摘要
本文记述寄生在异育银鲫腹腔的粘体虫一新种，定名为辽宁粘体虫，新种Ｍｙｘｏ－ｓｏｍａ ｌｉａｏｎｉｎｇｅｎｓｉｓ ｓｐ．ｎｏｖ．。新种与大形粘体虫 Ｍｙｘｏｓｏｍａ ｍａｇｎａ近似。模式标本保存在辽宁省淡水水产研究所。
This paper deals with a new species of parasitic Myxosoma from pond-reared Crucian Carp (Carassius auratus gibelio) in Liaoning Province, China. Measurements are in microns. Type specimens are deposited in the Research institute for Freshwater Fisheries of Liaoning Province. Myxosoma liaoningensis sp. nov. (Figs. 1-3) Host Carasslus auratus gibelio (Bloch). Location. Abdorninal cavity. Locality. Dengta County (41° 29’ N, 123°11’ E), Liaoning Province. Cyst. Milky white in colour, irregular in shape. Dimension of the two preserved (in 4% formalin) cysts was 25 000 × 15 000 × 11 000 and 24 000 × 16 000 × 18 000 separately. Spore. Large, oval in thecal view, anterior end pointed and posterior end broadly rounded, shell valves smooth and without 'V' shaped folds; fusiform in sutural view, sutu- ral ridge distinct and straight. Two elongated pearl form polar capsules arranged at the anterior end without intercapsule process. Dimensions of preserved (in 4% formalin) spores: length 17. 4 (15. 5-20. 0), width 11. 4 (10. 5-12. 5 ); thickness 8. 4 (8. 0-9. 5); width of sutural ridge 1. 6 (1. 5-1. 7); polar capsule 8. 4(7. 5-10. 0) by 3. 7(3. 0-4. 5). This new species is similar to Myxosoma magna Wu et Li 1986 in size of spores, but differs from the latter in shape of spores and polar capsules.
出处
《动物分类学报》
CSCD
1997年第2期115-117,共3页
Acta Zootaxonomica Sinica
关键词
粘孢子纲
双壳目
粘体科
粘体虫属
新种
Myxosporea
Bivalvulida
Myxosomatidae
Myxosoma
new species.
