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"Ægirus puncitilucens (dorsal view)"-Whitney, 1902

Ægirus

"Ægirus puncitilucens (dorsal view)"-Whitney, 1902

"Æolis coronata, dorsal view."-Whitney, 1902

Æolis

"Æolis coronata, dorsal view."-Whitney, 1902

An illustration of a sea cucumber. The sea cucumber (also known as trepang, bêche-de-mer, balate, or ambiguously, sea slug) is an echinoderm of the class Holothuroidea, with an elongated body and leathery skin, which is found on the sea floor worldwide. It is also named because of its cucumber-like shape. The body contains a single, branched gonad. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue.

Holothuria Tubule

An illustration of a sea cucumber. The sea cucumber (also known as trepang, bêche-de-mer, balate,…

An illustration of the larval form of the Holothuria tubulosa, sea cucumber.

Holothuria Tubulosa (Larva)

An illustration of the larval form of the Holothuria tubulosa, sea cucumber.

An illustration of a man holding a sea cucumber. The sea cucumber (also known as trepang and sea slug) is an echinoderm of the class Holothuroidea, with an elongated body and leathery skin, which is found on the sea floor worldwide. It is so named because of its cucumber-like shape. The body contains a single, branched gonad. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue. These can sometimes be enlarged to flattened plates, forming an armor.

Man Holding Sea Cucumber

An illustration of a man holding a sea cucumber. The sea cucumber (also known as trepang and sea slug)…

An illustration of a Oneirophanta Mutabilis, a type of sea cucubmer. The sea cucumber (also known as trepang, bêche-de-mer, balate, or ambiguously, sea slug) is an echinoderm of the class Holothuroidea, with an elongated body and leathery skin, which is found on the sea floor worldwide. It is also named because of its cucumber-like shape. The body contains a single, branched gonad. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue.

Oneirophanta Mutabilis

An illustration of a Oneirophanta Mutabilis, a type of sea cucubmer. The sea cucumber (also known as…

An illustration of a Phyllophorus Urna.

Phyllophorus Urna

An illustration of a Phyllophorus Urna.

An interior view of a sea cucumber. The sea cucumber (also known as trepang, bêche-de-mer, balate, or ambiguously, sea slug) is an echinoderm of the class Holothuroidea, with an elongated body and leathery skin, which is found on the sea floor worldwide. It is also named because of its cucumber-like shape. The body contains a single, branched gonad. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue.

Sea Cucumber

An interior view of a sea cucumber. The sea cucumber (also known as trepang, bêche-de-mer, balate,…

"Sea-lemon (Goniodoris nodosa). GONIODORIDIDAE. A family of nudibranchiate gastropods, typified by the genus Goniodoris, having a sessile or petiolated suctorial pharyngeal bulb." -Whitney, 1911

Sea Lemon

"Sea-lemon (Goniodoris nodosa). GONIODORIDIDAE. A family of nudibranchiate gastropods, typified by the…