• Animal Systematics, Evolution and Diversity
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• v.19 no.1
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• pp.1-9
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• 2003

Three alpheid shrimps, Alpheus lobidens De Haan, 1850, A. malabaricus (Fabricius, 1775), and A. sudora Banner and Banner, 1966 are reported from southern part of Korea. They represent new records for the Korean marine fauna. Korean Alpheidae consist now of ten species belonging to four genera.

• Animal Systematics, Evolution and Diversity
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• v.25 no.3
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• pp.237-242
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• 2009

The first zoeas of Chinese ditch prawn Palaemon gravieri (Yu, 1930) and carpenter shrimp Palaemon serrifer (Stimpson, 1860) are described and illustrated in detail based on laboratory-hatched material. They are distinguished from those of Palaemon ortmanni (Rathbun, 1902) and Palaemon pacificus (Stimpson, 1860), previously known larvae from Korean waters by the length of the rostrum and endopod of antenna, the shape of the third abdominal somite, and ornamentation of the fifth abdominal somite. Larval characters of the genus Palaemon are revised. A. provisional key to the known first zoeas of Palaemon from Korean waters is given.

• Animal Systematics, Evolution and Diversity
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• v.24 no.1
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• pp.17-24
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• 2008

Three crab species, Macromedaeus orientalis, Eriphia smithi, and Ocypode cordimana, from Jejudo Island are recorded for the first time in Korea. M. orientalis was collected under the rocks by SCUBA diving in 20m and at low tidal mark. However, E. smithi and O. cordimana were collected in crevices of the rock at low tidal mark and in a burrow of sand beach at supra tidal mark, respectively. At present, E. smithi is the only species of the genus represented in Korean waters. Including the new records in this study, the established brachyuran fauna in Korea now comprises 203 species.

• Animal Systematics, Evolution and Diversity
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• v.35 no.4
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• pp.182-185
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• 2019

In this study, cytochrome c oxidase subunit I(COI) sequences of 17 individuals from six Korean diogenid species(i.e., 2 Areopaguristes japonicus, 4 A. nigroapiculus, 3 Paguristes digitalis, 4 P. ortmanni, 3 Diogenes edwardsii, and 1 Ciliopagurus kempfi) were determined and analyzed. The DNA barcoding results of this study were consistent with the morphological identification of these six species. Interspecific variations of COI sequences within six Korean diogenid species exceeded the minimum interspecific variation of diogenid hermit crabs in previous studies. Little intraspecific variation exists except for P. digitalis. This study should facilitate further molecular taxonomy of East Asian diogenids.

• Animal cells and systems
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• v.7 no.1
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• pp.11-14
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• 2003

The first zoeal stage of Pagurus japonicus is described and illustrated. Its morphological characteristics are compared with of other species of the genus Pagurus. The first zoea of P. japonicus was very similar to that of P. similis. The zoeas of the two species could be distinguished from other pagurid zoeas by morphological characteristics of the carapace without posterolateral spine. two setae on the endopod of the antenna, and 3＋3 setae on the endopod of the maxilla. They show affinities more to the species of the family Diogenidae than to the species of the genus Pagurus in respect of zoeal morphology.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.52 no.5
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• pp.519-523
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• 2019

Two pinnotherid crabs, Pinnixa penultipedalis and Sakaina japonica, collected from Yeosu, Jeollanam-do, South Korea, are newly recorded in Korea. These two species are unique representatives of their respective genera in local waters. The family Pinnotheridae currently comprises nine species in Korea. In this article, brief descriptions and illustrations of selected parts of these crabs are provided as evidence for their correct identifications.

• 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.

• Animal Systematics, Evolution and Diversity
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• v.36 no.4
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• pp.400-407
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• 2020

An epialtid spider crab, Naxioides robillardi (Miers, 1882), is known as widely distributed in Indo-West Pacific region include Japanese waters. Four specimens of epialtid crabs were collected from adjacent waters of Jejudo Island and identified as N. robillardi. This species can be grouped into two forms such as N. robillardi form typical and N. robillardi form mammillata according to morphological features of carapace, gastric spine, and chela. Morphological characters of all Korean specimens well agree with the form mammillata in general. In this paper, morphological diagnosis and illustrations of newly collected N. robillardi are provided. DNA barcode sequence of COI region is also determined for the first time.

• Animal Systematics, Evolution and Diversity
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• v.36 no.4
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• pp.391-395
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• 2020

This study reports the pagurid hermit crab Porcellanopagurus japonicus in Korean waters for the first time. This species has a right cheliped larger than the left one, reduced and globular abdomen, and symmetrical uropods. Porcellanopagurus japonicus is similar to P. nihonkaiensis, a previously reported congeneric species in Korea, but also has distinguished morphological and ecological characters. There are currently issues with the Korean scientific name for P. japonicus, we suggest a reasonable Korean scientific name of this organism with its etymology. In addition, this species inhabits bivalve shells, which is not a typical habitat for hermit crabs, and the unique habitats of this and several other Korean hermit crabs are reviewed.

• Animal Systematics, Evolution and Diversity
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• v.36 no.4
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• pp.319-329
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• 2020

The sponge-dwelling shrimp, Anchistioides compressus Paulson, 1875, is recorded from Munseom Islet, Jejudo Island, Korea for the first time. All specimens were collected inside the orange coloured sponges by trimix diving at depth from 36-45 m on the rocky reef slope. Anchistioides compressus is characterized by the shape of the rostrum, the posterolateral teeth of the sixth somite, stylocerite being well developed, the anterior margin of the scaphocerite sharply produced, and the biunguiculate dactyli of the ambulatory pereiopods, as well as the proportions of the fingers of the second pereiopods. An illustrated description of the specimens and colour photo are provided to aid future recognition.