Two new free-living marine nematodes of the genus Belbolla (Nematoda, Enoplida, Enchelidiidae) from a shallow subtidal benthic habitat of the outermost islands of Korea
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Two new free-living marine nematodes of the genus Belbolla Andrássy, 1973 belonging to family Enchelidiidae are newly described based on specimens obtained from a shallow subtidal sediment of the western and southern outermost islands of Korea. Belbolla koreensis sp. nov. differs from other species of the genus by the combination of the following characteristics: longer body length (3,080-3,462 μm long), eight oesophageal bulbs in the posterior region of pharynx, well-developed two winged precloacal supplements (anterior precloacal supplement slightly longer than posterior one: 47-59 μm vs. 43-46 μm long), strongly arcuated, very thick, L - shaped spicule (122-127 μm long, 1.7-1.9 anal body diameter (a.b.d.) long) with three separated blunt distal tips, and well-developed relatively long cylindrical shaped gubernacular apophysis with blunt teeth covering two thirds of the dorsal margin (57-58 μm long, 0.8-0.9 a.b.d. long). Belbolla hoonsooi sp. nov. is characterized by the following combination of characteristics: longer body length (3,494 μm long), eight oesophageal bulbs in the posterior region of pharynx, well-developed two winged precloacal supplements (anterior precloacal supplement slightly longer than posterior one: 43 μm vs. 36 μm long), strongly arcuated, L - shaped spicule (119 μm long, 1.5 a.b.d. long) with three separated blunt distal tip, and well-developed relatively long inverted triangle shaped gubernacular apophysis with blunt teeth covering half of the dorsal margin (45 μm long, 0.6 a.b.d. long). Detailed morphological characteristics and illustrations of two new Belbolla nematodes from the Korean seawaters were provided by differential interference contrast microscopy. Comparative tables on biogeographical and morphological characteristics of Belbolla species are also provided herein.
Abstract
Two new free-living marine nematodes of the genus Belbolla Andrássy, 1973 belonging to family Enchelidiidae are newly described based on specimens obtained from a shallow subtidal sediment of the western and southern outermost islands of Korea. Belbolla koreensis sp. nov. differs from other species of the genus by the combination of the following characteristics: longer body length (3,080-3,462 μm long), eight oesophageal bulbs in the posterior region of pharynx, well-developed two winged precloacal supplements (anterior precloacal supplement slightly longer than posterior one: 47-59 μm vs. 43-46 μm long), strongly arcuated, very thick, L - shaped spicule (122-127 μm long, 1.7-1.9 anal body diameter (a.b.d.) long) with three separated blunt distal tips, and well-developed relatively long cylindrical shaped gubernacular apophysis with blunt teeth covering two thirds of the dorsal margin (57-58 μm long, 0.8-0.9 a.b.d. long). Belbolla hoonsooi sp. nov. is characterized by the following combination of characteristics: longer body length (3,494 μm long), eight oesophageal bulbs in the posterior region of pharynx, well-developed two winged precloacal supplements (anterior precloacal supplement slightly longer than posterior one: 43 μm vs. 36 μm long), strongly arcuated, L - shaped spicule (119 μm long, 1.5 a.b.d. long) with three separated blunt distal tip, and well-developed relatively long inverted triangle shaped gubernacular apophysis with blunt teeth covering half of the dorsal margin (45 μm long, 0.6 a.b.d. long). Detailed morphological characteristics and illustrations of two new Belbolla nematodes from the Korean seawaters were provided by differential interference contrast microscopy. Comparative tables on biogeographical and morphological characteristics of Belbolla species are also provided herein.
참고문헌 (20)
- Allgén CA, "Pacific freeliving marine nematodes. (Papers from Dr. Th. Mortensen’s Pacific Expedition 1914-16. LXXVI). Vidensk. Meddr. fra Dansk naturh", Foren, 113, pp.263~411 (1951)
- Andrássy I, "Über vier homonym Nematodengattungen", Nematologica, 19, pp.403~404 (1973)
- Belogurov OI, "Morphology of Belbolla intarma sp. n., diagnosis and a table for the species of the genus Belbolla", Biol. Morya, 4, pp.74~77 (1980)
- Burgess R, "An updated protocol for separating meiofauna from sediments using colloidal silica sols", Mar. Ecol. Prog. Ser, 214, pp.161~165 (2001)
- Cobb NA, "One hundred new nemas(type species of 100new genera)", Contrib. to a Science of Nematology(Baltimore), 9, pp.217~343 (1920)
- Gagarin VG, "Adoncholaimus minor sp. n. and Belbolla vietnamica sp. n. (Nematoda, Enoplida) from mangrove forest of the Yen River Estuary in Vietnam", Int. J. Nematol, 26, pp.1~8 (2016)
- Gagarin VG, "Two new nematode species (Nematoda) from the mangroves of the Yen River Delta, Vietnam", Inland Water Biol., 9, pp.39~47 (2016)
- Guo YQ, "Three new species of free-living nematodes from the Bohai Sea, China", J. Nat. Hist, 35, pp.1575~1586 (2001)
- Huang Y, "Three new species of the genus (Nematoda: Enoplida: Enchelidiidae) from the Yellow Sea, China", China. J. Nat. Hist, 39, pp.1689~1703 (2005)
- Inglis WG, "Two new species of free-living marine nematodes from the west coast of Scotland", Hydrobiologia, 18, pp.284~292 (1961)
- Juario JV, "Neue freilebende Nematoden aus dem sublitoral der Deutschen Bucht", Veröff. Inst. Meeresforsch. Bremerh, 14, pp.275~303 (1974)
- Kristensen RM, "Marine Tardigrada from the southeastern United States coastal waters. I. Paradoxipus orzeliscoides n. gen., n. sp. (Arthrotardigrada, Halechiniscidae)", Trans. Am. Microsc. Soc., 108, pp.262~282 (1989)
- Luc M, "Travaux de la Station Bio -logique de Roscoff, LII. Nematodes libres marins de la region de Roscoff", Arch. Zool. Exp. Gen, 98, pp.103~165 (1959)
- Micoletzky H, "Freilebende marine Nematoden von den Sunda-Inseln. I. Enoplidae. (Papers from Dr. Th. Mortenson’s Pacific Expedition 1914-16) (Ed. HA Kreis). Vidensk. Meddel. Dansk Naturhist. Foren", Kjøbenhavn, 87, pp.232~339 (1930)
- Nasira K, "Description of Bathyeurystomina minima sp. n. and Belbolla longispiculata sp. n. with observations on Pareurystomina vaughtae and Eurystomina indica (Enoplida: Enchelidiidae) from Pakistan", Int. J. Nematol, 24, pp.87~96 (2014)
- 노현수, "A new free-living marine nematode species of the genus Belbolla (Enoplida, Enchelidiidae) from a subtidal zone of the East Sea, Korea, with some ecological and biogeographical information", 환경생물, 38(4), pp.578~585 (2020), 한국환경생물학회[DOI]
- Seinhorst JW, "A rapid method for the transfer of nematodes from fixative to anhydrous glycerin", Nematologica, 4, pp.67~69 (1959)
- Smol N, "Handbook of Zoology. Gastrotricha, Cycloneuralia and Gnathifera. Vol 2. Nematoda. 7.3 Order Enoplida", pp.193~246 (2014), Walter De Gruyter
- Shirayama Y, "Double-slided microscopic observation of meiofauna using an HS-slide", Benthos Res, 44, pp.41~44 (1993)
- Timm RW, "The marine nematodes of the Bay of Bengal", Proc. Pakist. Acad. Sci, 1, pp.1~88 (1961)