Ivanenko V.N.1, Bandera E.2, Conradi M.2 2018. A new deep-sea genus of the family Artotrogidae (Copepoda: Siphonostomatoida) from the Gorda Ridge (North Pacific Ocean) // Invertebrate Zoology. Vol.15. No.3: 249–266 [in English].
1 Department of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Moscow 119992, Russia. E-mail: email@example.com
2 Laboratorio de Biologнa Marina, Departamento de Zoologнa, Facultad de Biologнa. Universidad de Sevilla. Reina Mercedes 6, 41012 – Sevilla, Spain.
ABSTRACT: Adult female and male of Artogordion ridgeus gen. et sp.n. (Copepoda: Siphonostomatoida) of the family Artotrogidae Brady, 1880 are described from the Gorda Ridge of the North Pacific Ocean. The copepods were found at depths of 2656–2701 m on the margin of a hydrothermal vent field among invertebrates colonizing wood blocks deployed for two years. The new genus differs from other genera of Artotrogidae by a number of primitive features and is close to Myzopontius Giesbrecht, 1895, Sestropontius Giesbrecht, 1899 and Neopontius T. Scott, 1898. It is distinguished from them by segmental fusion pattern of the antennule, the armature of the antennary exopod and the maxillule, and the length and armature of the caudal ramus. This is the second artotrogid to be found in deep water after the discovery of Abyssopontius altus Stock, 1985 in the Indian Ocean.
KEY WORDS: Artotrogidae, Siphonostomatoida, Copepoda, North Pacific Ocean, Gorda Ridge, deep sea, hydrothermal vent, taxonomy.