• Title/Summary/Keyword: One new species

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Pythium subutonaiense, A New Aquatic Oomycete from Southern China Based on Morphological and Molecular Characters

  • Chen, Jia-Jia;Zheng, Xiao-Bo
    • Mycobiology
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    • v.47 no.3
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    • pp.273-279
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    • 2019
  • A new species, Pythium subutonaiense, isolated from aquatic environments (lake) in China is being described based on morphological characters and molecular evidence. The isolates grew at temperatures between $5^{\circ}C$ and $38^{\circ}C$, and the optimum temperature was $30^{\circ}C$, with a radial growth rate of 17.6 mm at $25^{\circ}C$ per day. It is homothallic and characterized by globose to sub-globose shaped and mostly terminal or sometimes catenulate hyphal swellings, filamentous non-inflated sporangia, and smooth oogonia with hypogynous and monoclinous antheridia that contained one plerotic oospore. In phylogenetic analysis, inferred based on the internal transcribed spacer region of the ribosomal RNA gene and mitochondrial cytochrome c oxidase subunit 1 gene, the new species formed a distinct lineage in Pythium clade B. Differences between the new species and phylogenetically related and morphologically similar species are discussed.

Neriene bovista sp. nov., a new sheet-web spider (Araneae: Linyphiidae) from Korea

  • Lee, Sue Yeon;Yoo, Jung Sun;Kim, Seung Tae
    • Journal of Species Research
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    • v.11 no.2
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    • pp.94-97
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    • 2022
  • Linyphiidae Blackwall, 1859 is one of the most diverse and largest families within the order Araneae Clerck, 1757. Of the currently 60 valid species of the genus Neriene Blackwall, 1833 worldwide, 10 species are distributed in Korea. The males of the new sheet-web spider Neriene bovista sp. nov. were recently collected with a sweep net between the shrubs of mixed forests from the hilly valley with well conserved nature in Uljin-gun, Gyeongsangbuk-do (the middle east coast region) during a seasonal survey of the spider fauna in hilly terrains in 2017-2018. The present study describes a new sheet-web spider, Neriene bovista sp. nov. with a diagnosis, detailed description, morphological illustrations, and a distribution map from Korea. The new species has a characteristic mushroom-like tip of the terminal apophysis, the truncated tip of anterior projection, and the bifurcated lateral projection of the lamella compared to the congeners of the genus Neriene Blackwall, 1833.

On the New Species, Myrmica cadusa, from Korea (Hymenoptera: Formicidae)

  • Kim, Byung-jin;Park, Seong-Joon;Kim, Joong-Hyon
    • Animal cells and systems
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    • v.1 no.3
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    • pp.425-427
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    • 1997
  • One new species of the genus Myrmica was found from Mt. Moak in Chonbuk, Korea. It was named as Myrmica cadusa n. sp. on the basis of external shape of the antennal socket, which is jar-shaped. Accordingly Korean Myrmica now includes 13 species in total.

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Report on Unknown Form, hitherto, of the Genus Octopus from Eastern Coast of Korea

  • Son, Min-Ho;Kim, Mi-Hyang
    • The Korean Journal of Malacology
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    • v.25 no.1
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    • pp.1-4
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    • 2009
  • A specimen of the unknown form of Octopus species was collected from Onsan, Kyungsangnam-do, eastern coast of Korea on 20th June 2004 with a bottom trawl. The specimen distinguished from the other Octopus species reported hitherto by its extremely short 2nd pair of arm and hectocotilization of the right 4th arm. It may be described, therefore, as new species, but only one specimen was collected unfortunately. A new name will be deferred, consequently, until more specimens will be available in the future.

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Taxonomy on Marine Sponges from Geojedo Island, Korea (거제도 해산 해면류의 분류학적 연구)

  • Chung Ja Sim;Kyung Jin Lee
    • Animal Systematics, Evolution and Diversity
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    • v.14 no.3
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    • pp.219-228
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    • 1998
  • The sponge specimens were collected from Geojedo Island, Korea During from 1994 to 1998 with fishing nets or by scuba divers. They were identified into 34 species of 25 genera in 15 families, of which the one species, Tedania rhoi is a new speices, and Clathria (Axociella) simae is new to the Korean fauna. This species were redescribed.

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Species Selective Spectroelectrochemistry Employing Derivative Absorbance Signals

  • Zhang, Chaojiong;Park, Su-Moon
    • Bulletin of the Korean Chemical Society
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    • v.10 no.3
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    • pp.302-308
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    • 1989
  • Species selective spectroelectrochemistry (SSSE) is described by relating the derivative absorbance (dA/dt) signals with electrochemical currents for conventional transient electrochemical experiments. Expressions relating the currents with the dA/dt signals were obtained. From these expressions, physical constants such as coefficients and molar absorptivities of electrogenerated species can be determined. By obtaining both derivative absorbance and current signals concurrently and comparing them, one can perform the SSSE experiments. The utility of the SSSE in sorting out electrochemical information is demonstrated.

Marine Algae of Cheju Island -The Leathesiaceae- (제주도산 해조류 -바위두둑과-)

  • 이용필
    • Journal of Plant Biology
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    • v.31 no.4
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    • pp.317-332
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    • 1988
  • Morphotaxonomic study was made on the Leathesiaceae of Cheju Island. One species of Petrospongium, P. rugosum, and three of Leathesia, L. difformis, L. sphaerocephala, and L. verruculiformis, were found in Cheju Island. Myriactula species was not found in the locality. L. verruculiformis was described as a new species of the genus Leathesia. L. verruculiformis was characterized by the less compact cortical layer, clavate assimilating filaments, and plurilocular sporangia born in tufts.

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