• 제목/요약/키워드: Morphological taxonomy

검색결과 617건 처리시간 0.021초

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
    • /
    • 제28권1호
    • /
    • pp.12-19
    • /
    • 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 Aglaophenian Species (Hydrozoa: Thecatae: Plumulariidae) from Korea

  • Park, Jung-Hee
    • Animal Systematics, Evolution and Diversity
    • /
    • 제28권2호
    • /
    • pp.145-147
    • /
    • 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
    • /
    • 제28권2호
    • /
    • pp.97-104
    • /
    • 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.

A Newly Recorded Sea Star of the Genus Marginaster (Asteroidea: Valvatida: Poraniidae) from the Korea Strait, Korea

  • Lee, Taekjun;Bae, Sungjun;Kim, Dae-Jin;Shin, Sook
    • Animal Systematics, Evolution and Diversity
    • /
    • 제33권4호
    • /
    • pp.274-277
    • /
    • 2017
  • A sea star was collected from the Korea Strait in the waters adjacent to eastern Jeju Island, Korea ($33^{\circ}39^{\prime}86^{{\prime}{\prime}}N$, $127^{\circ}33^{\prime}12^{{\prime}{\prime}}E$) at a depth of 92 m on November 5, 2016. This specimen was identified as Marginaster paucispinus Fisher, 1913, from the family Poraniidae of the order Valvatida, based on morphological characteristics. The genus Marginaster Perrier, 1881 and M. paucispinus, which were first reported in the South China Sea, are new to the Korean fauna. Partial sequences of mitochondrial COI and 16S ribosomal RNA of M. paucispinus were have been determined for the first time and were deposited in GenBank. They are the first molecular records for the genus Marginaster.

A New Record of Siriella trispina (Crustacea, Mysida, Mysidae) from the Southern Coast of Korea

  • Lee, Hyemin;Kim, Mijin;Song, Sung Joon;Kim, Won
    • Animal Systematics, Evolution and Diversity
    • /
    • 제33권4호
    • /
    • pp.267-273
    • /
    • 2017
  • The opossum shrimp, Siriella Dana, 1850 belongs to the family Mysidae Haworth, 1825. It is the genus of an enormous number of species with frequent morphological variations comprising 84 valid species to date. Among the species, Siriella trispina Ii, 1964 has been recorded from the Yellow Sea and the East China Sea is reported from Korean water for the first time. Siriella trispina is characterized by its exceedingly elongated 5th pair of thoracopods, the spines on the inner ventral margin of the uropodal endopod armed with secondary spinules, and 4-5 pairs of spines on the base of the telson. In the present study, we describe Korean specimens of the species in detail with photographs and illustrations. Siriella trispina is the 8th Siriella species found in Korean fauna.

Copidognathus daguilarensis (Acari: Halacaridae), a New Record of the Copidognathus gibbus Group from Korea

  • Lee, Jimin;Shin, Jong Hak;Chang, Cheon Young
    • Animal Systematics, Evolution and Diversity
    • /
    • 제36권2호
    • /
    • pp.167-174
    • /
    • 2020
  • A halacarid species of the genus Copidognathus is newly reported from Korea: C. daguilarensis Bartsch, 1997, which was described from Hong Kong. It is redescribed herein with detailed illustrations. Korean specimens coincide well with the original description, however, they showed two minor morphological discrepancies from it: quite shorter second palpal segment than the fourth and a modified dorsal seta on the second palpal segment. Korean specimens were rather smaller than the type specimens from Hong Kong, however, they did not show significant differences in the length to width ratios of important body parts. The number of perigenital setae was more variable in the Korean males, ranged 24-29 setae, versus 25-26 in Hong Kong's. Copidognathus daguilarensis is reported for the first time outside the type locality, and joins as the second member of the gibbus group in the northwest Pacific.

A New Genus, Parkiana Cho, gen. nov. (Lepidoptera: Lecithoceridae) from Madagascar, with Descriptions of Two New Species

  • Cho, Soowon;Koo, Jun-Mo;Agassiz, David J.L.
    • Animal Systematics, Evolution and Diversity
    • /
    • 제36권2호
    • /
    • pp.107-112
    • /
    • 2020
  • A new genus Parkiana Cho, gen. nov., belonging to Torodorinae of Lecithoceridae, is described from Madagascar, with two new species: P. matutinalis Cho & Agassiz, sp. nov. and P. andasibensis Cho & Agassiz, sp. nov. Although superficially similar to Thubdora Park, 2018, some of their morphological characters, such as wing venation, are unique and the species of the genus are grouped apart from Thubdora in a preliminary phylogenetic analysis based on COI barcode sequences. In addition to the specific descriptions, adults and genitalia for the two new species are illustrated.

해오라비난초속(난과)의 미기록종: 애기방울난초(Harbenaria iyoensis) (Habenaria iyoensis (Orchidaceae): First Report for Korea)

  • 이창숙;이남숙
    • 식물분류학회지
    • /
    • 제37권4호
    • /
    • pp.395-400
    • /
    • 2007
  • 일본 남부와 대만에 분포하는 것으로 알려진 난과의 애기방울난초 (Habenaria iyoensis)가 제주도 서귀포시 저지대에서 발견되었다. 이 종은 3 맥을 가진 꽃받침, 짧은 원통형의 거, 로젯형의 근생 잎에 의해 다른 해오라비난초속 식물들과 구별된다. 국명은 방울난초 보다 작으므로 애기방울난초로 신청하였다. 애기방울난초의 형태적 특징을 기재하고, 도해와 생태 사진을 첨부하였다.

Triadenum breviflorum (Hypericaceae): First report in Korea

  • So, Ji Hyeon;Kim, Myoung Jun;Lee, Nam Sook
    • 식물분류학회지
    • /
    • 제41권3호
    • /
    • pp.246-248
    • /
    • 2011
  • Triadenum breviflorum (Wallich ex Dyer) Y. Kimura in Nakai & Honda (Hypericaceae), previously known only in northeast India, China and Taiwan, was found in a few wetlands of Jeju Island in 2008. Additionally, some images online of T. breviflorum suggest that it exists in other places on the Korean peninsula but that it has been misidentified as Triadenum japonicum. This species is distinguished from the latter by white petals, inflorescence from nodes 6-11, linear to narrowly elliptic leaves, and an attenuated base. The local name Huin-kkot-mul-go-chu-na-mul implies a white flower rather than the flesh-pink color of T. japonicum. The morphological characteristics of the species are provided with photographs of the habitat.

Eight Previously Unreported Species of Macrofungi from Korea

  • Lee, Jin Sung;Kim, Changmu;Choi, SunYoung;Lee, Hyang Burm
    • 한국균학회지
    • /
    • 제45권4호
    • /
    • pp.362-369
    • /
    • 2017
  • This study evaluated macrofungal specimens collected from the Gangwon, Jeonnam, and Chungnam provinces of Korea in 2015~2016. All specimens were identified at the species level using a combination of morphological characteristics and rDNA sequence data. Among them, eight macrofungal species, Coprinopsis romagnesiana, Daldinia loculata, Gymnopus biformis, Gymnopus montagnei, Gymnopus sepiiconicus, Hebeloma danicum, Pholiota limonella, and Russula brevipes, are new records for macromycota in Korea.