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First Record of the Velvet Snail, Coriocella jayi (Littorinimorpha: Velutinidae) from Korea
Yucheol Lee,Damin Lee,Jina Park,Joong-Ki Park The Korean Society of Systematic Zoology 2024 Animal Systematics, Evolution and Diversity Vol.40 No.2
The family Velutinidae is found in various intertidal and subtidal habitats worldwide including Arctic and Antarctic seas. They are characterized by possessing a fragile shell that is partially or entirely covered by the mantle. Eight valid species of the genus Coriocella have been reported mostly in the Indo-West Pacific. Here we report Coriocella jayi Wellens, 1996 from Korean waters for the first time and describe details of their external morphology and radula characteristics using scanning electron microscopy, and provide the mtDNA cox1 sequence as a DNA barcode sequence information. This species is distinguished from other congeneric species by having six cylinder-shaped tubercular lobes of their dorsal part of mantle body and mantle color. Phylogenetic tree using the mtDNA cox1 sequence data shows that two Coriocella species (C. jayi and C. nigra) are grouped as their respective sister among Velutinidae species, and these relationships are strongly supported by 100% bootstrap value. Despite the morphological similarities, further investigation will be needed to confirm whether the African and Korean populations can be justified as the same species with a disconnected distribution range, or represent morphologically similar but two distinct species.
Marine Molluscan Fauna of Jindo Island
Yucheol Lee,Yeongjae Choe,Youngheon Shin,Taeho Kim,Jina Park,Joong-Ki Park 한국동물분류학회 2016 Korean Journal of Systematic Zoology Special Issue Vol.- No.9
As a part of the commemorative joint faunal survey for the 30th anniversary of the Korean Society of Systematic Zoology, the molluscan fauna of Jindo Island was investigated based on sample collection from 6 localities from the 6 to the 8 of Jul 2016. A total of 114 molluscan species from 47 families were collected and identified. Among these, 42 species from 11 families are newly reported from Jindo Island and combining the previous records with the present study totals 157 species from 57 families. Distribution of species records indicates that marine biogeography of Jindo Island represent an overlapping zone for marine organisms which dwell in the Yellow sea and the southern sea areas of Korean waters.
Annotated List of the Korean Triphoridae (Gastropoda), with a New Record of Mastonia rubra
Lee, Yucheol,Shin, Youngheon,Park, Jina,Park, Joong-Ki The Korean Society of Systematic Zoology 2018 Animal Systematics, Evolution and Diversity Vol.34 No.3
The family Triphoridae Gray, 1847 is a group of marine microgastropods characterized by sinistral (left-coiled) shells except for the subfamily Metaciinae, which has dextral shell coiling. We report a new record of Mastonia rubra (Hinds, 1843) collected from the intertidal zone from Jeju Island, Korea and revise species list for Korean Triphoridae species. Mastonia rubra is distinguished from Inforis fusiformis(Kosuge, 1961) by the purple color of the first and second whorls of the teleoconch, whereas they are light colored and nearly white corresponding whorls in I. fusiformis. Including this new record, the Korean Triphoridae comprises 20 species from 15 genera.
Marine Molluscan Fauna of Jindo Island
Yucheol Lee,Yeongjae Choe,Youngheon Shin,Taeho Kim,Jina Park,Joong-Ki Park 한국동물분류학회 2016 Animal Systematics, Evolution and Diversity Vol.- No.s9
As a part of the commemorative joint faunal survey for the 30th anniversary of the Korean Society of Systematic Zoology, the molluscan fauna of Jindo Island was investigated based on sample collection from 6 localities from the 6 to the 8 of Jul 2016. A total of 114 molluscan species from 47 families were collected and identified. Among these, 42 species from 11 families are newly reported from Jindo Island and combining the previous records with the present study totals 157 species from 57 families. Distribution of species records indicates that marine biogeography of Jindo Island represent an overlapping zone for marine organisms which dwell in the Yellow sea and the southern sea areas of Korean waters.
A mitochondrial genome phylogeny of Mytilidae (Bivalvia: Mytilida)
Lee, Yucheol,Kwak, Haena,Shin, Jinkyung,Kim, Seung-Chul,Kim, Taeho,Park, Joong-Ki Academic Press 2019 Molecular phylogenetics and evolution Vol.139 No.-
<P><B>Abstract</B></P> <P>The family Mytilidae is a family of bivalve mussels that are distributed worldwide in diverse marine habitats. Within the family, classification systems and phylogenetic relationships among subfamilies remain not yet fully resolved. In this study, we newly determined 9 mitochondrial genome sequences from 7 subfamilies: <I>Bathymodiolus thermophilus</I> (Bathymodiolinae), <I>Modiolus nipponicus</I> (Modiolinae), <I>Lithophaga curta</I> (the first representative of Lithophaginae), <I>Brachidontes mutabilis</I> (Brachidontinae), <I>Mytilisepta virgata</I> (Brachidontinae), <I>Mytilisepta keenae</I> (Brachidontinae), <I>Crenomytilus grayanus</I> (Mytilinae), <I>Gregariella coralliophaga</I> (Crenellinae), and <I>Septifer bilocularis</I> (the first representative of Septiferinae). Phylogenetic trees using maximum likelihood and Bayesian inference methods for 28 mitochondrial genomes (including 19 previously published sequences) showed two major clades with high support values: Clade 1 ((Bathymodiolinae + Modiolinae) + (Lithophaginae + Limnoperninae)) and Clade 2 (((Mytilinae + Crenellinae) + Septiferinae) + Brachidontinae). The position of the genus <I>Lithophaga</I> (representing Lithophaginae) differed from a previously published molecular phylogeny. Divergence time analysis with a molecular clock indicated that lineage splitting among the major subfamilies of Mytilidae (including the habitat transition from marine to freshwater environments by ancestral Limnoperninae) occurred in the Mesozoic period, coinciding with high diversification rates of marine fauna during that time. This is the first mitochondrial genome-based phylogenetic study of the Mytilidae that covers nearly all subfamily members, excluding the subfamily Dacrydiinae.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The phylogenetic relationships among subfamilies of the Mytilidae are uncertain. </LI> <LI> A mitochondrial genome phylogeny was reconstructed for 27 mytilid species. </LI> <LI> The phylogeny shows two major clades that have diverged in the Devonian. </LI> <LI> The splitting time among the major subfamilies occurred in the Mesozoic period. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Annotated List of the Korean Triphoridae (Gastropoda), with a New Record of Mastonia rubra
Yucheol Lee,Youngheon Shin,Jina Park,Joong-Ki Park 한국동물분류학회 2018 Animal Systematics, Evolution and Diversity Vol.34 No.3
The family Triphoridae Gray, 1847 is a group of marine microgastropods characterized by sinistral (left-coiled) shells except for the subfamily Metaciinae, which has dextral shell coiling. We report a new record of Mastonia rubra (Hinds, 1843) collected from the intertidal zone from Jeju Island, Korea and revise species list for Korean Triphoridae species. Mastonia rubra is distinguished from Inforis fusiformis (Kosuge, 1961) by the purple color of the first and second whorls of the teleoconch, whereas they are light colored and nearly white corresponding whorls in I. fusiformis. Including this new record, the Korean Triphoridae comprises 20 species from 15 genera.