• Title/Summary/Keyword: Anthessius

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A New Species of Anthessius (Copepoda, Poecilostomatoida , Anthessiidae) from the Pen Shell, Atrina pectinata (Linn) in Korea (한국산 키조개에서 채집된 Anthessius (Copepoda, Poecilostomatoida , 'Anthessidae)의 1 신종)

  • 서해립;최상덕
    • Animal Systematics, Evolution and Diversity
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    • v.7 no.1
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    • pp.45-54
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    • 1991
  • An anthessiid copepod ; Anthessius atrinae n.sp., is described based on the specimens recorved in the mantle cavity of Atrina pectinata (Linn) taken from Korean waters. This is distinguished from congeners by formula II, I, 5 on distal segment of exopod of the fourth leg, three terminal claws on distal segment of the second antenna , and the shape of caudal ramus.

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Three New Species of Anthessius (Copepoda, Cyclopoida, Anthessiidae) Associated with Mollusks

  • Lee, Jimin;Kim, Il-Hoi
    • Animal Systematics, Evolution and Diversity
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    • v.37 no.3
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    • pp.187-204
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    • 2021
  • Three new copepod species of Anthessius are described as associates of mollusks. Anthessius tuberculatus n. sp. associated with the bivalve Asaphis violascens (Forsskal in Niebuhr, 1775) in Kosrae, Micronesia bears a pair of dorsal tubercles on the fifth pedigerous somite. Anthessius rarus n. sp. is associated with the aplysiid gastropod Dolabella auricularia (Lightfoot, 1786) in Bohol, the Philippines and has elongate caudal rami which are about 5.2 times as long as wide. Anthessius cucullatus n. sp. associated with the aplysiid gastropod Aplysia kurodai Baba, 1937 in Korea has a hood-like dorsal expansion on genital double-somite of the female.

Poecilostome Copepods (Crustacea: Cyclopoida) Associated with Marine Invertebrates from Tropical Waters

  • Kim, Il-Hoi
    • Animal Systematics, Evolution and Diversity
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    • no.nspc7
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    • pp.1-90
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    • 2009
  • Twenty-two new species of poecilostome copepods associated with marine invertebrates are described from the West Indies, Madagascar, and Pacific coast of Panama. They are Anthessius nosybensis n. sp. and Discanthessius solitarius n. gen. n. sp. in the Anthessiidae; Cemihyclops tenuis n. sp., Hemicyclops tripartitus n. sp., H. humesi n. sp., H. magnus n. sp., and Leptinogaster minuta n. sp. in the Clausidiidae; Schedomolgus crenulatus n. sp. and S. parvipediger n. sp. in the Anchimolgidae; Kelleria multiovigera n. sp. in the Kelleridae; Lichomolgus angustus n. sp. and L. fusiformis n. sp. in the Lichomolgidae; Pseudanthessius acutus n. sp., P. asper n. sp., and Tubiporicola pediger n. gen. n. sp. in the Pseudanthessiidae; Acanthomolgus tenuispinatus n. sp. and Notoxynus lokobensis n. sp. in the Rhynchomolgidae; Eupolymniphilus occidentalis n. sp. and E. brevicaudatus n. sp. in the Sabellephilidae; Enalcyonium robustum n. sp. and E. grandisetigerum n. sp. in the Lamippidae; and O. binoviger n. sp. in the Myicolidae. Hemicyclops geminus Stock is synonymized with H. columnaris Humes which is now known as a species of amphi-American distribution. Hemicyclops columnaris Humes, Modiolicola trabalis Humes, and Ostrincola breviseti Ho and Kim are redescribed.

Seasonal Variation of Infection by Three Species of Symbiotic Copepods in Clam, Tresus keenae (왕우럭에 공생하는 요각류 3종에 대한 감염률의 계절 변동)

  • Moon, Seong-Yong;Rha, Sung-Ju;Yoon, Ho-Seop;Choi, Sang-Duk
    • Journal of Aquaculture
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    • v.19 no.4
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    • pp.236-241
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    • 2006
  • Seasonal variation of the infection by three species of symbiotic copepods in clam, Tresus keenae was investigated in south coast of Korea. The prevalence and abundance of three symbiotic copepods showed seasonal variation with a peak in winter. Reproduction of the copepods occurs from early autumn to spring as indicated by higher ratio of gravid copepods. The frequency distribution of Lichomolgus inflatus, Pseudomyicola spinosus and Anthessius progectus in their host population could be fitted with negative binominal distribution. Results from the present study suggest that seasonal fluctuation in prevalence, relative density and mean intensity is related to temperature and life history of the symbiotic copepods.