• Title/Summary/Keyword: antennule

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Two New Species of Siphonostomatoid Copepods (Crustacea) Associated with the Stoloniferan Coral Tubipora musica (Linnaeus) from Madagascar

  • Kim, Il-Hoi
    • Animal cells and systems
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    • v.8 no.3
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    • pp.187-196
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    • 2004
  • Two new species of siphonostomatoid copepods, Asterocheres tubiporae n. sp. and Entomopsyllus stocki n. sp., associated with the stoloniferan coral Tubipora musica (Linnaeus) are described from Madagascar. Asterocheres tubiporae is characterized by the possession of a large posteroventral process on the caudal ramus and the elongated free segment of leg 5. Entomopsyllus stocki is readily distinguished from its congeners by the possession in the female of 15-segmented antennule and three spines plus two setae on the third exopodal segment of leg 4.

First Zoea of Plagusia dentipes (Crustacea: Decapoda: Brachyura: Grapsidae) Hatched in the Laboratory

  • Lee, Hwa-Ja
    • Animal Systematics, Evolution and Diversity
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    • v.23 no.2
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    • pp.205-208
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    • 2007
  • The first zoeal characters of plagusiine crab Plagusia dentipes De Haan, 1835, belonging to the family Grapsidae, is described and illustrated in detail based on laboratory-hatched material from an ovigerous female collected from Bomok, Seogwipo in the Jejudo Island. Morphological comparison is made with previous description of Plagusia dentipes from Japan. The first zoea of Plagusia dentipes can be readily distinguished from those of two species of Plagusia chabrus and Plagusia depressa by having 2 aesthetascs and 3 simple setae on the antennule, and 8 setae on the coxal endite of the maxilla.

Two New Species of Copepods (Crustacea) Associated with the Sponge Phyllospongia foliascens (Pallas) from the Moluccas

  • Kim, Il-Hoi
    • Animal cells and systems
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    • v.9 no.4
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    • pp.229-238
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    • 2005
  • Spongicola tropicanus, a new genus and species of the family Eunicicolidae, and Asterocheres brevisurculus, a new species of the family Asterocheridae, are described as copepods associated with the sponge Phyllospongia foliascens (Pallas) from the Moluccas. Spongicola is the second genus of the family and may be characterized by a two-segmented prosome, the absence of leg 3, and the presence of leg 5. Asterocheres brevisurculus may be charecterized by one-segmented mandibular palp, short oral siphon, and 19-segmented female antennule.

Artotrogus gordoni n. sp. (Copepoda: Siphonostomatoida: Artotrogidae) Assocaited with the Bryozoan Schizosmittina cinctipora (Hincks) from New Zealand

  • Kim, Il-Hoi
    • Animal Systematics, Evolution and Diversity
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    • v.25 no.1
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    • pp.5-9
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    • 2009
  • Artotrogus gordoni n. sp. is described as an associate of the bryzoan Schizosmittina cinctipora (Hincks, 1885) collected from an intertidal shore in New Zealand. The new species is similar to A. sardae McKinnon but distinguishable from it by the different shapes of antennule where the first segment is the longest and urosome where the anal somite is distinctly narrower than the genital double somite and posterolateral processes on the genital double somite which is tapered and much more developed than in A. sardae.

A new Family of Poecilostomatoid Copepods (Polyankyliidae) from a Tide Pool on Mud Flat in Korea

  • Ho, Ju-Shey;Kim, Il-Hoi
    • Animal cells and systems
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    • v.1 no.3
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    • pp.429-434
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    • 1997
  • A new genus with a new species of poecilostomatoid copepod, Polyankylis orientalis, is described based on a pair of specimens collected from a tide pool on muddy shore in Korea. It represents a new family of the lichomolgoid complex with the following distinguishing characters: (1) 6-segmented antennule (resulted from the fusion of the third and fourth segments) with additional aesthetascs in male, (2) hook on mediodistal corner of antennal coxobasis (first segment), (3) proximal and distal scales on the outer margin of mandible present, (4) main axis of mandibular gnathobase short and lacking notches at the base of mandibular lash, and (5) inner margin of mandibular lash with denticulate processes. Additionally, maxillar syncoxa carries a large, pointed process on ventral surface, legs 1-4 do not show sexua1 dimorphism, and leg 4 is uniramous with 1-segmented exopod. A detailed discussion is given of its affinities with the ten existing families of the lichomolgoid complex.

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First Zoea of Sesarmops intermedius (De Haan, 1835) (Crustacea: Decapoda: Brachyura: Sesarmidae)

  • Lee, Hwa Ja
    • Fisheries and Aquatic Sciences
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    • v.18 no.3
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    • pp.321-324
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    • 2015
  • The first zoeal characters of Sesarmops intermedius (De Haan, 1835) [=Sesarma (Sesarma) intermedium], belonging to the family Sesarmidae, are described and illustrated in detail based on laboratory-hatched material from a female collected from Gangjeung, Seogwipo, Jeju Island. Morphological comparison is performed based on previous descriptions of Sesarma (Sesarma) intermedium from Japan and three other species in the Sesarmidae. The first zoea of Sesarmops intermedius can be readily distinguished from those of the three species Chiromantes haematocheir [=Sesarma (Holometopus) haematocheir], Chiromantes dehaani [=Sesarma (Holometopus) dehaani], and Parasesarma pictum [=Sesarma (Parasesarma) pictum] by the presence of two setae on the exopod of the antenna, fine setae on the inner and outer margin of the forked spine of the telson, and three aesthetascs and one simple seta on the antennule.

Redescription of Haloptilus caribbeanensis (Copepoda: Calanoida) from the Pacific, with Remarks on the Morphology of Antennules in the Genus Haloptilus

  • Soh Ho Young;Suh Hae-Lip;Ohtsuka Susumu
    • Fisheries and Aquatic Sciences
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    • v.2 no.2
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    • pp.129-134
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    • 1999
  • Haloptilus caribbeanensis Park, 1970 (Copepoda, Calanoida, Augaptilidae) is redescribed in detail on the basis of an adult female collected from Suruga Bay, Japan. This is the first record of the species from the Indo-Pacific region. Morphology of the Pacific specimen agrees well with that of the Caribbean Sea and Gulf of Mexico specimens, except for the numbers of mandibular teeth. The former has five teeth and the latter six teeth on mandible. The segmentation and segmental aesthetasc numbers of female antennules of H. caribbeanensis are compared with those of five species of Haloptilus (H. angusticeps, H. fons, H. longicomis, H. ornatus and H. spiniceps). These characters show morphological differentiation at the species level. H. caribbeanensis has no aesthetasc on the proximal segments II, IV, and VI of the female antennules.

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Three New Species of Hemicyclops (Copepoda, Cyclopoida, Clausidiidae) from Korea

  • Moon, Seong-Yong;Kim, Il-Hoi
    • Animal Systematics, Evolution and Diversity
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    • v.26 no.3
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    • pp.279-293
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    • 2010
  • Three new species of Hemicyclops, H. parilis, H. nasutus and H. membranatus are described from Korean coasts. Hemicyclops parilis n. sp. is closely similar to H. gomsoensis Ho and Kim, but distinguishable from the latter species by having the different shape of genital double somite and spermatophore. Hemicyclops nasutus n. sp. is distinguishable from congeners by having five setae on the first segment of antennule and the ratio 4.26 : 1 of the length to width of caudal ramus. Hemicyclops membranatus n. sp. is characterized by the possession of the membranous fringe along margins of cephalothorax and a claw on the third antennal segment.

First Larvae of Lebbeus comanthi and Thor amboinensis(Decapoda: Hippolytidae) Hatched in the Laboratory

  • Yang, Hoi Jeong;Okuno, Junji
    • Animal cells and systems
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    • v.8 no.1
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    • pp.19-25
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    • 2004
  • The decapodid stage of Lebbeus comanthi Hayashi and Okuno and the first zoea of Thor amboinensis (De Man) are described based on laboratory-hatched eggs from females collected from Japan. The decapodid stage of L. comanthi is readily distinguished from that of L. groenlandicus by the carapace without anteroventral denticle and tooth behind rostrum, the absence of the antennal spine, the four-segmented outer flagellum of the antennule, the absence of the palp of the mandible, and the telson with posterior margin con caved medially and without dorsolateral spine. The carapace with anteroventral denticle and the third abdominal somite distinctly curved in lateral view distinguish the first zoea of T. amboinensis from that of T. dobkini Chace and T. floridanus Kingsley. Larval characters of the genus Thor are summarized.