A New Species of Parasitic Copepod of the Family Lernaeidae, Lernaeenicus Multilobatus, from a Deep-Sea Angler-Fish
Abstract:A new parasitic copepod of the family Lernaeidae, Lernaeenicus multilobatus, from the side of a deep-sea angler-fish (Gigantactis sp.), is described and figured. It agrees with L. quadrilobatus Yamaguti and Utinomi, 1953, in having bilaterally similar, soft, bulbous attachment processes, nearly all other members of the genus being equipped with bilaterally asymmetrical processes or hard, chitinous, horn-like ones. The number of rami on the thoracic legs differs from the genus description, as does the formation of the third thoracic leg which does not attach directly to the body but to a segmented ring which encircles the third thoracic segment and is attached to it on the dorsal surface. Additional material may require the erection of a new genus for those forms with a 1,2,1,2 thoracic leg ramal count and with the peculiar third thoracic leg formation found in L. multilobatus.
Document Type: Research Article
Publication date: January 1, 1959
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