Henricia specimens were collected using fishing nets from the East Sea of Korea. The specimens were identified as Henricia oculata Pennant, 1777, belonging to the family Echinasteridae of the order Spinulosida. This species can be distinguished from other Henricia species by broad arms (R/r=4-4.1), rough skin, a thick arm base, three to nine minute delicate abactinal spines, and inferomarginal plates reniform in shape. This species superficially resembles H. pachyderma in its body size and wide papular areas but differs mainly in the number of papulae and abactinal spines, and the shape and arrangement of the inferomarginal plates. To date, two genera of Echinasteridae, Aleutihenricia and Henricia, with a total of 13 species, have been reported in Korea. The morphological characteristics of H. oculata are described, and photographs are provided.

A marine red algal species was collected from Uljin, located on the eastern coast of Korea, during a survey of marine algal flora. This alga shares the generic features of Plocamium, and is characterized by linear, flat and thin thalli with narrow axes, branches developing in alternating pairs from margins of the axes, two to four times alternately pinnately branching, linear or occasionally adaxially curved lowermost branchlets and distinctly and compactly clustered stichidia. In a phylogenetic tree based on rbcL sequences, the Korean alga nests in the same clade as P. serrulatum. The genetic distance between both sequences within the clade was calculated as 0.0-0.2%. Based on the morphological and molecular data, this Korean species is identified as P. serrulatum described originally from Taiwan. This is the first record of P. serrulatum in Korean marine algal flora.

본 연구를 통해 Macrobathra속이 우리나라에서는 처음으로 기록되며, 본 속에 속하는 1종(M. quercea Moriuti, 1973)을 우리나라에서는 처음으로 보고한다. 본 종의 정확한 분류 동정을 위해 외부형태학적 특징을 검경 및 도해하고, 성충 및 생식기 사진, 분포정보 및 기주식물 등의 정보를 제시하였다.

Many spiders belonging to Enoplognatha Pavesi, 1880 and Parasteatoda Archer, 1946 of Theridiidae were collected with sweep net between shrubs and bushes in the mountain forest during a survey of the mountain spider fauna. Among the spiders collected, male Enoplognatha gramineusa Zhu, 1998 and female Parasteatoda ryukyu (Yoshida 2000) were recognized as newly recorded spiders to Korean spider fauna. The present work describes these two spiders with measurements and morphological illustrations.

A marine green algal species (Chlorophyta) was collected from the eastern coast of Korea. It is morphologically characterized by monostromatic thallus, usually undulate and entire margins, cap-like chloroplast and several pyrenoids per cell. In a phylogenetic tree based on molecular data, the Korean alga nests in the same clade as Monostroma alittorale originally described from Japan, as a sister clade of M. grevillei from France. The genetic distance for ITS (Internal Transcribed Spacer) sequences among Monostroma species ranges from 2.3% to 38.2%. The value between the Korean entity and M. alittorale was calculated as 0.01%, considered to be intraspecific divergence. This Korean entity is identified as Monostroma alittorale based on morphological and molecular analyses. This is the first record of M. alittorale in Korea.

국내 금강수계의 하구역에 위치한 하제항 암벽으로부터 기중성 남세균이 채집되어, 단조류 배양되었다. 2개의 남세균 배양주로부터 형태적 형질과 TEM에 의한 세포 미세구조 특징을 관찰하였다. 또한 16S rDNA 염기서열을 규명하여 BLAST 검색, 염기서열 유사도, 유전거리 및 계통 분석을 실시하였다. 국내 배양주는 Wilmottia murrayi와 계통학적으로 동일한 clade를 형성하였고, 99% 이상의 유사도를 나타냈다. TEM을 통한 세포 미세구조는 틸라코이드가 여러겹으로 세포막 주변에 분포하는 특징을 나타냄으로써 Coleofasciculaceae과의 특징과 일치하였다. 이상의 결과를 통해 W. murrayi를 국내 미기록속 및 미기록종으로 보고하였다.