• Animal Systematics, Evolution and Diversity
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• v.32 no.2
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• pp.133-140
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• 2016

The first zoeas of Parapanope euagora and Halimede fragifer hatched in the laboratory from two ovigerous galenid crabs of Pilumnoidea were collected from Jindo Island, Jeolanam-do, southern Korea. Their morphologies are described in P. euagora for the first time in the world and re-described in H. fragifer with the color images of live zoeas. In this study, they show a general morphology of Pilumnoidea by having a long antennal exopod, an endopod of the maxillule with 1, 2+4 setae, an endopod of the maxilla with 3+5 setae, and a fork of the telson with two lateral armatures. However, the first zoea of P. euagora differs from other known zoeas of pilumnoid species including H. fragifer by having a long antennal exopod with a medial seta and spine, not two spines, and a fork of telson with two lateral setae, not a seta and spine. Such characteristics of the antennal exopod and the fork of telson are reported for the first time in the pilumnoid zoeas. A comparison between the first zoeal stage of H. fragifer in this study and that of Terada shows minute differences in the characteristics of the antennule and the fork of telson.

• Animal Systematics, Evolution and Diversity
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• v.18 no.1
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• pp.1-12
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• 2002

Actaea semblatae (Guinot, 1976) has been roared in the laboratory, from hatching to the first young crab stage at $25^{\circ}C$. The two zoeal stages are described and illustrated in detail. The first zoea of A. semblatae in the present study slightly differs from that described by Terada (1987) on the respect of the setal presence on the carapace, the antennule, the coxa of the first maxilliped and the first abdominal somite. Within the family Xanthidae, the zoea of A. semblatae can be clearly distingushed from the other known zoeas by having a seta as an antennal exopod or a vestigial exopod with a sets. A provisional key is provided to aid the identification of the xanthid zoeas in Korea.

• Animal cells and systems
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• v.3 no.2
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• pp.127-131
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• 1999

The first zoeal stage of Pachycheles hertwigi Balss is described and illustrated. Its morphological characteristics are compared with those of other known species of Pachycheles. The first zoeas of P. hertwigi and P. stevensii are very similar, but they can be distinguished from each other by the length of carapace spine and the size of antennal exopod spinules.

• 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.

• Animal Systematics, Evolution and Diversity
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• v.23 no.1
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• pp.9-20
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• 2007

The complete larval development of Chiromantes haematocheir was obtained by laboratory rearing. Five zoeal and one megalopal stages are described and illustrated in detail. Morphological characteristics of the larvae slightly differ from those of Lee (1988), especially in the setal presence of mouthpart appendages. Seven sesarminid zoeas (Parasesarma acis, Parasesarma pictum, Perisesarma bidens, Sesarmops intermedius, Chiromantes dehaani, Chiromantes haematocheir, and Nanosesarma gordoni) can be distinguished from each other in characters of the carapace spines, the antennal exopod and the fork of telson. A provisional key is first provided to aid the identification of seven sesarminid zoeas in Korea.

• Animal Systematics, Evolution and Diversity
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• v.36 no.4
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• pp.304-308
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• 2020

Ovigerous crab of Echinoecus nipponicus of subfamily Eumedoninae in Pilumnidae was collected from Seogwipo, Jejudo and hatched in the laboratory. The first zoeal stage of E. nipponicus is reported for the first time in the world and its digital image of live zoeas is provided. The first zoea of E. nipponicus has yellowish red chromatophores which occurring behind eyes, on dorsal spine and on anterior margin of telson, reddish brown chromatophores on abdominal somites 2-5 ventrally, dorsal, rostral, and lateral spines shorter than carapace length, three aesthetascs and two setae on the antennule, two medial setae on the antennal exopod, lateral processes on the abdominal somites 2, 3, and two lateral spine and one dorsomedial spine on the telson.