"Sea Slug" is a word in ENGLISH

One of the anchor-shaped spicules of certain sponges; also, one of the calcareous spinules of certain Holothurians, as in species …

An order of holothurians in which the internal respiratory organs are wanting; -- called also Apoda or Apodes.

A group of holothurians destitute of suckers. See Apneumona.

A kind of holothurian larva, with soft, blunt appendages. See Illustration in Appendix.

An order of holothurians mostly found in the deep sea. They are remarkable for their bilateral symmetry and curious forms.

A genus of small, slender fishes, remarkable for their habit of living as commensals in other animals. One species inhabits …

A holothurian.

Belonging to the Holothurioidea.

One of the Holothurioidea.

An order of holothurians, including those that have ambulacral suckers, or feet, and an internal gill.

A division of holothurians having an internal gill, or respiratory tree.

Any large holothurian, especially one of those belonging to the genus Pentacta, or Cucumaria, as the common American and European …

Any small holothurian resembling in form a gherkin.

A large American holothurian (Lophothuria Fabricii) having a bright orange convex body covered with finely granulated scales. Its expanded tentacles …

Any large holothurian.

A genus of slender, transparent holothurians which have delicate calcareous anchors attached to the dermal plates. See Illustration in Appendix.

Any one of several species of large holothurians, some of which are dried and extensively used as food in China; …