• Title/Summary/Keyword: Two New Subspecies

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Geographic Variation of Morphometric Characters in Five Subspecies of Korean Field Mice, Apodemus peninsufae Thomas (Rodentia, Mammalia), in Eastern Asia (동부 아시아에서 서식하는 흰넓적다리 붉은 쥐, Apodemus peninsulae Thomas(설치목, 포유강), 5아종의 형태적 형질의 지리적 변이)

  • Koh, Hung-Sun;Lee, Woo-Jai
    • The Korean Journal of Zoology
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    • v.37 no.1
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    • pp.33-39
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    • 1994
  • Four external and 27 cranial characters of Korean field mice (Apodemus peninsuluek from nine localities in eastern Asia, representing ave subspecies, were analyzed by multivariate statistical methods. Three forms were recognized: a large-size form from Korea (subspecies peninsulael, southern Manchuria (praeto4, and northern Manchuria (majofi a middle-size form from urestern Siberia (tschergal and southuvestern China (sowerbyi); a small-size form from northeastern China (sowerbyi). It is also revealed that variations among the three forms are clinal rind circular. It is confirmed that Apodemus peninsuloe could be classified into two subspecies (peninsulae and sowerbyl) within the distribution range in the continent of Asia, as noted tv Corbel (1978). However, it is found that subspecies peninsulae includes praetor and moior and that subspecies sowerbyi includes tscherga, indicating that subspecies tscherga is not the synonym of subspecies peninsulae, but that of subspecies sowerbyi.

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New Records of Two Arcuospathidium Subspecies (Ciliophora: Haptoria: Arcuospathidiidae) from Korea

  • Jang, Seok Won;Nam, Seung Won;Shazib, Shahed Uddin Ahmed;Shin, Mann Kyoon
    • Animal Systematics, Evolution and Diversity
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    • v.38 no.4
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    • pp.226-237
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    • 2022
  • Arcuospathidium is a haptorian ciliate genus composed of 18 species, and only one species has been reported in Korea. Here, we identify two unrecorded Arcuospathidium subspecies by morphological observation of both living and protargol-impregnated specimens with the small subunit ribosomal RNA (18S rRNA) gene sequence. These subspecies, Arcuospathidium cultriforme cultriforme (Penard, 1922) Foissner, 1984 and A. cultriforme scalpriforme (Kahl, 1930) Foissner, 2003, were isolated from various terrestrial habitats in July and August 2013, respectivley. Arcuospathidium cultriforme cultriforme is similar to A. cultriforme scalpriforme by a knife-shaped body, a twisted-shaped macronucleus, number of dorsal brushes, position of dorsal brushes, and shape of macronucleus but former mainly differs from the body length to oral bulge length ratio (27-38% vs. 41-53%), extrusome (one types vs. three types), cyst shape (roughly faceted wall vs. smooth surface and thin wall) and number of somatic kinety rows(18-30 vs. 30-44). Additionally, we analyzed the 18S rRNA gene sequences of two A. cultriforme subspecies and compared them with the sequences from GenBank to confirm their identification at the molecular level. As the results of genetic analysis, the 18S rRNA gene sequence of the Korean A. cultriforme cultriforme population is most similar to that of Austrian population. Also, the sequence of the Korean A. cultriforme scalpriforme population is most similar to that of another population with some nucleotide differences.

The Systematic Study on the Freshwater Rotifera of Korea (한국산 담수 윤형동물의 계통분류학적 연구)

  • Kim, Won;Moon, Seung-Yeo;Song, Min-Ok
    • The Korean Journal of Zoology
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    • v.34 no.4
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    • pp.548-556
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    • 1991
  • The rosters collected loom various keshwater habitats, such as rivers, steams, lakes, ponds, and rice paddies at twenty-four different sites in Korea were investigated. Eleven species and/or subspecies in three families of monogonont freshwater rotifers were identified, of which two species, Notholco marina and Lecane (Monostyra) stenroosi stenroosi were new to Korea. A key is presented for the twenty-two Korean species and/or subspecies which have been described by the previous taxonomic reports and the present study.

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Philodina wonkimi n. sp. and Five New Records of Bdelloids from Korea

  • Song, Min Ok;Lee, Chang-Ho
    • Animal Systematics, Evolution and Diversity
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    • v.36 no.4
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    • pp.363-371
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    • 2020
  • A taxonomic study on bdelloid rotifers collected from mosses and/or leaf litter at four different locations in Korea resulted in five new Korean records and a new species, Philodina wonkimi n. sp. Philodina wonkimi n. sp. is easily distinguished from its congeners by the very long antenna which is much longer than the height of the pseudosegment carrying a dorsal antenna in creeping. Among the five new Korean records, two species- and two subspecies-level taxa are new to Asia as well. Adineta rhomboidea Bērzinš, 1950 has been reported from only three European countries including the type locality, and is recorded outside Europe for the first time. Present study is the fourth record for Philodina eurystephana Schulte, 1954. In addition, a partial sequence of mitochondrial cytochrome c oxidase subunit I gene (mtCOX1) for P. wonkimi n. sp. is provided here.

Rotifera from Korea Inland Waters IV. Brachionus and Platyas of Brachionide (Rotifera; Monogononta) (한국 담수산 윤형동물 IV. Brachionidae 의 2 속 Bachionus 와 Platyas (Rotifera : Monogononta))

  • Chung, Chung-Eui;Yoo, Hyung-Bin;Kim, Seok-Yee
    • Animal Systematics, Evolution and Diversity
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    • v.8 no.1
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    • pp.35-56
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    • 1992
  • The systematic studyof freshwater rotifers was conducted on the materials collected from 205 sites in South Korea. As a result, 1 species, 9 subspecies, 2 varieties and 6 forms of two genera. Brachionus and platyas in Family Brachionidae were identified, of Which , 1 subspecies and 4 forms are new to the Korean fauna: Brachionus urceolaris bennini , B. angularis f. bidens , B. quadridentatus, f. rhenanus, B. forficula f. minor, and B. forficula f. angularis. Total 134 speices, 15 subspecies, 9 varieties and 9 forms representing 14 families 40 genera are now recorded from Korea by adding the 1 subspecies and 4 forms newly described in the present paper.

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