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51 results for “Chaetopteridae”
Fig. 5 in Hidden in plain sight, Chaetopterus dewysee sp. nov. (Chaetopteridae, Annelida) - A new species from Southern California
Fig. 5. Maximum likelihood tree of Chaetopterus Cuvier, 1830 spp. COI sequences with the Mesochaetopterus Potts, 1914 clade as outgroup, based on Moore et al. (2017). Only bootstrap supports> 80 are shown. The new species Chaetopterus dewysee sp. nov. and C. variopedatus (Renier, 1804) from the type locality are in bold. Number of sequences included for each terminal is in brackets. Details on sequences that were analyzed can be found in Table 1. Haplotype network for the nine Chaetopterus dewysee sp. nov. sequences is shown next to the tree.
Fig. 4 in Hidden in plain sight, Chaetopterus dewysee sp. nov. (Chaetopteridae, Annelida) - A new species from Southern California
Fig. 4. Chaetopterus dewysee sp. nov. micro-CT surface renderings of the cybertype (SIO-BIC A12034). A. Dorsal view of the whole specimen. B. Lateral view of the whole specimen. C. Frontal view with virtual dissection planes (I–III) showing cross-sections along the body. D–E. Lateral view with a virtual dissection window showing the parapodial musculature of region A. Direct link to cybertype: www.morphdbase.de/?E_Tilic_20200122-S-5.1
Fig. 2 in Hidden in plain sight, Chaetopterus dewysee sp. nov. (Chaetopteridae, Annelida) - A new species from Southern California
Fig. 2. Chaetopterus dewysee sp. nov. A. Habitus of a paratype (SIO-BIC A11653). B–C. Anterior region A, chaetigers are numbered a1–10. D–E. Details of chaetiger a4 cutting chaetae; * marks a developing cutting chaeta. p = palps, ey = eyes, cg = ciliated groove, nt = notopodium.
Fig. 2 in A new species of Chaetopterus (Annelida: Chaetopteridae) from eastern Canada, with a redescription of Chaetopterus norvegicus M. Sars, 1835
Fig. 2. Chaetopterus bruneli sp. nov. A. Latero-dorsal view of holotype CMNA 2015-0016. B. The same in ventral view. C. A4 notopodium of paratype CMNA 2015-0010; white arrow: simple terminal notochaetae, grey arrow: lanceolate simple chaetae, black arrow: stout specialised cutting chaetae. D. In situ tube of Chaetopterus bruneli sp. nov. in the St. Lawrence Estuary at a depth of 350 m, specimen not collected. E–J. Uncini sampled from paratype specimen CMNA 2015-0018. E. Uncinus of B1 anterior neuropodial lobe. F. Uncinus of B1 posterior lobe. G. Uncinus of B3 piston torus. H. Uncinus of B3 ventral lobe. I. Uncinus of C1 lateral lobe. J. Uncinus of C1 ventral lobe. Scale bars: A–B = 5 mm; C = 200 µm; D = 1 cm approx.; E–J = 20 µm.
Figure 12 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 12. Mesochaetopterus rogeri sp. nov., seasonal pattern in abundance at Punta del Tordera, in relation to water temperature and wave height. A, Water temperature at 20-m deep and significant wave height. B, Population density.
Figure 11. Mesochaetopterus xerecus. A, Dorsalmost uncini from neuropodia B1. B, Ventralmost uncini from neuropodia B1. C, Uncini from notopodia B2. D, Uncini from neuropodia B2. E, Uncini from notopodia B3. F, Uncini from neuropodia B3. G in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 11. Mesochaetopterus xerecus. A, Dorsalmost uncini from neuropodia B1. B, Ventralmost uncini from neuropodia B1. C, Uncini from notopodia B2. D, Uncini from neuropodia B2. E, Uncini from notopodia B3. F, Uncini from neuropodia B3. G, Uncini from the anterior region of notopodia C2. H, Uncini from the posterior region of notopodia C2. I, Uncini from the anterior region of neuropodia C2. J, Uncini from the posterior region of neuropodia C2. K, Uncini from notopodia C30. L, Uncini from neuropodia C30. Scale bars are in Mm.
Figure 10. Mesochaetopterus xerecus. A in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 10. Mesochaetopterus xerecus. A, Chaetal arrangement of the modified A4 chaetiger. B–J, Chaetae. B, Tip of the dorsal finely pointed lancet-like chaeta 'd'. C, Dorsolateral transparent knife-like chaeta 'ld1'. D, Dorsolateral transparent knife-like chaeta 'ld2'. E, Dorsolateral brownish knife-like chaeta 'ld3'. F, Lateroventral brownish knife-like chaeta 'ld3'. G, H, I, Typical modified chaetae: lv2, lateral; lv3, lateroventral; v, ventralmost. J, Tip for the ventralmost modified chaeta 'v'. Scale bars are in Mm.
Figure 9. Mesochaetopterus xerecus. A, Dorsalmost capillary chaeta from A8. B in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 9. Mesochaetopterus xerecus. A, Dorsalmost capillary chaeta from A8. B, Dorsolateral fine-lanceolate chaeta from A8. C, Lateroventral sickle-like chaeta from A8. D, Tip of the lateroventral sickle-like chaeta from A8. E, Ventralmost lancet-like chaeta from A8. F, Tip of the ventralmost lancet-like chaeta from A8. G, Ventralmost sickle-like chaeta from A10. Scale bars are in Mm.
Figure 7. Mesochaetopterus xerecus. A in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 7. Mesochaetopterus xerecus. A, Dorsal view of region A (preserved). B, Ventral view of region A (preserved). C–J, Chaetae. C, Dorsalmost capillary chaeta from A1. D, Dorsolateral fine-lanceolate chaeta from A1. E, Ventral oar-like chaeta from A1. F, Tip of the ventral oar-like chaeta from A1. G, Dorsalmost fine-lanceolate chaeta from A3. H, Tip of the dorsalmost fine-lanceolate chaeta from A3. I, Ventral oar-like chaeta from A3. J, Tip of the ventral oar-like chaeta from A3. Scale bars are in cm in A and B, and are in Mm in C–J.
Figure 6 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 6. Mesochaetopterus rogeri sp. nov. A, Dorsalmost uncini from neuropodia B1. B, Ventralmost uncini from neuropodia B1. C, Uncini from notopodia B2. D, Uncini from neuropodia B2. E, Uncini from notopodia B3. F, Uncini from neuropodia B3. G, Uncini from the anterior region of notopodia C2. H, Uncini from the posterior region of notopodia C2. I, Uncini from the anterior region of neuropodia C2. J, Uncini from the posterior region of neuropodia C2. Scale Bars are in Mm.
Figure 3 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 3. Individual gene trees generated by Bayesian inference for 18S rRNA (A), cytochrome oxidase I (COI) (B), and by combining both genes (C). Only posterior probability node support values greater than 0.75 were represented. Med, Mediterranean; NS, North Sea.
Figure 5 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 5. Mesochaetopterus rogeri sp. nov. A, Chaetal arrangement of the modified A4 chaetiger. B–L, Chaetae. B, Tip of the dorsal finely pointed capillary chaeta 'd'. (C) Dorsolateral transparent knife-like chaeta 'ld1'. D, Tip of the dorsolateral transparent knife-like chaeta 'ld1'. E, Dorsolateral brownish knife-like chaeta 'ld2'. F, Tip of the dorsolateral brownish knife-like chaeta 'ld2'. G, I, K, Whole view of the typical modified chaetae 'lv1' (lateral), 'lv2' (lateroventral), and 'v' (ventralmost). H, J, L, Tips of G, I, K, respectively. Scale bars are in Mm.
Figure 4 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 4. Mesochaetopterus rogeri sp. nov. A, Dorsalmost capillary chaeta from A1. B, Tip for the dorsalmost capillary chaeta from A1. C, Dorsal fine-lanceolate chaeta from A1. D, Tip of the dorsal fine-lanceolate chaeta from A1. E, Ventral oar-like chaeta from A1. F, Tip of the ventral oar-like chaeta from A1. G, Ventral oar-like chaeta from A3. H, Tip of the ventral oar-like chaeta from chaetiger A3. I, Dorsal fine-lanceolate chaeta from A8. J, Tip of the dorsal fine-lanceolate chaeta from A8. K, Ventral sickle-like chaeta from A8. L, Tip of the ventral sickle-like chaeta from A8. Scale bars are in Mm.
Figure 2 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family
Figure 2. Mesochaetopterus rogeri sp. nov., location of reports. A, Iberian Peninsula. B, Catalan coast. C, Blanes litoral. Key:, seasonal monitoring at the Punta del Tordera; 1, Almería; 2, Alicante; 3, Valencia.
Fig. 7 in Loss of complexity from larval towards adult nervous systems in Chaetopteridae (Chaetopteriformia, Annelida) unveils evolutionary patterns in Annelida
Fig. 7 The anterior adult nervous system of Phyllochaetopterus sp. revealed by immunohistochemistry. a, b confocal maximum projections of anti-5HT-staining. a: The brain (br) consists of a compact neuropil without prominent commissures. The palp nerves (pn1, pn2)
Fig. 8 in Loss of complexity from larval towards adult nervous systems in Chaetopteridae (Chaetopteriformia, Annelida) unveils evolutionary patterns in Annelida
Fig. 8 Representative larval and juvenile stages of Chaetopterus variopedatus. Light microscopic images. Stages are shown in hours (hpf) or days past fertilization (dpf). a: 48 hpf, the larvae are still spherical and possess a prominent apical tuft (at) at the anterior end. b: 13 dpf, the larvae exhibit an elongated body, with prominent apical eyespots (ey) and distinct chaetal bundles (ch). mo: mouth opening. c:> 50 dpf,
Fig. 4 in Loss of complexity from larval towards adult nervous systems in Chaetopteridae (Chaetopteriformia, Annelida) unveils evolutionary patterns in Annelida
Fig. 4 Adult ultrastructure of the nervous system. a: The brain is intraepidermal; i.e., the neurites (ne) are located dorsal to the basal lamina (bl). Intermediate filaments (if) are located inside radial glial cell processes (gcp) which cross the neuropil perpendicularly. mu: musculature. b: Somata (so) of neurons are located dorsal to the neurites (ne). Nuclei (nu) of neuronal somata are spherical. Somata of glial cells (sogc) are interspersed between the neuronal somata (so).
Fig. 2 in Loss of complexity from larval towards adult nervous systems in Chaetopteridae (Chaetopteriformia, Annelida) unveils evolutionary patterns in Annelida
Fig. 2 Adult histology of the cns. Azan, 5 µm, sections of anterior body region A (according to chaetopterid nomenclature). a, c, e: Spiochaetopterus costarum; b, d, f: Chaetopterus norvegicus. a: the brain (br) is located inside the epidermis (ep). It is composed of a neuropil (np) and dorsally located neuronal somata (so). Lateral of the brain, the lateral medullary cords (lmc) branch of. bl: basal lamina; eso: esophagus. b: The brain (br) is intraepidermal. The somata (so) layer is located dorsally to the neuropil (np). An esophageal plexus (epl) connects both medullary cords continuously. bl: basal lamina; ep: epidermis; eso: esophagus; c: somata (so) of the neuro-
Linked collectors and determiners for: A new species of Chaetopterus (Annelida: Chaetopteridae) from eastern Canada, with a redescription of Chaetopterus norvegicus M. Sars, 1835.
Natural history specimen data linked to collectors and determiners held within, "A new species of Chaetopterus (Annelida: Chaetopteridae) from eastern Canada, with a redescription of Chaetopterus norvegicus M. Sars, 1835". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/fc802397-f995-4145-93d7-fee098887602">https://bionomia.net/dataset/fc802397-f995-4145-93d7-fee098887602</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/fc802397-f995-4145-93d7-fee098887602">https://gbif.org/dataset/fc802397-f995-4145-93d7-fee098887602</a>. Formatted as a Frictionless Data package.
Figure 9 in Scale-worms (Polychaeta, Polynoidae) associated with chaetopterid worms (Polychaeta, Chaetopteridae), with description of a new genus and species
Figure 9. Number of symbiotic polychaete species associated with Chaetopteridae in relation with the number of species of the four currently known genera of the family.
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