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Two new cryptic and sympatric species of the king crab parasite Briarosaccus (Cirripedia: Rhizocephala) in the North Pacific

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Rhizocephalan barnacles have been reported to parasitize a wide range of king crab species (Lithodidae). So far
all these parasites have been assigned to a single species, Briarosaccus callosus Boschma, 1930, which is assumed
to have a global distribution. Here we investigate Briarosaccus specimens from three different king crab hosts
from the fjord systems of Southeastern Alaska: Lithodes aequispinus Benedict, 1895, Paralithodes camtschaticus
(Tilesius, 1815), and Paralithodes platypus (Brandt, 1850). Using molecular markers and by morphological comparison
we show that Briarosaccus specimens from these three commercial exploited king crabs are in fact morphologically
distinct from B. callosus, and further represent two separate species which we describe. The two new
species, Briarosaccus auratum n. sp. and B. regalis n. sp., are cryptic by morphological means and were identified
as distinct species by the use of genetic markers (COI and 16S). They occur sympatrically, yet no overlap in
king crab hosts occurs, with B. auratum n. sp. only found on L. aequispinus, and B. regalis n. sp. as parasite of
the two Paralithodes hosts.

ADDITIONAL KEYWORDS: COI – cryptic speciation – DNA – Lithodidae – parasites – species delimitation – sympatric occurrence – 16S

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Ketersediaan

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Informasi Detail

Judul Seri

Zoological Journal of the Linnean Society

No. Panggil

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Penerbit

: John Wiley & Sons, Ltd.., 2016

Deskripsi Fisik

Zoological Journal of the Linnean Society, 2016, 176, 3–14. With 5 figures

Bahasa

English

ISBN/ISSN

10.1111/zoj.12304

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

Bilogi

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

Lampiran Berkas

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