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47 results for “Hediste”
Figure 43 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 43. Hypothesis of the phylogenetic relationships in three Asian Hediste species. Stars indicate reproductive characteristics; () reproductive swarming of epitokous adults with (A) or without (B) addition of epitoke-specific sesquigomph spinigers; () reproduction without swarming and any epitokous metamorphosis. Circular symbols indicate developmental characteristics; () pelagic development probably lecithotrophic from middle-sized eggs (180– 210 Mm in diameter) (A), or probably planktotrophic from small eggs (130–170 Mm) (B); () direct development from large eggs (200–250 Mm). (&) indicate the contrasting character combinations in immature specimens.1. Neuropodial homogomph falcigers present (A) or absent (B). 2. Neuropodial heterogomph spinigers present (A) or absent (B). 3. Neuropodial postsetal ligule tapering to digitate lobe throughout (A) or only in anterior setigers (B).
Figure 31 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 31. Number of simple chaetae and falcigers in each parapodium throughout body of a mature male () and a mature female () of Hediste atoka sp. nov. (same specimens as those shown in Fig. 30). (a) Simple chaetae in neuropodial supra-acicular fascicle. (b) Heterogomph falcigers in neuropodial supra-acicular fascicle. (c) Heterogomph falcigers in neuropodial infra-acicular fascicle.
Figure 22 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 22. Number of epitoke-specific sesquigomph spinigers in (a) notopodial, (b) neuropodial supra-acicular and (c) neuropodial infra-acicular fascicles of each parapodium throughout body of a mature male () and a mature female () of Hediste diadroma sp. nov. (specimens same as Fig. 18).
Figure 18 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 18. Number of spinigers in each parapodium throughout body of a mature male (, BL 37 mm with 85 setigers, paratype, ZIHU-2093) and a mature female (, BL 50 mm with 80 setigers, paratype, ZIHU-2092) of Hediste diadroma sp. nov. Homogomph spinigers in (a) notopodial fascicle, (b) neuropodial supra-acicular fascicle and (c) neuropodial infra-acicular fascicle. (d) Heterogomph spinigers in neuropodial infra-acicular fascicle.
Figure 16 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 16. Epitokous female of Hediste diadroma sp. nov. (holotype, NSMT-Pol-H456). (a) Dorsal view of anterior end; everted proboscis not shown here. (b & c) Dorsal and ventral views of the everted proboscis. (d) Dorsal view of Posterior end. (e-l) Parapodia of the left side (chaetae not shown in f, i, l). (e & f) Anterior and posterior views of parapodium 2. (g) Anterior view of parapodium 10. (h & i) Anterior and posterior views of parapodium 32. (j) Anterior view of parapodium 41. (k & l) Anterior and posterior views of parapodium 72. Scale bar = 1 mm.
Figure 44 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 44. Mean tidal range (vertical distance between mean low and high tide marks) in spring tides in Japan and neighbouring countries. After Sato & Takita (2000).
Figure 40 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 40. Number of paragnaths on groups II (a), IV (b) and VII-VIII (c) in proboscis of immature specimens of three Hediste species collected from 19 localities in Korea and Kyushu, Japan. Total numbers in right and left sides are shown for groups II and IV. Average and SD bar are shown in each locality, based on data shown in Tables 2, 4 and 5 and additional data for three localities (3–5). Body sizes of all specimens are comparable to those of mature adults (see Tables 2, 4 and 5). The locality numbers are arranged from north to south. The number on each datum indicates sample size. Significance of difference of mean numbers between the sympatric populations of H. diadroma sp. nov. and H. atoka sp. nov. in four localities (3, 13, 16, 18), and H. diadroma sp. nov. and H. japonica in a single locality (10), was tested by the Mann–Whitney U-test. Differences: not significant (NS, P> 0.05); significant (*P <0.05, **P <0.001, ***P <0.0001). 1. Inchon. 2. Kunsan. 3. Kusamigawa River. 4. Tsuyazaki. 5. Wajirogawa River. 6. Daijugarami. 7. Rokkakugawa River. 8. Honmyogawa River. 9. Kobe. 10. Omutagawa River. 11. Domengawa River. 12. Kikuchigawa River. 13. Maekawa River. 14. Minamatagawa River. 15. Manosegawa River. 16. Omoigawa River. 17. Nagatagawa River. 18. Atagogawa River. 19. Honjogawa River.
Figure 42 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 42. Comparisons of number of paragnaths on groups II (a), IV (b) and VII-VIII (c) in field-derived mature (), immature () and laboratory-bred immature () specimens of H. diadroma sp. nov. and H. atoka sp. nov. Total numbers in right and left sides are shown for groups II and IV. All specimens of H. diadroma sp. nov. were derived from the Omoigawa River, Kagoshima Prefecture. All specimens of H. atoka sp. nov. were derived from the Nagatagawa River, Kagoshima Prefecture. Average and SD bar are shown for each bar, based on data shown in Tables 4 and 5. The body sizes of all immature specimens are comparable to those of mature adults (see Tables 4 and 5). The number on each datum indicates sample size.
Figure 25 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 25. Relationship between body width and total paragnath number of all groups on proboscis of mature adults of Hediste diadroma sp. nov. () Specimens collected from Omoigawa River (n = 64). () Specimens collected from Nagatagawa River (n = 35).
Figure 15 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 15. Distribution of Hediste japonica. 1. Kojima Bay (type locality). 2. Omutagawa River. 3. Daijugarami. 4. Rokkakugawa River. 5. Nanaura. 6. Honmyogawa River. 7. Onojima. 8. Nitandagawa River. 9. Ariakegawa River. 10. Yamadagawa River. 11. Kojirogawa River. 12. Yongyudo Island, Inchon. 13. Kumu River, Kunsan. D. Reclamation dyke, 7 km. All Hediste populations within the inner part of Isahaya Bay (6–10) were lost upon completion of dyke construction in April 1997. The habitat in the inner part of Kojima Bay (1, type locality) was also lost in 1959 when the land was reclaimed and a freshwater pond appeared due to the construction of a dyke similar to that of Isahaya Bay.
Figure 36 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 36. Relationship between body width and total paragnath number of all groups on proboscis of mature adults of Hediste atoka sp. nov. () Specimens collected from Kotsukigawa River (n = 61). (▲) Specimens collected from Nagatagawa River (n = 28). () Specimens collected from Shinjogawa River (n = 20).
Figure 13 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 13. Relationships between body width and paragnath number in (a) group II (total number on right and left sides), (b) group III and (c) all groups in Hediste japonica. () Mature specimens collected from Kojima Bay (type series) and the Ariake Sea. () 86 immature specimens collected from the Ariake Sea. () 28 immature specimens collected from the Yellow Sea (Korea).
Figure 12 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 12. Relationship between body width and eye width in mature (closed symbols) and immature specimens (open symbols) of Hediste japonica. Four mature male (), 4 female () and 22 immature specimens () were collected from the Ariake Sea; 23 immature specimens () were collected from the Yellow Sea in Korea.
Figure 11 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 11. Relationships between body width and body length (a) and between body width and setiger number (b) in Hediste japonica. () Nine mature specimens collected from Kojima Bay (type series) and Ariake Sea; () 29 immature specimens collected from the Ariake Sea; () 13 immature specimens collected from Yellow Sea in Korea.
Figure 10 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 10. Typical electrophoretic patterns of lactate dehydrogenase in three Asian species of Hediste. A, H. atoka sp. nov. collected from the Omoigawa River; D, H. diadroma sp. nov. collected from the Omoigawa River; J, H. japonica collected from Daijugarami. White arrow indicates origin.
Figure 9 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 9. Mature adults of Hediste japonica (nontype, ZIHU-2102, 2103). (a & b) Dorsal views of prostomium of male and female. (c) Anterior views of parapodium 26 (left side) of a male. (d) Anterior view of parapodium 28 (left side) of a female. Scale bar = 1 mm.
Figure 21 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 21. Epitoke-specific sesquigomph spinigers of mature adults of Hediste diadroma sp. nov. (a) Many transparent epitoke-specific sesquigomph spinigers (E) added behind the notopodial fascicle of ordinary homogomph spinigers (H) in parapodium 30 (paratype, ZIHU-2096). ¥175. (b) Epitoke-specific sesquigomph spinigers in parapodium 20 of a female (paratype, SMF-12068). ¥350. (c) Enlarged part around base of blade of an epitoke-specific sesquigomph spiniger (specimen same as b). ¥700.
Figure 19 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 19. Number of simple chaetae and falcigers in each parapodium throughout body of a mature male () and a mature female () of Hediste diadroma sp. nov. (same specimens as those shown in Fig. 18). (a) Simple chaetae in neuropodial supra-acicular fascicle. (b) Heterogomph falcigers in neuropodial supra-acicular fascicle. (c) Heterogomph falcigers in neuropodial infra-acicular fascicle.
Figure 7 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 7. Chaetae of a mature female of Hediste japonica (Lectotype, UMUTZ-PLC-IZ-55A). (a) Homogomph spiniger from neuropodial supra-acicular fascicle in parapodium 30. (b) Enlarged part around base of blade of homogomph spiniger in a. (c) Heterogomph falciger from neuropodial supra-acicular fascicle in parapodium 30. (d) Simple chaeta from neuropodial supra-acicular fascicle in parapodium 71. (e) Homogomph falciger from neuropodial infra-acicular fascicle in parapodium 30. Scale bar = 0.1 mm.
Figure 29 in A review of Asian Hediste species complex (Nereididae, Polychaeta) with descriptions of two new species and a redescription of Hediste japonica (Izuka, 1908)
Figure 29. Chaetae of a mature female of Hediste atoka sp. nov. (paratype, ZIHU-2098). (a) Homogomph spinigers from notopodial fascicle in parapodium 3. ¥290. (b) Enlargement of base of blade in a. ¥580. (c) Heterogomph spiniger from neuropodial infra-acicular fascicle in parapodium 1. ¥580. (d) Heterogomph falcigers from neuropodial infra-acicular fascicle in parapodium 3. ¥580. (e) Simple chaeta from neuropodial supra-acicular fascicle in parapodium 64. ¥580.
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