond of garden vegetables.…

A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacean, and is hence distantly related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in erosive settings. They are sessile suspension feeders, and have two nektonic larval stages. Barnacles are encrusters, attaching themselves permanently to a hard substrate. Shown is a barnacle larva.

Barnacles

A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacean, and…

A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacean, and is hence distantly related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in erosive settings. They are sessile suspension feeders, and have two nektonic larval stages. Barnacles are encrusters, attaching themselves permanently to a hard substrate. Shown is a developed adult barnacle.

Barnacles

A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacean, and…

The marine isopod or sand flea (Gammarus) is in the sand, under rocks, and in the seaweed. Many are parasitic upon fishes. Gammarus is an amphipod crustacean genus in the family Gammaridae.

Marine Isopod

The marine isopod or sand flea (Gammarus) is in the sand, under rocks, and in the seaweed. Many are…

The marine isopod or sand flea (Caprella) is an omnivorous feeder that eats detritus, one-celled plants, small invertebrates. It is preyed upon by shrimp, sea anemones and several fish species. Females of some species of skeleton shrimp apparently kill the males after mating using a poisonous claw.

Marine Isopod

The marine isopod or sand flea (Caprella) is an omnivorous feeder that eats detritus, one-celled plants,…

Flounder have both eyes situated on one side of the head, they are not born this way. Their life involves metamorphosis. During metamorphosis, one eye migrates to the other side of the body so that both eyes are situated on the upward-facing side of its body. After metamorphosis, flounder lie on one side on the ocean floor; either the left or right side might face upward depending on the species. This is the different stages of the flounder. Note the eyes in the young flounder are arranged one on each side of the head.

Metamorphosis of a Flounder

Flounder have both eyes situated on one side of the head, they are not born this way. Their life involves…

Risso's Dolphin is the only species in the Genus Grampus. It is also known as Cuvier's whale or Gray Grampus.

Risso's Dolphin

Risso's Dolphin is the only species in the Genus Grampus. It is also known as Cuvier's whale or Gray…

"Grinnellia Americana. a, structure of the leaf; b, vertical section of a conceptacle, showing the chains of spores." -Whitney, 1911

Marine Red Algae

"Grinnellia Americana. a, structure of the leaf; b, vertical section of a conceptacle, showing the chains…

This sign indicates that a marine recreation area is located nearby.

Marine Recreation Area, Black and White

This sign indicates that a marine recreation area is located nearby.

This sign indicates that a marine recreation area is located nearby.

Marine Recreation Area, Color

This sign indicates that a marine recreation area is located nearby.

This sign indicates that a marine recreation area is located nearby.

Marine Recreation Area, Outline

This sign indicates that a marine recreation area is located nearby.

This sign indicates that a marine recreation area is located nearby.

Marine Recreation Area, Silhouette

This sign indicates that a marine recreation area is located nearby.

This carriage was designed for the class termed the "sociables". The carriage is painted in rich ultra-marine blue color and lined with silk and lace.

Carriage

This carriage was designed for the class termed the "sociables". The carriage is painted in rich ultra-marine…

Grenadiers or rattails (less commonly whiptails) are generally large, brown to black gadiform marine fish of the family Macrouridae. Found at great depths from the Arctic to Antarctic, members of this family are among the most abundant of the deep-sea fishes.

Grenadier

Grenadiers or rattails (less commonly whiptails) are generally large, brown to black gadiform marine…

Mactra stultorum, previously sometimes known as Mactra corallina is a species of edible saltwater clam, a marine bivalve mollusk in the family Mactridae, the trough shells.

Right Valve of a Mactra Stultorum

Mactra stultorum, previously sometimes known as Mactra corallina is a species of edible saltwater clam,…

Madrepore ("mother of pores") is a coral of the genus Madrepora, found often forming reefs or islands in tropical locations. They reproduce in three separate ways as discovered by the Victorian marine zoologist Anna Thynne (1806-1866). The name was formerly applied universally to any stone coral.

Madrepore Coral

Madrepore ("mother of pores") is a coral of the genus Madrepora, found often forming reefs or islands…

Madrepore ("mother of pores") is a coral of the genus Madrepora, found often forming reefs or islands in tropical locations. They reproduce in three separate ways as discovered by the Victorian marine zoologist Anna Thynne (1806-1866). The name was formerly applied universally to any stone coral.

Madrepore Coral

Madrepore ("mother of pores") is a coral of the genus Madrepora, found often forming reefs or islands…

Mantis shrimp or stomatopods are marine crustaceans, the members of the order Stomatopoda. They are neither shrimp nor mantids, but receive their name purely from the physical resemblance to both the terrestrial praying mantis and the shrimp.

Mantis Shrimp

Mantis shrimp or stomatopods are marine crustaceans, the members of the order Stomatopoda. They are…

Marginella is a genus of small sea snails, marine gastropod molluscs in the family Marginellidae, the margin snails. The shells of the species in this genus have spires which range from moderately elevated to flattened. The surface of the shell is glossy and porcellaneous, and it is often but not always colorful.

Marginella

Marginella is a genus of small sea snails, marine gastropod molluscs in the family Marginellidae, the…

The badger hair flowing brush is ideal for bottom paint, varnish and high gloss marine coatings.

Badger Hair flowing

The badger hair flowing brush is ideal for bottom paint, varnish and high gloss marine coatings.

Eolianite or aeolianite is any rock formed by the lithification of sediment deposited by aeolian processes; that is, the wind. In common use, however, the term refers specifically to most common form of eolianite: coastal limestone consisting of carbonate sediment of shallow marine biogenic origin, formed into coastal dunes by the wind, and subsequently lithified. It is also known as kurkar in the Middle East, miliolite in India and Arabia, and gres dunaire in the eastern Mediterranean.

Eolianite

Eolianite or aeolianite is any rock formed by the lithification of sediment deposited by aeolian processes;…

Fire corals are colonial marine organisms that look rather like real coral. However they are technically not corals; they are actually more closely related to jellyfish and other stinging anemones. They are members of the phylum Cnidaria, class Hydrozoa, order Capitata, family Milleporidae.

Fire Coral

Fire corals are colonial marine organisms that look rather like real coral. However they are technically…

A marine velocipede is a form of waterborne transport, primarily for recreational use, powered through the use of pedals. This transport works by utilizing the pedaling motion to rotate a paddle wheel similar to the form of marine propulsion used in the earlier paddle steamers.

Marine Velocipede

A marine velocipede is a form of waterborne transport, primarily for recreational use, powered through…

Lamp trimmers were specialized onboard ships that involved maintaining oil lamps. In the days when light came from burning oil in lamps, a vessel at sea needed crewmen to constantly care for the lamps. This care involved trimming the wick, which drew the oil up from the storage reservoir, so that the flame would be clean and bright. Lamp trimmers also refilled the reservoirs, which held enough oil for several hours of burning, but not enough to start a major fire if the lamp were to be knocked down or damaged somehow. As vessels became larger the number of lamp trimmers increased significantly, because the only lighting below decks came from lamps. The position of lamp trimmer was so entrenched into marine tradition that electricians were called lamp trimmers for years after oil lamps had been completely replaced.

Lamp Trimmer

Lamp trimmers were specialized onboard ships that involved maintaining oil lamps. In the days when light…

A water craft is a vehicle, vessel or craft designed to move across water, including saltwater and freshwater, for pleasure, recreation, physical exercise, commerce, transport and military missions. It is derived from the term craft which was used as term to describe all types of water going vessels.

Marine Vessel

A water craft is a vehicle, vessel or craft designed to move across water, including saltwater and freshwater,…

This design with natural induction used for marine purposes was the popular “Scotch” marine boiler, a scheme for a multi-tube one-pass horizontal boiler made up of two units: a firebox surrounded by water spaces and a boiler barrel consisting of two telescopic rings inside which were mounted 25 copper tubes; the tube bundle occupied much of the water space in the barrel and vastly improved heat transfer.

Steam Boiler Engine

This design with natural induction used for marine purposes was the popular “Scotch” marine boiler,…

Among the early velocipedes there were designs with one, two, three and four wheels. Some two-wheeled designs had pedals mounted on the front wheel, while three- and four-wheeled designs sometimes used treadles and levers to drive the rear wheels.

Marine Velocipede

Among the early velocipedes there were designs with one, two, three and four wheels. Some two-wheeled…

A life buoy, is a life saving buoy designed to be thrown to a person in the water, to provide buoyancy, to prevent drowning.

Life Buoy

A life buoy, is a life saving buoy designed to be thrown to a person in the water, to provide buoyancy,…

Abbe's Marine Nephoscope for observing direction and motion of a cloud using a compass. The compass measures the direction of the cloud moving, while the center metal reflects the sky.

Abbe's Marine Nephoscope Horizontal Mirror Projection

Abbe's Marine Nephoscope for observing direction and motion of a cloud using a compass. The compass…

Abbe's Marine Nephoscope for observing direction and motion of a cloud. The horizontal mirror reflects the sky, matching the cloud's motion.

Abbe's Marine Nephoscope Horizontal Compass Projection

Abbe's Marine Nephoscope for observing direction and motion of a cloud. The horizontal mirror reflects…

The inside view of Abbe's Marine Nephoscope used to measure the cloud's direction and velocity on a boat. The rounded middle part of the nephoscope is the mirror with the compass is along the circumfrance.

Abbe's Marine Nephoscope Inside View

The inside view of Abbe's Marine Nephoscope used to measure the cloud's direction and velocity on a…

"The marine turbine of this type (Curtis turbine) installed in the U.S. Cruiser Salem had seven pressure stages with four velocity steps in the first stage, and three in each of the others. Steam passes from the steam chest through the nozzles, each of which may be closed by a valve operated from the governor. The number open at any one time depends upon the load." —Derr, 1911

Cross Sectional View of U.S.S Salem Steam Engine Showing Curtis Turbines

"The marine turbine of this type (Curtis turbine) installed in the U.S. Cruiser Salem had seven pressure…

"The upper bearing with dowel—pins and key fit into corresponding dowel holes and key—way in the bottom of the shaft, and rotate with it. When the oil is supplied to the bearing, under a high pressure, it fills the central circular space between the blocks and forces them slightly apart. The oil then escapes between the annular edges of these two blocks and is collected into a drain and returned to the original supply." —Derr, 1911

Cross Sectional View of Curtis Turbine Step Bearing

"The upper bearing with dowel—pins and key fit into corresponding dowel holes and key—way…

Major John Pitcairn was one of the more reasonable officers of the British military. He was a Marine stationed in Boston, Massachussetts. He was in command of the advance part during the first shots of the Battles of Lexington and Concord.

Major Pitcairn

Major John Pitcairn was one of the more reasonable officers of the British military. He was a Marine…

A small cetacean that is related to whales and dolphins.

The Porpoise

A small cetacean that is related to whales and dolphins.

The skeleton of a dugong, one of four living species in the order Sirenia.

Skeleton of the Dugong

The skeleton of a dugong, one of four living species in the order Sirenia.

"The seal, adapted principally for water. The extremities are larger than in the porpoise and manatee."—Pettigrew, 1874

The Seal

"The seal, adapted principally for water. The extremities are larger than in the porpoise and manatee."—Pettigrew,…

"In the newt a tail is superadded to the extremities, the tail and the extremities both acting in swimming."—Pettigrew, 1874

Crested Newt

"In the newt a tail is superadded to the extremities, the tail and the extremities both acting in swimming."—Pettigrew,…

A species of bug that have aquatic habits.

Water Bug

A species of bug that have aquatic habits.

Flabellifera are a type of isopod. Their bodies end in a tail fan, made by the last pair of appendages and the telson (end piece). This species is parasitic, sharing the title of 'fish lice' with other certain parasitic copepods.

Cirolana Microphthalmia

Flabellifera are a type of isopod. Their bodies end in a tail fan, made by the last pair of appendages…

Grovia Oviformis is a type of Foraminifera (a class of unicellular animal/protozoa). They are almost always marine in distribution and typically have limy shells.

Grovia Oviformis

Grovia Oviformis is a type of Foraminifera (a class of unicellular animal/protozoa). They are almost…

Grovia Oviformis is a type of Foraminifera (a class of unicellular animal/protozoa). They are almost always marine in distribution and typically have limy shells.

Polystomella Strigillata

Grovia Oviformis is a type of Foraminifera (a class of unicellular animal/protozoa). They are almost…

<i>Grovia oviformis</i> is a type of Foraminifera (a class of unicellular animal/protozoa). They are almost always marine in distribution and typically have limy shells.

Nummulites Cummingii

Grovia oviformis is a type of Foraminifera (a class of unicellular animal/protozoa). They are almost…

Also known as a Solan Goose (Sula bassana), the Gannet is a large marine bird which nests in scattered localities in most parts of the world. Its specific name refers to the fact that it has long been a denizen of Bass Rock -- a famous craggy islet on the coast of England. This bird also nests on Bird Rock in the gulf of St. Lawrence, and other species exist in the tropics. It belongs to the same sub-order as the cormorant, and may be recognized by the fact that, as in the latter, all four toes are united by a web. Its bill is long, strong, and compressed to a point. In adult life, the plumage is white, save for the black primaries and a buff patch on the head or neck; the young are dusky, and do not acquire the white plumage until their sixth year. Their nests contain only one egg.

Gannet

Also known as a Solan Goose (Sula bassana), the Gannet is a large marine bird which nests in scattered…

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument in the horizontal position on board ship, notwithstanding the rolling and pitching of the vessel. The instrument is suspended in the diametral axis of a ring, which is again suspended in the diametral axis of another ring, the two axes being at right angles to one another.

Gimbals

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument…

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument in the horizontal position on board ship, notwithstanding the rolling and pitching of the vessel. The instrument is suspended in the diametral axis of a ring, which is again suspended in the diametral axis of another ring, the two axes being at right angles to one another. This illustration shows a diagram of a gimbals, showing the angle of the ship (A), the perpendicular axes of the rings, and the compass suspended horizontally in the gimbals (B).

Gimbals (Diagram)

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument…

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument in the horizontal position on board ship, notwithstanding the rolling and pitching of the vessel. The instrument is suspended in the diametral axis of a ring, which is again suspended in the diametral axis of another ring, the two axes being at right angles to one another. This illustration shows a gimbal joint.

Gimbals (Joint)

A gimbals is a contrivance designed to keep a marine compass, chronometer, lamp, or other instrument…

A marine representation of Venus, the goddess of love and favorable voyages, revered by Ephesus. The stance of the figure resembles one of Isis spreading her veil for the sail of a ship.

Venus

A marine representation of Venus, the goddess of love and favorable voyages, revered by Ephesus. The…

<i>Sipunculus nudus</i>. A species of unsegmented marine worm, commonly called the peanut worm. "A, One fourth natural size, in longitudinal section. T, tentacles; r,r,r,r, four retractor muscles of the proboscis, detached from the points r1, r1 in the body walls; a, anus; ae, esophagus; i, intestine with j1, j2 its loops; x, y, appendages of rectum; z, fusiform mscle; w, ciliated groove of intestine; q, anal muscles; s, caecal glands of t, caeca, the so-called testes; p, pore at end of body; n, nervous cord, ending in a lobed ganglionic mass near the mouth, with an enlargement, g1, posteriorly; m1, m2, muscles associated with the nervous cord." &mdash;Whitney, 1889

Peanut Worm - Interior Anatomy of Adult

Sipunculus nudus. A species of unsegmented marine worm, commonly called the peanut worm. "A, One fourth…