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Tsukasa Waki,Emilio Rolán,Ronald. G. Noseworthy,강현실,최광식 한국해양과학기술원 2017 Ocean science journal Vol.52 No.4
A species of the genus Ammonicera Vayssière, 1893 collected from coralline algae communities in Jeju Island, South Korea, is described as a new species, A. aurea, for science. Its morphological characters are described and illustrated by SEM micrographs. This new species can be clearly distinguished from other Ammonicera species from the Pacific Ocean by the presence of a spiral cord and about 25 slightly-elevated axial ribs, resulting in about 25 nodules at intersecting points of the cord and ribs on the last whorl of the teleoconch.
First report of the microgastropod Ammonicera japonica (Omalogyridae Habe, 1972) in Korea
Tsukasa Waki,이희정,박상률,박진순,권혁준,최광식 국립중앙과학관 2016 Journal of Asia-Pacific Biodiversity Vol.9 No.2
The intertidal zone of Jeju Island, Korea, is characterized by well-developed volcanic rocks with high wave action. During low tide, numerous small tidal pools are formed on the rocky intertidal zone, which provide shelter and habitats for benthic organisms. Previous investigation indicated that many species of micromolluscans inhabit the tidal pools; however, only a few studies have reported the ecology and identification of these microshells. In this study, we have identified a microgastropod, Ammonicera japonica Habe, 1972 (Omalogyridae), from a tidal pool on the southern coast of Jeju Island. Morphological identification of the species was based on scanning electron microscopy (SEM) of the protoconch and teleoconch. A. japonica was found to be associated with encrusting coralline algae distributed on the bottom of the tidal pools. This is the first report of A. japonica from Korea, and the specimen was registered at the National Marine Biodiversity Institute of Korea (MABIK MO00157413).
First report of Vexillum zelotypum Reeve 1845 (Costellariidae: Neogastropoda) in Korea
Tsukasa Waki,Ronald G. Noseworthy,최광식 국립중앙과학관 2016 Journal of Asia-Pacific Biodiversity Vol.9 No.1
The costellariid gastropod Vexillum zelotypum Reeve 1845a is reported for the first time on Jeju Island. Four Costellariidae species are now part of the island's mollusk fauna. Comparisons are made with the original description and descriptions in the literature; some taxonomic comments are also made. The addition of new record to the island's fauna may be the result of previous insufficient sampling, global warming, and possible changes in the warm currents flowing northward to Japan and Korea.
Tsukasa Waki 국립중앙과학관 2017 Journal of Asia-Pacific Biodiversity Vol.10 No.2
The author sampled terrestrial mollusks in Yoyogi Park, which is a typical urban park in Tokyo, Japan. In total, 177 individuals were sampled, representing 19 species from 12 families. Thirteen species were native to the area and six were introduced species which probably spread with plants and soil along human trade routes. From the sampled mollusks, immature stages of the trematode family Brachylaimidae and parasitic nematodes Angiostoma sp., Phasmarhabditis sp. and Mermithidae were collected. The three nematodes were reported for the first time among terrestrial mollusks in Japan.
REPORT OF Malleus regula (FORSSKÅL IN NIEBUHR, 1775) (BIVALVIA: MALLEIDAE) IN KOREA
Noseworthy, Ronald G.,Waki, Tsukasa,Nobuhisa, Kajino,Choi, Kwang-Sik The Malacological Society of Korea 2016 The Korean Journal of Malacology Vol.32 No.4
The bivalve Malleus regula ($Forssk{\aa}l$ in Niebuhr, 1775) is reported for the first time from Korea. This is the second species of Malleidae reported from this country. Since the species is quite variable, comparisons were made with the original description and descriptions in the literature; some taxonomic comments were also made. Global warming and possible changes in the northward-flowing Tsushima Current may account for the addition of new mollusk species to the island's fauna.
REPORT OF Malleus regula (FORSSKÅL IN NIEBUHR, 1775) (BIVALVIA: MALLEIDAE) IN KOREA
Ronald. G. Noseworthy,Tsukasa Waki,Kajino Nobuhisa,최광식 한국패류학회 2016 The Korean Journal of Malacology Vol.32 No.4
The bivalve Malleus regula (Forsskål in Niebuhr, 1775) is reported for the first time from Korea. This is the second species of Malleidae reported from this country. Since the species is quite variable, comparisons were made with the original description and descriptions in the literature; some taxonomic comments were also made. Global warming and possible changes in the northward-flowing Tsushima Current may account for the addition of new mollusk species to the island’s fauna.