• Journal of Species Research
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• 제7권4호
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• pp.340-347
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• 2018

Four psammocinian species(Demospongiae: Dictyoceratida: Irciniidae) are described from Gageodo and Jejudo Islands, Korea. Among them, three are new species, Psammocinia rana, P. massa and P. vermins, which are very different from other recorded species. Secondary fibres of Psammocinia rana are mostly wide platelike shape with large perforation. Primary and secondary fibres of Psammocinia massa are lumped together in a thick mass through numerous areas. Psammocinia vemis is similar to P. mosulpia in skeletal structure, but differs in size of cored sands in primary fibres. The fourth species, we reclassify from Ircinia chupoensis to Psammocinia chupoensis based on more detailed observation of the skeletal structure. Ircinia only has sand cored primary fibres, while the observed species, has sand cored primary and secondary fibres.

• Journal of Species Research
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• 제6권spc호
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• pp.94-109
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• 2017

Eleven new species of two genera, Psammocinia and Ircinia (Demospongiae: Dictyoceratida: Irciniidae) are described from Gageo Island, Ulleung Island and Jeju Island, South Korea. The separation of these two genera was made on basis of morphological evidence, especially skeletal structure with foreign debris. Six new species of Psammocinia and five new species of Ircinia were added to known fauna. All skeletal fibres are very irregular.

• Animal Systematics, Evolution and Diversity
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• 제14권1호
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• pp.35-42
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• 1998

제주도와 남해도에서 채집된 모래해면속의 3신종, Psammocinia mammiformis, P. mosulpia, 그리고 P. jejuensis를 기재한다. 모래해면속의 특징은 많은 양의 모래입자가 그들의 섬유나 기질안에 포함되어 있거나 또는 해면의 표면에 모래껍질로서 포함되어 있는 것이 특징이다.

• Animal cells and systems
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• 제6권1호
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• pp.53-57
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• 2002

Two new species of the genus Psammocinia (Dictyoceratida, Irciniidae), P. lobatus and P. rubra, are described from Gageodo Island (Sohuksando Island)and Jejudo Island, Korea. Psammocinia lobatus is most closely related to P. wandoensis Sim and Lee in growth form. However, it can be distinguished by its sharp conules and primary and secondary fibres, lightly cored with detritus. Psammocinia rubra is readily distinguished from the other described Psammocinia species by the blunt conules, reddish brown color of specimen, brown color of fibres and filaments, secondary web between adjacent primary fibres and filament coated with brown granules.

• Animal cells and systems
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• 제8권3호
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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 Systematics, Evolution and Diversity
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• 제14권4호
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• pp.335-340
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• 1998

한국의 남해에서 채집된 모래해면 속의 2신종, 삼양모래해면(Psammocinia samyangensis n. sp.)과 완도모래해면 (P. wandoensis n. sp.)을 명명하고 기재하였다. 완도모래해면은 호주의 P. rugosa(Lendenfeld, 1889)와 외형에서 많이 유사하지만 filaments에서 차이를 나타내며, 삼양모래해면은 제주모래해면(P. jejuensis)과 유사하나 섬유의 형태에서 차이를 나타낸다.

• Animal Systematics, Evolution and Diversity
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• 제17권2호
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• pp.245-250
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• 2001

한국 가거도에서 채집된 모래해면속(망각해면목: 가는실해면과)의 2 신종, 버키스트모래해면(Psammocinis bergquisti n. sp.) 과 가거모래해면(P. gageoensis n. sp.)을 기색한다. 버키스트모래해면은 외형이 엄지손가락 모양이며 지금까지 알려진 모래해면 속의 종들은 좁고 단순한 형태의 2차섬유를 갖는 반면 본 신종은 2차섬유가 얇은 판 모양이거나 넓은 망구조이다. 가거모래해면은 모슬모래해면(P. mosulpia Sim. 1998) 과 외형에서 매우 유사하지만, 1차섬유가 복잡한 총생모양으로 섬유 내부에 있는 모래와 골편들의 겉으로 잘 보이지 않은 점이 특징이다. 가거모래해면의 1차섬유 속에는 모슬모래해면의 1차섬유 속의 모래보다 작은 모래들이 있다.

• Natural Product Sciences
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• 제11권4호
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• pp.253-256
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• 2005

An investigation of the MeOH soluble fractions of marine sponge Psammocinia sp. (Order: Dictyoceratida) led to the isolation of a new epidioxy sterol (1) and four known sterols (2-5). Their planar structures were defined by analyses of the spectroscopic data. The 27-nor-24-methylcholestan type side chain with an epidioxy nucleus (1) was unprecedented. Compounds 1-5 were isolated from a sponge Psammocinia sp. for the first time.