A salp or salpa is a barrel-shaped, planktic tunicate. It moves by contracting, thereby pumping water through its gelatinous body, one of the most efficient examples of jet propulsion in the animal kingdom. The salp strains the pumped water through its internal feeding filters, feeding on phytoplankton.
Onchidella is a genus of small, air-breathing sea slugs, shell-less marine pulmonate gastropod molluscs in the family Onchidiidae.
Phenatoma is a genus of predatory sea snails, marine gastropod mollusks in the family Borsoniidae.
Notoacmea is a southern genus of true limpets, marine gastropod molluscs in the subfamily Lottiinae of the family Lottiidae, the true limpets.
Patelloida is a genus of sea snails or true limpets, marine gastropod molluscs in the subfamily Lottiinae of the family Lottiidae, one of the families of true limpets.
Lottiidae is a family of sea snails, specifically true limpets, marine gastropod mollusks in the superfamily Lottioidea and the clade Patellogastropoda.
Hemitoma is a genus of slit limpets, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.
Eunaticina is a genus of predatory sea snails, marine gastropod mollusks in the subfamily Sininae of the family Naticidae, the moon snails.
Solmundella is a genus of hydrozoan in the family Solmundaeginidae. It is monotypic, with the single species Solmundella bitentaculata.
Actinia is a genus of sea anemones in the family Actiniidae. Actinia display a rare form of heteromorphosis in which a cut inflicted on a specimen can develop into a second mouth.
Praya is a genus of marine invertebrates in the order Siphonophorae. They are colonial, but the colonies can superficially resemble jellyfish; although they appear to be a single organism, each specimen is actually a colony of Siphonophora. It contains the following species:
The Abylidae are a family of marine invertebrates in the order Siphonophorae. They are colonial, but the colonies can superficially resemble jellyfish; although they appear to be a single organism, each specimen is actually a colony of Siphonophora.
Forskalia is a genus of siphonophores. It is the only genus in the monotypic family Forskaliidae.
The Diphyidae are a family of siphonophores. These are colonial siphonophores with two nectophores arranged one behind the other. The front one includes a somatocyst, while the hind one does not. The somatocyst often contains an oil droplet for buoyancy control. A nectosac in each nectophore allows the organism to swim efficiently.
The Brazilian flathead is a species of duckbill which is the only species in the genus Percophis, the type genus of the monotypic subfamily Percophinae of the duckbill family Percophidae. It occurs in the south western Atlantic off the South American coast from southern Brazil to central Argentina.
Octophialucium is a genus of Hydrozoan in the family Malagazziidae. The genus contains bioluminescent species.
Abyla is a genus of colonial siphonophore in the subfamily Abylidae and the suborder Calycophorae. The genus contains three species and was established by Quoy and Gaimard in 1827.
Rosacea is a genus in the Prayidae. The genus contains bioluminescent species.
Hippopodius is a genus of cnidarians belonging to the family Hippopodiidae.
