A new species Myxobolus guanqiaoensis was found in the liver and abdominalcavity of Allogynogenetic silver prassian carp at Guanqiao, in Oct l996. The typespecimens were preserved in the Laboratory of Hsh ixseases, In...A new species Myxobolus guanqiaoensis was found in the liver and abdominalcavity of Allogynogenetic silver prassian carp at Guanqiao, in Oct l996. The typespecimens were preserved in the Laboratory of Hsh ixseases, InshtUte of Hydrobiology,The Chinese Academy of Sciences, Wuhan, China.apcobolus guanqiaoensis sp. nov.Host and site: Allogynogenehc si1ver crucian carp (Carassius auratus gibelio l XCyPrinus carP io J), Liver and abdowhnal cavity.Locality: Guanqiao, Wuhan, China.Infechon ratet above 6o%.Cystt Oval or elliptic in fOrm, white in color; 2.l-4.Ocm in diametef, embracedby a tf8nsparent membrane.Sporest Spores elongatedsioval in thecal view. Pointed at anterior end and blunhyround in posterior end; l-3 V-shaPed folds at posterior end; elongated elliphc insutural view, sutUral line S-shaPed and dishnct shell valves smooth; intercaPsularaPPendix dishnct. Two polar capsules eggplant unequal in size, polar caPsule locatedat l / 2 position of spore length; 7-8pm flat coiled filamenLChmensions of 2o fresh spores f tength l9.6(l8.2-22.o)pm. width Io.8(9.O-l3.2)pm. thickness 8.3(8.O-9.o)Um, large po1ar capsules 9.5(8.8-lO.l) by 3.7(3.O-4.4)Um,small polar caPsules 8.4(7.9-9.8) by 3.6(3.2-4.O)Um. Polar caPsule nuclei sitUated atthe inner of tWo polar capsules. An indistinct iodinophilous vacuole and two roundgerminal nuclei.The shape of trhis new sPecies is similar to apcobolus gigi, M)Af)bolus kDi andapcobolus aureatus, but differs from them in dimensions of sPore, the size of POlarcapsule, suture line and host.展开更多
The present paper deals with a new species of the genus Myxobolus parasitizing the fish ( Carassius auratus auratus) in Beibei, Chongqing, China. Type specimens are deposited in College of Life Sciences, Southwest Chi...The present paper deals with a new species of the genus Myxobolus parasitizing the fish ( Carassius auratus auratus) in Beibei, Chongqing, China. Type specimens are deposited in College of Life Sciences, Southwest China Normal University. All measurements are in microns. Myxobolus beibeiensis sp. nov. (Figs. 1—4) Host\ Carassius auratus auratus (Linnaeus). Location\ gill. Locality\ Beibei (29°49′ N, 106°25′ E),Chongqing. Date\ Aug. 16, 1996. Vegetative form is not being observed. Spore in shape of pumpkin seed in thecal view, with blunt and rounded posterior end, tapering to anterior extremity, with widest part in field from half level to anterior two-thirds level of body, and with 3—4 small V shaped folds on posterior part in some spores; convex lens shaped in sutural view, sutural ridge distinct and straight; two short rod like polar capsules not equal in size, with a triangular or round nucleus behind them, and their anterior extremities not on the same level, larger polar capsule occupying two-fifths of spore length; sporoplasm concentrated, with two round germinal nuclei and an iodinophilous vacuole. Dimensions of spores preserved in formalin (5% in Concentration): length 17.2 (16.0—19.1), width 11.5(10.2—13.0), thickness 8.0(7.1—9.5); larger polar capsules 8.8(8.2—9.7) by 3.3(3.2-3.4), smaller polar capsules 7.8(7.5—8.0) by 3.0(2.8? ?.2). This species is similar to Myxobolus tayehensis Chen, 1998, but differs from the latter in following respects: (1) spores of the new species are in the shape of pumpkin seed in thecal view, while spores of M. tayehensis are pyriform or bulb shaped; (2) the two polar capsules of the new species are not equal in size, and the larger one occupies two fifths of the spore length, while those of M. Tayehensis are equal in size, and occuping one half of spore. This species also resembles M. orientalis Schulman, 1962, but differs from the latter in two respects. (1) Spore length of the new species in about one and half times as long as spore width, while that o展开更多
文摘A new species Myxobolus guanqiaoensis was found in the liver and abdominalcavity of Allogynogenetic silver prassian carp at Guanqiao, in Oct l996. The typespecimens were preserved in the Laboratory of Hsh ixseases, InshtUte of Hydrobiology,The Chinese Academy of Sciences, Wuhan, China.apcobolus guanqiaoensis sp. nov.Host and site: Allogynogenehc si1ver crucian carp (Carassius auratus gibelio l XCyPrinus carP io J), Liver and abdowhnal cavity.Locality: Guanqiao, Wuhan, China.Infechon ratet above 6o%.Cystt Oval or elliptic in fOrm, white in color; 2.l-4.Ocm in diametef, embracedby a tf8nsparent membrane.Sporest Spores elongatedsioval in thecal view. Pointed at anterior end and blunhyround in posterior end; l-3 V-shaPed folds at posterior end; elongated elliphc insutural view, sutUral line S-shaPed and dishnct shell valves smooth; intercaPsularaPPendix dishnct. Two polar capsules eggplant unequal in size, polar caPsule locatedat l / 2 position of spore length; 7-8pm flat coiled filamenLChmensions of 2o fresh spores f tength l9.6(l8.2-22.o)pm. width Io.8(9.O-l3.2)pm. thickness 8.3(8.O-9.o)Um, large po1ar capsules 9.5(8.8-lO.l) by 3.7(3.O-4.4)Um,small polar caPsules 8.4(7.9-9.8) by 3.6(3.2-4.O)Um. Polar caPsule nuclei sitUated atthe inner of tWo polar capsules. An indistinct iodinophilous vacuole and two roundgerminal nuclei.The shape of trhis new sPecies is similar to apcobolus gigi, M)Af)bolus kDi andapcobolus aureatus, but differs from them in dimensions of sPore, the size of POlarcapsule, suture line and host.
文摘The present paper deals with a new species of the genus Myxobolus parasitizing the fish ( Carassius auratus auratus) in Beibei, Chongqing, China. Type specimens are deposited in College of Life Sciences, Southwest China Normal University. All measurements are in microns. Myxobolus beibeiensis sp. nov. (Figs. 1—4) Host\ Carassius auratus auratus (Linnaeus). Location\ gill. Locality\ Beibei (29°49′ N, 106°25′ E),Chongqing. Date\ Aug. 16, 1996. Vegetative form is not being observed. Spore in shape of pumpkin seed in thecal view, with blunt and rounded posterior end, tapering to anterior extremity, with widest part in field from half level to anterior two-thirds level of body, and with 3—4 small V shaped folds on posterior part in some spores; convex lens shaped in sutural view, sutural ridge distinct and straight; two short rod like polar capsules not equal in size, with a triangular or round nucleus behind them, and their anterior extremities not on the same level, larger polar capsule occupying two-fifths of spore length; sporoplasm concentrated, with two round germinal nuclei and an iodinophilous vacuole. Dimensions of spores preserved in formalin (5% in Concentration): length 17.2 (16.0—19.1), width 11.5(10.2—13.0), thickness 8.0(7.1—9.5); larger polar capsules 8.8(8.2—9.7) by 3.3(3.2-3.4), smaller polar capsules 7.8(7.5—8.0) by 3.0(2.8? ?.2). This species is similar to Myxobolus tayehensis Chen, 1998, but differs from the latter in following respects: (1) spores of the new species are in the shape of pumpkin seed in thecal view, while spores of M. tayehensis are pyriform or bulb shaped; (2) the two polar capsules of the new species are not equal in size, and the larger one occupies two fifths of the spore length, while those of M. Tayehensis are equal in size, and occuping one half of spore. This species also resembles M. orientalis Schulman, 1962, but differs from the latter in two respects. (1) Spore length of the new species in about one and half times as long as spore width, while that o
