Genus is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
Murex is a genus of medium to large sized predatory tropical sea snails. These are carnivorous marine gastropod molluscs in the family Muricidae, commonly called "murexes" or "rock snails".
A salp or salpa is a barrel-shaped, planktonic tunicate in the family Salpidae. It moves by contracting, thereby pumping water through its gelatinous body; it is 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.
Patiriella is a genus of sea stars of the family Asterinidae. Many species formerly included in this genus have been transferred to other genera. They are commonly known as carpet sea stars.
Cardita is a genus of marine bivalve molluscs in the family Carditidae.
Nardoa is a genus of sea stars in the family Ophidiasteridae.
Goniasteridae constitute the largest family of sea stars, included in the order Valvatida. They are mostly deep-dwelling species, but the family also include several colorful shallow tropical species.
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms.
Melarhaphe neritoides, common name : the small periwinkle, is a species of small sea snail, a marine gastropod mollusc in the family Littorinidae, the winkles or periwinkles.
Gemmula, common name the gem turrids, is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids.
Thesbia is a genus of sea snails, marine gastropod mollusks belonging to the family Raphitomidae.
Dikoleps is a genus of sea snails, marine gastropod mollusks in the family Skeneidae.
Calliotectum is a genus of sea snails, marine gastropod mollusks in the family Volutidae.
Clelandella is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Ondina is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Striarcana is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Calliaster is a genus of starfish in the family Goniasteridae
Gomophia is a genus of sea stars.
Mediaster is a genus of starfish in the family Goniasteridae. It was circumscribed in 1857 by William Stimpson for M. aequalis, the genus's type species. Its junior synonym is the genus Isaster, which was circumscribed in 1894 by Addison Emery Verrill for the species now known as M. bairdi. Verrill himself synonymized the two genus names in 1899.
Neoferdina cumingi, also known as Cuming's sea star, is a species of starfish in the family Goniasteridae. It is native to the tropical Indo-Pacific region.
