• 제목/요약/키워드: Morphological Evolution

검색결과 393건 처리시간 0.018초

한국산 비늘갯지렁이류의 분류 I. 참비늘갯지렁이 아과 (Taxonomic Study on Polynoid Polychaetes in Korea I. Subfamily harmothoinae)

  • 제종길;이재학;노용태
    • Animal Systematics, Evolution and Diversity
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    • 제1권1_2호
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    • pp.61-78
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    • 1985
  • 1981년부터 1984년까지 우리나라 연안에서 채집된 참비늘갯지렁이류를 조사한 결과 4종의 국내 미기록(Gattyana deludens, Eunoe senta, Harmothoe hirsuta, Lagisca waahli)을 포함하여 7종을 얻었다. 이로써 한국산 참비늘갯지렁이아과는 모두 16속 11종으로 밝혀지며, 그 형태적 특징을 바탕으로 검색표를 작성하고 각 종의 분류학적인 고찰 및 서식처를 조사 보고한다.

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Two New Records of Crangonid Shrimps (Crustacea: Decapoda: Caridea) in Korean Waters

  • Kim, Jung-Nyun;Choi, Jung-Hwa;Choi, Kwang-Ho;Kim, Sung-Tae;Chang, Dae-Soo
    • Animal Systematics, Evolution and Diversity
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    • 제24권3호
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    • pp.265-268
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    • 2008
  • Two crangonid shrimps, Paracrangon abei Kubo, 1937 and Pontocaris sibogae (De Man, 1918), collected from the northeastern and southeastern waters of Jeju Island, are newly recorded into the Korean fauna. The former is the second species and the latter is the only species of each genus recorded in Korea. Morphological and distributional accounts of these two species are briefly discussed.

Two Aquatic Oligochaete Species, Dero dorsalis and Allonais pectinata (Annelida: Clitellata: Naididae), New to Korea

  • Lee, Jeounghee;Jung, Jongwoo
    • Animal Systematics, Evolution and Diversity
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    • 제30권2호
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    • pp.119-123
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    • 2014
  • The genera Dero and Allonais belong to the family Naididae. Most species in the genus Dero have unique morphological characters including a branchial fossa and/or gills at the posterior end of the body. The genus Allonais has no eyes unlike its close relative the genus Nais. Of these genera, one species of Dero, D. obtusa, was recently reported in Korea. However, the genus Allonais has not been recorded in Korea. Here, we report Dero dorsalis Ferroni$\grave{e}$re, 1899 and Allonais pectinata (Stephenson, 1910) with a diagnosis and illustrations.

Echinoderm Fauna of Chuuk, The Federated States of Micronesia

  • Lee, Taekjun;Shin, Sook
    • Animal Systematics, Evolution and Diversity
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    • 제30권2호
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    • pp.108-118
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    • 2014
  • Micronesia is an island nation located north of Papua New Guinea in the Pacific Ocean. A survey was conducted on Chuuk, which is one of the four main islands of Micronesia, from 11-25 Nov 2012. Echinoderms collected at one intertidal area as well as at 16 SCUBA diving points of 10-40 m depths in the subtidal zone were identified based on morphological characteristics. In total, 35 species from 165 individuals were identified: two crinoids, eight asteroids, four ophiuroids, seven echinoids, and 14 holothuroids. Among them, one asteroid, one ophiuroid, one echinoid, and two holothuroids were newly recorded from Micronesia.

Reassessment of the Taxonomic Status of Four Pagurus Species (Crustacea: Decapoda: Paguridae) in Korea Using DNA Barcoding

  • Jung, Jibom;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • 제36권1호
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    • pp.10-14
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    • 2020
  • Pagurus is the most diverse hermit crab genus in Korea. In this study, the cytochrome c oxidase subunit I (COI) and 16S rRNA of 24 individuals from four Korean Pagurus species (i.e., 7 Pagurus brachiomastus, 8 P. proximus, 8 P. simulans, and 1 P. rectidactylus) were sequenced and analyzed. No genetic difference was found between the COI and 16S rRNA sequences of P. brachiomastus and P. simulans, and the COI sequences of P. rectidactylus and P. quinquelineatus (comparative species from NCBI). Considering the morphological and ecological characteristics together, we assume that P. simulans and P. rectidactylus are subspecies of P. brachiomastus and P. quinquelineatus, respectively. This study should facilitate further research on the taxonomic status of these species.

한국산 현대목(극피동물문, 불가사리강)의 2미기록종 (New Records of Two Phanerozonian Asteroids (Echinodermata, Stelleroidea) in Korea)

  • 신숙
    • Animal Systematics, Evolution and Diversity
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    • 제16권1호
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    • pp.23-30
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    • 2000
  • 제주도의 서귀포와 모슬포의 수심 30m 지점에서 채집된 불가사리류를 동정 분류한 결과, 현대목에 속하는 반점검은띠불가사리(Luidia Maculata Muller et Troschel, 1842)와 푸른불가사리(Linckia laevigata Linne. 1758)가 한국 미기록종으로 밝혀져 보고한다. 제주도 해역에 분포하는 불가사리류는 18종이 된다.

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Discovery of Halicyclops continentalis (Cyclopidae, Halicyclopinae) from Estuaries and Salt Marshes on the West Coast of South Korea

  • Cheon, Young-Chang
    • Animal Systematics, Evolution and Diversity
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    • 제28권1호
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    • pp.12-19
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    • 2012
  • A cyclopoid species from several salt marshes and estuaries on the west coast of South Korea were identified as Halicyclops continentalis Ueda and Nagai, 2009, recently described from Ariake Bay at northwestern Kyushu, Japan. Detailed examination on the Korean specimens justifies Ueda and Nagai's proposition that the H. sinensis sensu Tai and Chen, 1979 formerly known from the Chinese coast of the Yellow Sea should be identical to H. continentalis. Furthermore, this report reinforces their assumption on the geographical distribution of H. continentalis, that is, the Ariake Bay population is a continental relict of the East Asia continent. Herein, a redescription of the species is provided on the basis of the Korean specimens, with a comment on the morphological comparison among three populations around the Yellow Sea.

New Record of a Naidid Oligochaete Species, Ripistes parasita (Annelida: Clitellata: Naididae) from Korea

  • Jung, Jong-Woo
    • Animal Systematics, Evolution and Diversity
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    • 제28권2호
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    • pp.137-139
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    • 2012
  • An aquatic oligochaete species, $Ripistes$ $parasita$ (Schmidt, 1847) collected from Ganghwado Island in Korea, is described and illustrated. Specimens inhabiting on aquatic vegetation at the edge of the streams were collected with a plankton hand net. Morphological features of present specimens such as the number of long hair chaetae per bundle and their length in VI-VIII, and shape and size of ventral chaetae are concordant with those of previous reports on this species. The genus $Ripistes$ contains one species, $R.$ $parasite$ which is distributed over, Europe, North America and eastern part of Asia including China and Japan. This is the first record of $R.$ $parasita$ in Korea.

New Record of a Aglaophenian Species (Hydrozoa: Thecatae: Plumulariidae) from Korea

  • Park, Jung-Hee
    • Animal Systematics, Evolution and Diversity
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    • 제28권2호
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    • pp.145-147
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    • 2012
  • The hydroid specimens for this study were collected by SCUBA diving from about 15 m deep at the Isl. Marado, Jeju-do, Korea. Among the identified species $Aglaophenia$ $latecarinata$ Allman, 1877 was shown to be new to the Korean fauna. This species belongs to the family Plumulariidae which is the second large hydroid taxon in Korea. The distinct morphological characteristic of this species is the nine marginal teeth of hydrotheca, one median abcauline and four pairs laterals. Median abcauline tooth is bifid, with a broad keel extending along the front of the hydrotheca from its margin to the mesial inferior nematotheca, from which the species name was originated. Up to date four aglaophenian species of 35 plumularians have been reported from Korea.

First Record of the Mysids, Genus Erythrops (Crustacea: Mysida: Mysidae) from Korea

  • Kim, Mi-Jin;Song, Sung-Joon;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • 제28권2호
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    • pp.97-104
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    • 2012
  • The tribe Erythropini Hansen, 1910 belonging to the subfamily Mysinae Haworth, 1825, is one of the peculiar groups mainly found in the pelagic or deep sea. Of these, the genus $Erythrops$ G.O. Sars, 1869 including two mysids, $Erythrops$ $minuta$ Hansen, 1910 and $Erythrops$ $nana$ W. Tattersall, 1922, is reported for the first time from Korea. The genus is easily distinguished from other genera by the antennal scale with a terminal strong spine, the carpus of third to eighth thoracopods divided into the propodus by an oblique articulation, and the trapezial telson. The morphological descriptions and the illustrations of these species are given with photographs. As a result of this study, 49 species of mysids including these two species are now recorded in the Korean fauna.