A new parasitic barnacle (Crustacea, Cirripedia, Rhizocephala, Mycetomorpha) from the abyssal zone in the northwestern Pacific

I describe the parasitic barnacle Mycetomorpha abyssalis sp. nov. from the crangonid shrimp Sclerocrangon zenkevitchi collected from 3893–3890 m depth off the eastern coast of Iwate, Japan, northwestern Pacific. This is the first Mycetomorpha rhizocephalan from the abyssal zone and the third species...

Full description

Saved in:
Bibliographic Details
Published inZoosystematics and Evolution Vol. 100; no. 2; pp. 385 - 390
Main Author Kakui, Keiichi
Format Journal Article
LanguageEnglish
Published Sophia Pensoft Publishers 03.04.2024
Subjects
Abyssal zone
Amino acids
Congeners
Cytochrome
Cytochrome-c oxidase
Ethanol
Genes
Habitus
Marmota vancouverensis
Mycetomorpha
New species
Parasites
Phylogenetics
Phylogeny
rRNA 16S
rRNA 18S
rRNA 28S
Taxonomy
Online AccessGet full text

Cover

More Information
Summary:I describe the parasitic barnacle Mycetomorpha abyssalis sp. nov. from the crangonid shrimp Sclerocrangon zenkevitchi collected from 3893–3890 m depth off the eastern coast of Iwate, Japan, northwestern Pacific. This is the first Mycetomorpha rhizocephalan from the abyssal zone and the third species in Mycetomorpha . Mycetomorpha abyssalis sp. nov. differs from its congeners M. vancouverensis and M. albatrossi in (1) triangular shield lacking, (2) stalk one-quarter of length from posterior end of externa, (3) mantle opening clearly anterior to stalk, (4) different host genus, and (5) depth range much deeper. I determined partial sequences for the mitochondrial cytochrome c oxidase subunit I (COI) and 16S rRNA genes and nuclear 18S rRNA and 28S rRNA genes from M. abyssalis sp. nov. for future DNA barcoding and phylogeny. Kimura 2-parameter distances between M. abyssalis sp. nov. and M. vancouverensis were 21.2% (16S), 0.6% (18S), and 1.5% (28S).
ISSN:1435-1935
1860-0743
DOI:10.3897/zse.100.120887