Leocratides (Annelida: Hesionidae) from the Pacific Coast of Middle Honshu, Japan, with a description of Leocratides kimuraorum sp. nov.

Naoto Jimi, Masaatsu Tanaka, Hiroshi Kajihara

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A new species of hesionid polychaetes, Leocratides kimuraorum sp. nov., is described based on material collected from the Shima Peninsula and Sagami Bay (middle Honshu, Japan), as well as museum specimens collected from Sagami Bay, Suruga Bay, and Shirahama. Leocratides kimuraorum sp. nov. is the third species in this genus and can be discriminated from the two congeners, L. filamentosus Ehlers, 1908 and L. ehlersi (Horst, 1921), by i) the length of the antennae, which are as long as palps, ii) the presence of pharyngeal terminal papillae, and iii) the absence of a papillose peristomial membrane. On the other hand, L. filamentosus, originally described from offWestern Sumatra, Indonesia, was also collected from Sagami Bay, and represents a new record of this species for Japanese waters. Partial mitochondrial cytochrome c oxidase subunit I gene sequences from the holotype of L. kimuraorum sp. nov. and newly collected specimen of L. filamentosus are provided for reliable species identification in the future.

Original languageEnglish
Pages (from-to)133-141
Number of pages9
JournalSpecies Diversity
Volume22
Issue number2
DOIs
Publication statusPublished - 2017 Dec 1

Keywords

  • COI
  • DNA barcode
  • Hexactinellid sponge
  • JAMBIO
  • Marine invertebrates
  • Phyllodocida
  • Polychaeta
  • Symbiosis
  • TRV Seisui-maru
  • Taxonomy

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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