Peniculus hokutoae
Peniculus hokutoae attached to its host
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Copepoda
Order: Siphonostomatoida
Family: Pennellidae
Genus: Peniculus
Species:
P. hokutoae
Binomial name
Peniculus hokutoae
Ohtsuka, Nishikawa & Boxshall, 2018

Peniculus hokutoae is a species of parasitic pennellid copepod.[1] It was described in 2018 from a single female.[2] The type-host is the myctophid fish Symbolophorus evermanni and the type-locality is off Japan. The Japanese name of this species is hokuto-kozutsu-hijikimushi.[2]

According to Ohtsuka, Nishikawa & Boxshall,[2] this species is the first record of parasitism by the genus Peniculus on a mesopelagic myctophid fish.

The species was distinguished from other congeners by (1) the presence of a conical process anterior to the rostrum; (2) the secondary elongation of the first pedigerous somite; (3) the incorporation of the third and fourth pedigerous somites into the trunk; (4) the unilobate maxillule bearing two unequal apical setae; (5) the lack of any processes on the first segment of the maxilla.[2]

Line drawings of Peniculus hokutoae

References

  1. ↑ Walter TC, Boxshall G, eds. (2021). "Peniculus hokutoae Ohtsuka, Nishikawa & Boxshall, 2018". World of Copepods database. World Register of Marine Species. Retrieved 27 August 2021.
  2. 1 2 3 4 Ohtsuka, Susumu; Nishikawa, Jun & Boxshall, Geoffrey A. (2018). "A new species of Peniculus (Copepoda: Siphonostomatoida) parasitizing mesopelagic myctophid fish: first discovery of colonization of the genus in deep water". Parasite. 25: 58. doi:10.1051/parasite/2018057. PMC 6254144. PMID 30474599. Open access icon
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