• Journal of Species Research
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• v.5 no.3
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• pp.517-529
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• 2016

Two scale worms of the family Polynoidae, Arctonoe vittata (Grube, 1855) and Hyperhalosydna striata (Kingberg, 1856) were found for the first time from Korea by SCUBA diving survey. The two species are free-living organisms or associated commensally with a wide variety of other invertebrates. Specimens of A. vittata were collected from the East Sea and were closely associated with asteroids, holothuroids, gastropods and nudibranchs species. Specimens of H. striata were collected from Jeju-do Island, and of these, one specimen was collected in a tube of eunicid species. The two species can be easily distinguished from their congeners by distinct morphological characteristics as follows: (1) A. vittata has pigmented band near segment eight and two kinds of neurochaetae; (2) H. striata has reddish-brown longitudinal striped elytra. The morphological key characteristics of both species agreed well with their original descriptions and redescriptions. In this study, the descriptions, detailed illustrations and ecological photographs of two species based on Korean materials were provided.

• Journal of Marine Bioscience and Biotechnology
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• v.14 no.1
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• pp.51-60
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• 2022

A green alga specimen was collected from the eastern coast of Korea. This species shared the typical features of genus Ulva and was characterized by irregularly shaped thalli, relatively small and thick thallus, entire undulate margins without serrations, and one or two pyrenoids per cell. In a phylogenetic tree, based on sequences of the nuclear-encoded internal transcribed spacer region, it nests as a sister clade to a few species including Ulva ohnoi, which has a relatively large thallus. This Korean algal specimen differs from the species forming the same subclades, including U. ohnoi, Ulva fasciata, Ulva reticulata, and Ulva gigantean, and has a relatively small (3-8 cm) and thick (60-100 ㎛) thallus. Of these species, U. ohnoi, originally described from Japan, is similar to the Korean alga as it had a thick thallus of 30-90 ㎛, but it has microscopic serrations on the thallus margin, unlike the Korean alga. The genetic distance between the Korean alga species and the aforementioned species was determined to be 1.8%-4.8%, indicating an inter-specific divergence level at the genus Ulva. Herein, Ulva grossa sp. nov. (Ulvales, Chlorophyta) from Korea is described based on the morphological and molecular analyses.

• Korean Journal of Plant Taxonomy
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• v.34 no.2
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• pp.75-85
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• 2004

Here we described and illustrated two new taxa of Allium (Alliaceae) from southern part of Korea. One new species, A koreanum H. J. Choi et B. U. Oh was clearly distinguished from A. splendens of sect. Reticulato-bulbosa by larger and stellately spreading pale pink perianth, apparently exsert filaments, and conical stigma as well as chromosome number. Another new variety, A. thunbergii var. teretifolium H.J. Choi et B.U. Oh was also easily distinguished from its relatives, var. thunbergii and var. deltoides by terete and hollow leaf blade. Keys to the two species of Allium sect. Reticulato-bulbosa and the three varieties of A. thunbergii (sect. Sacculiferum) in Korea were described.

• Korean journal of applied entomology
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• v.59 no.2
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• pp.117-127
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• 2020

We monitored on the hitchhiker insect pests from a total of 112 foreign vessels entering into Korea during 109 days from 1. Jun. to 17. Sep. in 2018. As the results, a total of 336 samples of the hitchhiker insects were collected using simply collecting method by hands, one of interception method and identified as 159 species of 47 families under nine orders on the basis of integrative species identification. Among them, 14 species of nine families under three orders were detected as undistributed species in South Korea. We reported on the 14 undistributed species in South Korea with the data sheets for the risk assessments on invasive or invasive likelihood species. Also, we suggested and used the term 'not-distributed species' for avoiding confusion with 'unrecorded species', 'unreported species', or 'new reported species'.

• Proceedings of the Zoological Society Korea Conference
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• 2000.04a
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• pp.64.2-64
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• 2000

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 1999.10b
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• pp.68.1-68
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• 1999

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 2001.04a
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• pp.56.2-56
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• 2001

Theridiidae ; Argyrodes yunnanensis sp. nov. ; China

• Asian Journal of Turfgrass Science
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• v.10 no.2
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• pp.117-124
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• 1996

One new cellular slime mold, Dicivostelium valenstemmun sp. n. Shim et Chang, is isolated from the fermentation layer of soils in the cool temperate forests of Surak mountain, Korea. This species has the sori and sorophore yellow-pigmented, and sparse or irregular branches. And it is characterized by tall and robust sorocarps, well-form basal disks, mucoroides-type aggregations and large spores. This species has sorophores gradually tapering from bases to tips, simple capi- tate sorophore tips and conical bases. When prostrates on the plates, it has sparsely clavate bases. Spores are considerably large, 6.8~9.9 x 3.4~5.1 $\mu$m(avg. 8.5 x 4.1 $\mu$m), L /W index l.84~2.43(avg. 2.07) without polar granules. Key words: Diccyostelium valeustemmum, Cool temperate forests, Surak mountain.

• Journal of Species Research
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• v.9 no.4
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• pp.489-491
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• 2020

An yponomeutid genus Eumonopyta Moriuti, 1977 is recorded for the first time from Korea, based on the species Eumonopyta unicornis Moriuti, 1977. Eumonopyta is distinguished from Yponomeuta by the lack of the areole in the forewing, the presence of the hindwing veins, Sc and R₁ completely fused, the lack of the spinules on the gnathal processes, and the presence of three spiniform cornuti in the phallus. Eumonopyta unicornis is characterized by the presence of greenish irrotation on the forewings. The Korean records of E. unicornis are based on two male specimens from the islands, Geojedo (Gyeongsangnam-do) and Jejudo (Jeju-do) and one female specimen from the island Dolsando (Jeollanam-do). External appearance and genitalia of E. unicornis are redescribed and illustrated. The occurrence status of E. unicornis in Korea is briefly discussed. With our records from Korea, the distributional range of E. unicornis is expanded from Japan and Taiwan.

• Journal of Species Research
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• v.9 no.2
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• pp.170-173
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• 2020

Research on Korean nematocerous flies (Diptera: Nematocera) was started by the National Institute of Biological Resources in 2012. This publication is a continuation of our previous work. During the season of 2019 insects were collected in Odaesan National Park by the researchers from Korea University. Among these samples, two specimens belonging to the family Hesperinidae, which was previously unrecorded from Korea, were noticed. This family is known from countries bordering Korea (East Siberia and Far East of Russia, Hokkaido Island of Japan), thus occurrence of hesperinid flies was expected on the Korean Peninsula. Only one genus Hesperinus Walker, 1848 with eight species belong to this family. They are developing in decaying wood of deciduous trees. Hesperinus rohdendorfi Krivosheina & Mamaev, 1967, which was known from East Siberia and Far East of Russia is recorded from South Korea. Redescription and photographs of the most important taxonomical details are presented.