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6 results for “Marenzelleria”
FIGURE 3 in A review of the worldwide distribution of Marenzelleria viridis, with new records for M. viridis, M. neglecta and Marenzelleria sp. (Annelida: Spionidae)
FIGURE 3. The distribution and morphology of Marenzelleria viridis from European waters. A, map showing records of M. viridis from European waters based on morphology (circles) and molecular data (triangles); new record from the Oslofjord, Norway, is marked by a rhomb; see Table 1 and Table S1 for details. B, M. viridis from Idefjorden, Sweden; photo by Fredrik Pleijel; see VIR 24704 in Table S1 for details.
FIGURE 6 in A review of the worldwide distribution of Marenzelleria viridis, with new records for M. viridis, M. neglecta and Marenzelleria sp. (Annelida: Spionidae)
FIGURE 6. Marenzelleria sp. morphometric relationships. A, arithmetic difference between anterior position of hooded hooks in noto- and neuropodia (DHH-VHH) referring to the number of the first hook-bearing chaetiger) versus total number of chaetigers. B, arithmetic difference between anterior position of hooded hooks in noto- and neuropodia (DHH-VHH) versus distribution of branchiae (referring to the number of the last branchiate chaetiger). C, arithmetic difference between the number of last branchiate chaetiger and anterior position of hooded hooks in notopodia (Br-DHH) versus total number of chaetigers. D, arithmetic difference between the number of last branchiate chaetiger and anterior position of hooded hooks in notopodia (Br- DHH) versus distribution of branchiae. E, arithmetic difference between the number of last branchiate chaetiger and anterior position of hooded hooks in neuropodia (Br-VHH) versus total number of chaetigers. F, arithmetic difference between the number of last branchiate chaetiger and anterior position of hooded hooks in neuropodia (Br-VHH) versus distribution of branchiae. Correlation coefficients (r) and their significance are reported in Table S7.
FIGURE 2 in A review of the worldwide distribution of Marenzelleria viridis, with new records for M. viridis, M. neglecta and Marenzelleria sp. (Annelida: Spionidae)
FIGURE 2. Map showing type localities (stars) and/or records of Marenzelleria arctia, M. bastropi, M. neglecta, M. viridis, and Marenzelleria sp. from North America based on morphology (circles, rhomb) and molecular data (triangles). See Table 1 and Tables S1−S5 for details.
FIGURE 1 in A review of the worldwide distribution of Marenzelleria viridis, with new records for M. viridis, M. neglecta and Marenzelleria sp. (Annelida: Spionidae)
FIGURE 1. Majority rule consensus tree of the Bayesian inference analysis of the combined COI (564 bp) and 16S (307 bp) sequences (871 bp in total) of Marenzelleria spp. rooted with sequences of Malacoceros fuliginosus. Posterior probabilities are shown on the branches. Ma, Mb, Mn, Mv, and Mw denote haplotypes of Marenzelleria arctia, M. bastropi, M. neglecta, M. viridis, and M. wireni, respectively, reported by Bastrop & Blank (2006), Blank et al. (2008), and Blank & Bastrop (2009). WS followed by numbers refer to the voucher specimens deposited at the ZMMU_WS collection. The other two capital letters are followed by the six-digit GenBank accession numbers. The numbers without letters preceding collecting locations are unique numbers from the VIR database linking the individuals on the tree with the sampling data in Table 1 and Table S1; numbers of individuals are separated from sample numbers by dots. Marenzelleria species of Arctic origin are shown in blue; species of Northwest Atlantic origin are shown in purple; specimens from the Oslofjord (Norway) are shown in red.
FIGURE 4 in A review of the worldwide distribution of Marenzelleria viridis, with new records for M. viridis, M. neglecta and Marenzelleria sp. (Annelida: Spionidae)
FIGURE 4. Morphology of Marenzelleria sp. from Koluktoo Bay (Baffin Is., Nunavut, Canada). A–D, anterior ends, dorsal view. E, bidentate hooded hook from a neuropodium of a middle chaetiger. Arrows showing posterior ends of U-shaped nuchal organs. Scale bars: A – 300 µm; B, C – 200 µm; D – 50 µm; E – 5 µm. A–E – formalin-fixed specimens. A – MIMB 40927; B, D – MIMB 42134; C, E – MIMB 40928.
FIGURE 5 in A review of the worldwide distribution of Marenzelleria viridis, with new records for M. viridis, M. neglecta and Marenzelleria sp. (Annelida: Spionidae)
FIGURE 5. Marenzelleria sp. morphometric relationships. A, nuchal organs length versus total number of chaetigers. B, number of pygidial cirri versus total number of chaetigers. C, last branchiate chaetiger versus total number of chaetigers. D, percentage of branchiate chaetigers versus total number of chaetigers. E, anterior position of sabre chaetae and hooded hooks in noto- and neuropodia (referring to the number of the first sabre- and hook-bearing chaetiger) versus total number of chaetigers. F, anterior position of hooded hooks in noto- and neuropodia (referring to the number of the first hook-bearing chaetiger) versus distribution of branchiae (referring to the number of the last branchiate chaetiger). Correlation coefficients (r) and their significance are reported in Table S7.
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