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365 results for “Nereididae”
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.
Figure 14 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 14. Gametes of Hediste japonica collected from the Ariake Sea. (a) Micrograph of a full-grown oocyte. Scale bar = 100 Mm. (b) Phase-contrast micrograph of a sperm head with a conical acrosome (arrow). Scale bar = 1 Mm.
Figure 20 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 20. Anterior views of parapodium 28–32 of various sized immature atokous specimens (a-c), epitokous mature females (d-f) and males (g-i) of Hediste diadroma sp. nov. Chaetae not shown. (a) 2-year-old specimen after artificial fertilization, Omoigawa River, BW 5.1 mm. (b) 2-year-old specimen after artificial fertilization, Omoigawa River, BW 4.2 mm. (c) 1-year-old specimen after artificial fertilization, Omoigawa River, BW 2.0 mm. (d) Paratype (USNM-1008439), after spawning, BW 2.6 mm. (e) Paratype (OMNH-Iv-4228), after spawning, BW 2.7 mm. (f) Paratype (ZIHU-2094), before spawning, BW 4.6 mm. (g) Paratype (MNHN-Poly-1369), after spawning, BW 3.3 mm. (h) Paratype (SMF-12067), after spawning, BW 2.3 mm. (i) Paratype (ZIHU-2095), after spawning, BW 2.4 mm. Scale bar = 1 mm.
Figure 6 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 6. Chaetae of immature specimens (a-f, NSMT-Pol-107441) and a mature male (g, ZIHU-2103) of Hediste japonica (nontype with body width of 2.8–3.0 mm). (a) Homogomph spiniger from notopodial fascicle in parapodium 5. (b) Heterogomph falciger from neuropodial supra-acicular fascicle in parapodium 30. (c) Simple chaeta from neuropodial supra-acicular fascicle in parapodium 78. (d) Homogomph spiniger from neuropodial infra-acicular fascicle in parapodium 78. (e) Homogomph falciger from neuropodial infra-acicular fascicle in parapodium 30. (f) Heterogomph falciger from neuropodial infra-acicular fascicle in parapodium 5. (g) Epitokous homogomph spiniger from neuropodial infra-acicular fascicle in parapodium 50. Scale bar = 0.1 mm.
Figure 4 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 4. Immature specimen of Hediste japonica (nontype, a-d, NSMT-Pol-107441, e-k, CMNH-ZW-1888). (a) Dorsal view of anterior end (everted proboscis not shown). (b) Dorsal view of the everted proboscis. (c) Ventral view of the everted proboscis. (d) Dorsal view of posterior end. (e-k) Parapodia of the left side (chaetae not shown in f, k). (e & f) Anterior and posterior views of parapodium 1. (g) Anterior view of parapodium 10. (h & i) Anterior and posterior views of parapodium 30. (j & k) Anterior and posterior views of parapodium 72. Scale bar = 1 mm.
Figure 3 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 3. Mature female of Hediste japonica (Lectotype, UMUTZ-PLC-IZ-55A). (a) Dorsal view of anterior end with an everted proboscis. (b) Ventral view of proboscis. (c) Dorsal view of posterior end. (d-j) Parapodia of the left side (chaetae not shown in e, h, j). (d & e) Anterior and posterior views of parapodium 2. (f) Anterior view of parapodium 10. (g & h) Anterior and posterior views of parapodium 30. (i & j) Anterior and posterior views of parapodium 71. Arrows in h and j indicate a diagnostic characteristic, presence of a digitate lobe at tip of the postchaetal ligule in posterior neuropodia. Scale bar = 1 mm.
Figure 17 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 17. Chaetae of an epitokous female of Hediste diadroma sp. nov. (paratype, ZIHU-2092). (a) Homogomph spinigers from notopodial fascicle in parapodium 71. ¥40. (b) Enlargement of base of blade in a. ¥580. (c) Heterogomph spiniger from neuropodial infra-acicular fascicle in parapodium 3. ¥290. (d) Enlargement of base of blade in c. ¥580. (e) Heterogomph falcigers from neuropodial infra-acicular fascicle in parapodium 16. ¥580. (f) Simple chaeta from neuropodial supraacicular fascicle in parapodium 75. ¥580.
Figure 34 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 34. Relationships between body width and (a) body length, (b) wet body weight before shedding of gametes and (c) setiger number in mature adults () and immature specimens () of Hediste atoka sp. nov. (a) Mature adults (n = 44) collected from six localities. (b) Mature adults (n = 27) collected from three localities. Immature specimens (n = 25) were laboratory-bred from artificial fertilization of gametes collected from Nagatagawa River. (c) Mature adults (n = 34) collected from five localities.
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