• Animal cells and systems
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• v.6 no.3
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• pp.201-206
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• 2002

Three halacarid species belonging to the genus Copidognathus are recorded from the shallow subtidal sands at Ko Taenae Islet (sand dune) off Ko Pha-Ngan Island, Thailand: Copidognathus thailandicus n. sp., C. euryalus Bartsch, 1997 and C. orarius Otto, 2001. Copidognathus thailandicus n. sp. comes close with C. cribrosoma (Police, 1909) and C. cribellus Bartsch, 1993 due to dorsal plates completely covered with rosette pores. Dissimilarities among them are discussed. Copidognathus euryalus and C. orarius are recorded hove for the first time from Thailand and away from its type locality. The present paper is also the first contribution on the taxonomy of Halacaridae (Acari) from Thailand.

• Animal cells and systems
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• v.7 no.4
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• pp.283-287
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• 2003

Copidognathus bengalensis n. sp. is described from Visakhapatnam coast, Bay of Bengal, India. The present species is characterized by posterodorsal plate (PD) with four costae made up of po rose panels, subdivided posterior cornea of ocular plate (OC), and two pairs of basirostral setae in female. This species is related to C. pulcher group, but the nature of po rose panels on anterior areolae of anterior dorsal plate (AD) and the setal ornamentation of legs were different between the members of C. pulcher group and the present new species.

• Animal cells and systems
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• v.8 no.3
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• pp.139-143
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• 2004

Two new species of the genus Psammocinia (Dictyoceratida, Irciniidae), P. conulosa n. sp. and P. ulleungensis n. sp., are described from Namhaedo Island and Ulleungdo Island, Korea. Psammocinia conulosa n. sp. seems to be close to both P. amodes Cook and Bergquist, 1998 and P. hawere Cook and Bergquist, 1996 on the basis of the skeletal structure. However, these three species are clearly separated by the following differences: Shape of P. amodes is spatulate and thin, with a broad blade narrowing to a semi-cylindrical stalk; P. hawere forms cups with a shallow excavated bowl, and attached to the substratum by a narrow base. The whole surface of the new species is very finely conulose. Psammocinia ulleungensis n. sp. is similar to P. gageoensis Sim and Lee, 2001 in shape, but this species is easily distinguished from P. gageoensis by the simple skeletal structure.

• Animal cells and systems
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• v.14 no.1
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• pp.17-23
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• 2010

We isolated warm temperature acclimation-related protein 65-kDa (Wap65) cDNA from the liver of olive flounder and investigated the mRNA expression of Wap65 and HSP70 in olive flounder exposed to osmotic (17.5, 8.75, and 4 psu) and thermal stress (25 and $30^{\circ}C$). The mRNA expression of Wap65 and HSP70 was increased by thermal stress. The mRNA expression of HSP70 was also increased by osmotic stress, whereas no significant change in Wap65 expression was detected. These results indicate that Wap65 mRNA expression occurs specifically in response to increases in water temperature, but not in response to osmotic stress. Plasma cortisol levels were also increased by osmotic and thermal stress. We also utilized the stress hormone cortisol to examine whether Wap65 expression is thermal-stress-specific. Cortisol treatment increased HSP70 mRNA expression in vitro, but had no significant effect on Wap65 mRNA expression. Thus, thermal stress, but not osmotic stress, induces Wap65 expression.

• Animal Systematics, Evolution and Diversity
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• v.29 no.1
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• pp.36-50
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• 2013

As one of the serial faunistic studies on the brackish cyclopoids from Korea, taxonomic accounts of three species of Halicyclops from various brackish waters in South Korea are provided, with detailed illustrations of them: H. uncus Ueda and Nagai, 2009, H. setiformis Ueda and Nagai, 2012, and H. itohi Ueda and Nagai, 2012. Halicyclops uncus is newly recorded from Korea, and the latter two species are corrected from H. sinensis sensu Chang, 2009 and H. cf. rotundipes sensu Chang, 2009, respectively. As a result, a total of seven species of the genus are now recognized in Korea, and a revised key to the species is presented.

• Animal Systematics, Evolution and Diversity
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• v.29 no.1
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• pp.96-98
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• 2013

The Strombus Linn$\acute{e}$, 1758 is a genus of marine mollusks belonging to the class Gastropoda, and is distributed in the tropical waters of the world. Typically, the family Strombidae includes five extant genera (Strombus, Lambis, Terebellum, Tibia, and Rimella), all of which are mostly found in tropical waters. Five individuals of Strombus luhuanus Linn$\acute{e}$, 1758 were collected from Uljin, Gyeongsangbuk-do province for the first time. In this study, we describe details of shell morphology and radula characters of the species with scanning electron microscopy images of the radula. This is a new record of Strombus luhuanus Linn$\acute{e}$, 1758 from Korean waters.

• Animal Systematics, Evolution and Diversity
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• v.29 no.1
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• pp.31-35
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• 2013

Two sponges, Stelletta subtilis (Sollas, 1886) and Stryphnus sollasi n. sp., were collected from depth of 24-30 m at Jeju-do Island and Chuja-do Island by SCUBA diving from July 2003 to June 2010. The new species Stryphnus sollasi n. sp is similar with Stryphnus niger Sollas, 1886 in the composition of spicules, however they differ in colour and spicule size. This new species has smaller oxeas and larger oxyasters than those of S. niger. This new species has two size categories of oxyaster but S. niger has one size category of oxyaster. The colour of S. sollasi n. sp is white, but the latter puce black. Stelletta subtilis (Sollas, 1886) is first recorded in Korean fauna.

• Animal Systematics, Evolution and Diversity
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• v.33 no.3
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• pp.195-199
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• 2017

A sea cucumber was collected from Gonghyeonjin in the East Sea of Korea at a depth of 50 m on 22 June 2011 and was identified as Psolus phantapus (Strussenfelt, 1765). This species belongs to the family Psolidae of the order Dendrochirotida based on morphological characteristics and mitochondrial cytochrome c oxidase subunit I sequence analysis. Psolus phantapus, which widely distributes in the Arctic and North Atlantic Oceans, is newly recorded in the Korean fauna. Two Psolus species including the previously reported P. squamatus are recorded in the East Sea of Korea.

• Animal Systematics, Evolution and Diversity
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• v.34 no.3
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• pp.168-173
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• 2018

The family Triphoridae Gray, 1847 is a group of marine microgastropods characterized by sinistral (left-coiled) shells except for the subfamily Metaciinae, which has dextral shell coiling. We report a new record of Mastonia rubra (Hinds, 1843) collected from the intertidal zone from Jeju Island, Korea and revise species list for Korean Triphoridae species. Mastonia rubra is distinguished from Inforis fusiformis(Kosuge, 1961) by the purple color of the first and second whorls of the teleoconch, whereas they are light colored and nearly white corresponding whorls in I. fusiformis. Including this new record, the Korean Triphoridae comprises 20 species from 15 genera.

• Animal Systematics, Evolution and Diversity
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• v.34 no.3
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• pp.152-158
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• 2018

Two new records of spionid polychaetes, Prionospio pulchra Imajima, 1990 and Scolelepis (Scolelepis) sagittaria Imajima, 1992, collected from Korean waters are reported here with detailed descriptions and illustrations. Prionospio pulchra can be distinguished from its relatives by remarkably long and apinnate branchiae, the first chaetiger with notopodial chaetae, and the presence of ventral sabre chaetae. Scolelepis (Scolelepis) sagittaria is characterized by a sagittate prostomium, an occipital tentacle, and bi- or tridentate hooded hooks. In this paper, photographs of scanning electron microscopy for characteristic features of each species are presented. Keys to Prionospio and Scolelepis species from Korean waters are also provided.