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The giant basket star (astrophyton muricatum) is an early Mesozoic invertebrate, often found around British Virgin Islands. During the day, it curls up into a tight ball shape to protect itself from predators. At night, it climbs to an elevated point to feed on plankton by extending its intricately-branched feeding arms in a bowl-like shape. Then, it coils around its prey and the tiny hooks along the length of these arms will prevent its prey from escaping.

Basket Star

The giant basket star (astrophyton muricatum) is an early Mesozoic invertebrate, often found around…

A common form of brittle star, dorsal view.

Brittle Star

A common form of brittle star, dorsal view.

"Flowers often grow out of the cacti in a very unexpected fashion and of very curious forms. We give illustration of a variety, whose flower very much resembles a starfish." -Lupton

The Starfish Cactus

"Flowers often grow out of the cacti in a very unexpected fashion and of very curious forms. We give…

"Common Starfish (Asterias forbesi)."-Whitney, 1902.

Common Starfish

"Common Starfish (Asterias forbesi)."-Whitney, 1902.

Diagram of the nervous system of a starfish. N, nerve ring.

Nervous System of the Starfish

Diagram of the nervous system of a starfish. N, nerve ring.

"Ventral surface of disc of an Ophiuroid (Ophiothrix fragilis). g., Openings of genital pockets or bursae; m., mouth; v., ventral plates of arms; sp., spines of arms; tf., tube-feet--at the right side these are represented as retracted; o., the opening through which they are protruded; p., plates around mouth bearing the so-called teeth; one of these plates is perforated, and functions as the madreporite." -Thomson, 1916

Ophiuroid

"Ventral surface of disc of an Ophiuroid (Ophiothrix fragilis). g., Openings of genital pockets or bursae;…

In the Radiata, the starfish manifests one of the simplest forms of nervous systems. it consists of a central mass, with five arms radiating from it. In the center is the mouth, and beneath it the stomach or gastric cavity, which sends branches to each limb. The nervous system consists of five similar ganglions situated in the central portion at the base of the arms. These ganglions are connected and each sends off nerve-filaments to corresponding limbs.

Diagram of a Radiata

In the Radiata, the starfish manifests one of the simplest forms of nervous systems. it consists of…

The Spiny Sea Star (Echinaster sentus) is an echinoderm in the Asteroidea class of starfish.

Spiny Sea Star

The Spiny Sea Star (Echinaster sentus) is an echinoderm in the Asteroidea class of starfish.

Sea-stars are Echinoderms. The order Ophiuroides is closely related to starfishes. The arms of sea stars however, differ from those of starfishes in not containing any prolongations from the stomach.

Sea-star

Sea-stars are Echinoderms. The order Ophiuroides is closely related to starfishes. The arms of sea stars…

The common starfish is a five rayed star. The central body is called the disk and the arms are the rays.

Starfish

The common starfish is a five rayed star. The central body is called the disk and the arms are the rays.

The common starfish is a five rayed star. The central body is called the disk and the arms are the rays. This is the water tube system of the starfish.

Starfish

The common starfish is a five rayed star. The central body is called the disk and the arms are the rays.…

A class of marine animals, which have a star-like body composed of a central disc extended into five or more rays. They belong to the radiates, a class of animals having a central focus with raylike projections.

Starfish

A class of marine animals, which have a star-like body composed of a central disc extended into five…

This diagram represents the vertical section through an arm and an interradis of a starfish. a, anus; amp., ampulla; c.b., circular blood vessel; c.w., circular water canal; co., caelom; co.e., caelomic epithelium; d.b., dermal branchae; e, position of the eyespot; ect., ectoderm; ent, entoderm; f, ambulacral foot; g, ambulacral foot; g, ambulacral groove; h, hepatic caeca or liver; i, insestine; i.c., intestinal caeca; mes, mesoderm; mo., mouth; m.p., madreporic body; n.r., nerve ring; os., ossicles in mesoderm; r.n., radial nerve band; r.b., radial blood vessel; r.p., reproductive pore; r.w., radial water canal; s.c., stone canal; sp., spines; z, lacunar spaces in the mesoderm.

Starfish

This diagram represents the vertical section through an arm and an interradis of a starfish. a, anus;…

This diagram shows a portion of the water-vascular system of the starfish. a, ampullae; f, ambulacral feet; m, madreporic body; p, polian vesicles; r.c., ring canal, with the upper portion removed at the right of the figure; r.t., radical water tubes; s, stone canal.

Starfish

This diagram shows a portion of the water-vascular system of the starfish. a, ampullae; f, ambulacral…

"Starfish for the class Asteroidea of the phylum Echinodermata."—Finley, 1917

Starfish

"Starfish for the class Asteroidea of the phylum Echinodermata."—Finley, 1917

An echinoderm called a starfish or sea star.

Starfish

An echinoderm called a starfish or sea star.

A Radiate Echinoderm, the starfish, Paleaster Niagarensis.

Starfish

A Radiate Echinoderm, the starfish, Paleaster Niagarensis.

"Starfish. I. Ventral surface; t.f., tube-feet extended; a.g., the ambulacral groove with the tube-feet retracted; m., the mouth. II. Dorsal surface, showing the position of the madrepore (M.); the two adjacent arms form the bivium." -Thomson, 1916

Starfish

"Starfish. I. Ventral surface; t.f., tube-feet extended; a.g., the ambulacral groove with the tube-feet…

A common form of star-fish.

Starfish

A common form of star-fish.

"Diagrammatic cross-section of starfish arm. n., Radial nerve; b.v., radial blood vessel according to Ludwig, septum in pseud-haemal vessel according to others; w.v., radial water vessel; am., ampulla; t.f., tube-foot; p.c., a pyloric caecum cut across; s.p., a calcareous spine; g., a skin-gill; lac., spaces in the wall; go., ova in ovary; a.o., ambulacral ossicle." -Thomson, 1916

Starfish Arm

"Diagrammatic cross-section of starfish arm. n., Radial nerve; b.v., radial blood vessel according to…

Bilingual Counting Card featuring an illustration of one Starfish.

Bilingual Starfish Counting Card 1

Bilingual Counting Card featuring an illustration of one Starfish.

English Counting Card featuring an illustration of one Starfish.

English Starfish Counting Card 1

English Counting Card featuring an illustration of one Starfish.

Spanish Counting Card featuring an illustration of one Starfish.

Spanish Starfish Counting Card 1

Spanish Counting Card featuring an illustration of one Starfish.

Bilingual Counting Card featuring illustrations of ten Starfishes.

Bilingual Starfish Counting Card 10

Bilingual Counting Card featuring illustrations of ten Starfishes.

English Counting Card featuring illustrations of ten Starfishes.

English Starfish Counting Card 10

English Counting Card featuring illustrations of ten Starfishes.

Spanish Counting Card featuring illustrations of ten Starfishes.

Spanish Starfish Counting Card 10

Spanish Counting Card featuring illustrations of ten Starfishes.

Bilingual Counting Card featuring illustrations of two Starfishes.

Bilingual Starfish Counting Card 2

Bilingual Counting Card featuring illustrations of two Starfishes.

English Counting Card featuring illustrations of two Starfishes.

English Starfish Counting Card 2

English Counting Card featuring illustrations of two Starfishes.

Spanish Counting Card featuring illustrations of two Starfishes.

Spanish Starfish Counting Card 2

Spanish Counting Card featuring illustrations of two Starfishes.

Bilingual Counting Card featuring illustrations of three Starfishes.

Bilingual Starfish Counting Card 3

Bilingual Counting Card featuring illustrations of three Starfishes.

English Counting Card featuring illustrations of three Starfishes.

English Starfish Counting Card 3

English Counting Card featuring illustrations of three Starfishes.

Spanish Counting Card featuring illustrations of three Starfishes.

Spanish Starfish Counting Card 3

Spanish Counting Card featuring illustrations of three Starfishes.

Bilingual Counting Card featuring illustrations of four Starfishes.

Bilingual Starfish Counting Card 4

Bilingual Counting Card featuring illustrations of four Starfishes.

English Counting Card featuring illustrations of four Starfishes.

English Starfish Counting Card 4

English Counting Card featuring illustrations of four Starfishes.

Spanish Counting Card featuring illustrations of four Starfishes.

Spanish Starfish Counting Card 4

Spanish Counting Card featuring illustrations of four Starfishes.

Bilingual Counting Card featuring illustrations of five Starfishes.

Bilingual Starfish Counting Card 5

Bilingual Counting Card featuring illustrations of five Starfishes.

English Counting Card featuring illustrations of five Starfishes.

English Starfish Counting Card 5

English Counting Card featuring illustrations of five Starfishes.

Spanish Counting Card featuring illustrations of five Starfishes.

Spanish Starfish Counting Card 5

Spanish Counting Card featuring illustrations of five Starfishes.

Bilingual Counting Card featuring illustrations of six Starfishes.

Bilingual Starfish Counting Card 6

Bilingual Counting Card featuring illustrations of six Starfishes.

English Counting Card featuring illustrations of six Starfishes.

English Starfish Counting Card 6

English Counting Card featuring illustrations of six Starfishes.

Spanish Counting Card featuring illustrations of six Starfishes.

Spanish Starfish Counting Card 6

Spanish Counting Card featuring illustrations of six Starfishes.

Bilingual Counting Card featuring illustrations of seven Starfishes.

Bilingual Starfish Counting Card 7

Bilingual Counting Card featuring illustrations of seven Starfishes.

English Counting Card featuring illustrations of seven Starfishes.

English Starfish Counting Card 7

English Counting Card featuring illustrations of seven Starfishes.

Spanish Counting Card featuring illustrations of seven Starfishes.

Spanish Starfish Counting Card 7

Spanish Counting Card featuring illustrations of seven Starfishes.

Bilingual Counting Card featuring illustrations of eight Starfishes.

Bilingual Starfish Counting Card 8

Bilingual Counting Card featuring illustrations of eight Starfishes.

English Counting Card featuring illustrations of eight Starfishes.

English Starfish Counting Card 8

English Counting Card featuring illustrations of eight Starfishes.

Spanish Counting Card featuring illustrations of eight Starfishes.

Spanish Starfish Counting Card 8

Spanish Counting Card featuring illustrations of eight Starfishes.

Bilingual Counting Card featuring illustrations of nine Starfishes.

Bilingual Starfish Counting Card 9

Bilingual Counting Card featuring illustrations of nine Starfishes.

English Counting Card featuring illustrations of nine Starfishes.

English Starfish Counting Card 9

English Counting Card featuring illustrations of nine Starfishes.

Spanish Counting Card featuring illustrations of nine Starfishes.

Spanish Starfish Counting Card 9

Spanish Counting Card featuring illustrations of nine Starfishes.

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the Atlantic coasts. The body is more or less star shaped, and consists of a central portion, or disk, surrounded by five or more lobes, or arms, radiating from the body and containing prolongations of the viscera. The mouth is situated in the center of the lower surface of the body, and the anus is either absent or on the upper surface. Locomotion is effected by means of peculiar tube-like processes, which are protruded from the under surface of the arms. They possess in a high degree the power of reproducing lost members and abound in all seas. [Pictured]Common Starfish, reproducing rays"—(Charles Leonard-Stuart, 1911)

Common Starfish

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the Atlantic coasts. The body is more or less star shaped, and consists of a central portion, or disk, surrounded by five or more lobes, or arms, radiating from the body and containing prolongations of the viscera. The mouth is situated in the center of the lower surface of the body, and the anus is either absent or on the upper surface. Locomotion is effected by means of peculiar tube-like processes, which are protruded from the under surface of the arms. They possess in a high degree the power of reproducing lost members and abound in all seas. [Pictured]Common Starfish (Asterias rubens)"—(Charles Leonard-Stuart, 1911)

Common Starfish

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…

A diagram of a radiata (the starfish) whose organization is much less complete than that of most other animals. Label: 1, mouth.

Diagram of a Starfish

A diagram of a radiata (the starfish) whose organization is much less complete than that of most other…

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the Atlantic coasts. The body is more or less star shaped, and consists of a central portion, or disk, surrounded by five or more lobes, or arms, radiating from the body and containing prolongations of the viscera. The mouth is situated in the center of the lower surface of the body, and the anus is either absent or on the upper surface. Locomotion is effected by means of peculiar tube-like processes, which are protruded from the under surface of the arms. They possess in a high degree the power of reproducing lost members and abound in all seas. [Pictured]Eyed Cribella (Cribella oculata)"—(Charles Leonard-Stuart, 1911)

Eyed Cribella Starfish

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the Atlantic coasts. The body is more or less star shaped, and consists of a central portion, or disk, surrounded by five or more lobes, or arms, radiating from the body and containing prolongations of the viscera. The mouth is situated in the center of the lower surface of the body, and the anus is either absent or on the upper surface. Locomotion is effected by means of peculiar tube-like processes, which are protruded from the under surface of the arms. They possess in a high degree the power of reproducing lost members and abound in all seas. [Pictured] Lesser Sand-star (Ophiura albida)"—(Charles Leonard-Stuart, 1911)

Lesser Sand-Star Starfish

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the Atlantic coasts. The body is more or less star shaped, and consists of a central portion, or disk, surrounded by five or more lobes, or arms, radiating from the body and containing prolongations of the viscera. The mouth is situated in the center of the lower surface of the body, and the anus is either absent or on the upper surface. Locomotion is effected by means of peculiar tube-like processes, which are protruded from the under surface of the arms. They possess in a high degree the power of reproducing lost members and abound in all seas. [Pictured]Gibbous Starlet (Asterina gibbosa)"—(Charles Leonard-Stuart, 1911)

Lesser Sand-star Starfish

"Starfish is a popular name for any individual of the family Asteridæ, a familiar object on the…