235 research outputs found
Another piece for the syllid puzzle: A new species from Japan and its mitochondrial genome reveal the enigmatic Clavisyllis (Phyllodocida: Syllidae) as a member of Eusyllinae
No full textCejp, Benjamin, Jimi, Naoto, Aguado, M. Teresa (2023): Another piece for the syllid puzzle: A new species from Japan and its mitochondrial genome reveal the enigmatic Clavisyllis (Phyllodocida: Syllidae) as a member of Eusyllinae. Zootaxa 5244 (4): 341-360, DOI: 10.11646/zootaxa.5244.4.2, URL: http://dx.doi.org/10.11646/zootaxa.5244.4.
Lamispina Salazar-Vallejo 2014
No full textGenus Lamispina Salazar-Vallejo, 2014 [New Japanese name: sasanoha-habouki-zoku]Published as part of Jimi, Naoto & Kajihara, Hiroshi, 2018, A New Species, Lamispina ammophila sp. nov. (Annelida: Flabelligeridae), from Shimoda, Japan, pp. 39-42 in Species Diversity 23 (1) on page 39, DOI: 10.12782/specdiv.23.39, http://zenodo.org/record/458395
Leocratides (Annelida: Hesionidae) from the Pacific Coast of Middle Honshu, Japan, with a Description of Leocratides kimuraorum sp. nov.
No full textJimi, Naoto, Tanaka, Masaatsu, Kajihara, Hiroshi (2017): Leocratides (Annelida: Hesionidae) from the Pacific Coast of Middle Honshu, Japan, with a Description of Leocratides kimuraorum sp. nov. Species Diversity 22: 133-141, DOI: 10.12782/sd.22_13
A New Species of Polyodontes (Annelida: Acoetidae) from Western Japan
No full textJimi, Naoto, Tomioka, Shinri, Orita, Ryo, Kajihara, Hiroshi (2019): A New Species of Polyodontes (Annelida: Acoetidae) from Western Japan. Species Diversity 24 (2): 275-279, DOI: 10.12782/specdiv.24.275, URL: http://dx.doi.org/10.12782/specdiv.24.27
FIGURE 9 in Unearthing the diversity of Japanese Magelona (Annelida: Magelonidae); three species new to science, and a redescription of Magelona japonica
No full textFIGURE 9. Known distribution records for Magelona japonica.Published as part of Taylor, Abbie, Mortimer, Kate & Jimi, Naoto, 2022, Unearthing the diversity of Japanese Magelona (Annelida: Magelonidae); three species new to science, and a redescription of Magelona japonica, pp. 451-491 in Zootaxa 5196 (4) on page 466, DOI: 10.11646/zootaxa.5196.4.1, http://zenodo.org/record/723561
Description of Pericelis flavomarginata sp. nov. (Polycladida: Cotylea) and its predatory behavior on a scaleworm
No full textTsuyuki, Aoi, Oya, Yuki, Jimi, Naoto, Kajihara, Hiroshi (2020): Description of Pericelis flavomarginata sp. nov. (Polycladida: Cotylea) and its predatory behavior on a scaleworm. Zootaxa 4894 (3): 403-412, DOI: https://doi.org/10.11646/zootaxa.4894.3.
Fig. 1 in A New Species, Lamispina ammophila sp. nov. (Annelida: Flabelligeridae), from Shimoda, Japan
No full textFig. 1. Photographs of Lamispina ammophila sp. nov. in preserved state. A, B, D, E, Holotype, NSMT-Pol H-663; C, paratype, NSMT-Pol P-664. A, Anterior end, ventral view; B, anterior end, dorsal view; C, prostomium (BS, branchial scar; Ca, caruncle; LL, lateral lip; PS, palp scar; black arrows, nephridial lobe); D, palp; E, branchia. Scale bars: A–B, 1 mm; C–E, 250 µm.Published as part of Jimi, Naoto & Kajihara, Hiroshi, 2018, A New Species, Lamispina ammophila sp. nov. (Annelida: Flabelligeridae), from Shimoda, Japan, pp. 39-42 in Species Diversity 23 (1) on page 40, DOI: 10.12782/specdiv.23.39, http://zenodo.org/record/458395
Lamispina ammophila Jimi & Kajihara 2018, sp. nov.
No full textLamispina ammophila sp. nov. [New Japanese name: suna-sasanoha-habouki] (Figs 1, 2) Material examined. Holotype: NMST-Pol H-663, anterior fragment, 4 mm long, 1 mm wide (widest chaetiger), 17 chaetigers, sex unknown, off Shimoda, 45–46m depth, 13 November 2015, collected by NJ; although the last two chaetigers were removed for observation and DNA extraction, any gene sequences could not be determined from those chaetigers. Paratypes: NSMT-Pol P-664, 10 specimens, anterior fragments, 2–6 mm long, 1 mm wide (widest chaetiger), 8–20 chaetigers, sex unknown, off Shimoda, 45–46 m depth, 13 November 2015, collected by NJ; the last two chaetigers and palps of one specimen were removed for DNA extraction. Sequence. LC363891, COI gene, 651 bp, determined from the paratype (NSMT-Pol P-664). Description. Holotype 4 mm long, 1 mm wide (widest chaetiger), 17 chaetigers (not complete). Body cylindrical, tapered in posterior region, greenish in life, yellowish aΠer fixation (Fig. 1A). Dorsal body surface with sparse sand particles (Fig. 1B), ventral side without sand particles (Fig. 1A). Body papillae long, thin, digitate, sediment particles attached on base, 1/2 times as long as parapodial papillae. Gonopodial lobes not seen. Gonopores not seen. Prostomium low cone, red eyes present, caruncle developed, lateral lip expanded, dorsal and ventral lips not well developed (Fig. 1C). Palps short, thick, digitate, as long as branchiae (Fig. 1D). Branchiae arranged in a continuous dorsal series, eight in number, digitate, microcilia present on surface (Fig. 1E). Nephridial lobes present. Cephalic cage well developed, 1.5–2.0 times as long as body width (widest chaetiger). Chaetigers 1–3 comprise cephalic cage, cephalic cage consisting of about 4 notochaetae and 8 neurochaetae (some chaetae broken). Chaetal transition from cephalic cage to body chaetae abrupt (Fig. 1A). Parapodia poorly developed. Noto- and neuropodial low lobes, 1/3–3/4 times as long as neurochaetae, 2–4 times as long as body papillae, 5–7 internal papillae, 4–6 postchaetal papillae; 4–5 chaetae per notopodia, 3–4 chaetae per neuropodia. Notochaetae multiarticulated capillaries, brownish, with articles medium-sized basally, long medially and distally (Fig. 2A). Neurochaetae multiarticulated capillaries in chaetigers 1–3, brownish; anchylosed lamispines present in chaetiger 4 and succeeding posterior chaetigers, brownish, without accessory tooth, with articles medium-sized basally, slightly long medially (Fig. 2B, C). Posterior end unknown. Etymology. The specific name “ammophila” derives from ancient Greek α ˘ʹ’ μμoς ámmos (sand)+ φ ΄ῐ λoς phílos (loving, friendly), referring to the new species having sand particles on its body. Distribution. Only known from the type locality, Shimoda, Japan. 45–46 m in depth. Remarks. Lamispina ammophila sp. nov. is different from the other known species by the following features: i) sediment particles are adhered only to the dorsal region of the body, ii) lamispines are present in chaetiger 4 and backward, lacking accessory tooth, and iii) the cephalic cage is 1.5–2.0 times as long as the body width. The species resembles L. amoureuxi Salazar-Vallejo, 2014 in having sediment particles and lamispines without accessory tooth. While lamispines in L. ammophila sp. nov. emerge from chaetiger 4 and backward, they occur from chaetiger 2 in L. amoureuxi. The cephalic cage is 1.5–2.0 times as long as body width in L. ammophila sp. nov., it is as long as body in L. amoureuxi. The species also resembles L. gymnopapillata (Hartmann- Schröder, 1965) in that lamispines occur from chaetiger 4, but it differs from the latter in that sand particles adhere dorsally in L. ammophila sp. nov., whereas L. gymnopapillata does not carry sand particles.Published as part of Jimi, Naoto & Kajihara, Hiroshi, 2018, A New Species, Lamispina ammophila sp. nov. (Annelida: Flabelligeridae), from Shimoda, Japan, pp. 39-42 in Species Diversity 23 (1) on pages 39-41, DOI: 10.12782/specdiv.23.39, http://zenodo.org/record/458395
FIGURE 1 in Another piece for the syllid puzzle: A new species from Japan and its mitochondrial genome reveal the enigmatic Clavisyllis (Phyllodocida: Syllidae) as a member of Eusyllinae
No full textFIGURE 1. Phylogenetic maximum likelihood tree of Syllidae based on the concatenated dataset (genes 18S, 16S, COI). Bootstrap support (B) values are shown next to the nodes.Published as part of Cejp, Benjamin, Jimi, Naoto & Aguado, M. Teresa, 2023, Another piece for the syllid puzzle: A new species from Japan and its mitochondrial genome reveal the enigmatic Clavisyllis (Phyllodocida: Syllidae) as a member of Eusyllinae, pp. 341-360 in Zootaxa 5244 (4) on page 345, DOI: 10.11646/zootaxa.5244.4.2, http://zenodo.org/record/766356
FIGURE 7 in Two new species of Branchinotogluma (Polynoidae: Annelida) from chemosynthesis-based ecosystems in Japan
No full textFIGURE 7. Maximum-likelihood phylogenetic tree based on four gene sequences (COI, 16S, 18S, 28S). Nodal bootstrap support (BS) values higher than 50% are indicated for each branch.Published as part of Jimi, Naoto, Chen, Chong & Fujiwara, Yoshihiro, 2022, Two new species of Branchinotogluma (Polynoidae: Annelida) from chemosynthesis-based ecosystems in Japan, pp. 17-30 in Zootaxa 5138 (1) on page 26, DOI: 10.11646/zootaxa.5138.1.2, http://zenodo.org/record/655207
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