Diplocirrus Haase 1915

• Main Author: Salazar-Vallejo, Sergio I.
• Format: Text
• Language: unknown
• Published: Zenodo 2020
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Flabelligeridae; Diplocirrus; Pacific; Norway; Queensland; Scripps; Malmgren; Darbyshire; Arktis*
• Online Access: https://dx.doi.org/10.5281/zenodo.4329966; https://zenodo.org/record/4329966

Key to species of Diplocirrus Haase, 1915, restricted (modified from Jimi et al. 2017) 1 Body papillae abundant, short, giving a velvety appearance.................................................... 2 - Body papillae scarce, long, tunic looks bare............................................ Diplocirrus sp. Sri Lanka 2(1) Body without sand particles............................................................................. 3 - Body with sand particles.............................................................................. 11 3(2) Ventrolateral gonopores present in some anterior chaetigers.................................................... 4 - Ventrolateral gonopores absent........................................................................... 9 4(3) First chaetiger with long chaetae, about half as long as body width; caruncle posteriorly expanded.......................................................................................... D. erythroporus Gallardo, 1968 Vietnam - Anterior end with short chaetae, 1/3–1/5 as long as body width; caruncle posteriorly tapered......................... 5 5(4) Branchiae with lamellae............................................................................... 6 - Branchia without lamellae.............................................................................. 7 6(5) Median chaetigers with neurochaetae tapered, 22–25 articles, and tip delicately falcate; cirriform branchiae with lamellae along basal 1/4–1/5 of each filament............................................ D. branchiatus (Rullier, 1965) Australia - Median chaetigers with neurochaetae barely tapered, 8–11 articles, and tip markedly falcate; cirriform branchiae with lamellae along basal 1/3–1/2 of each filament.................................. D. nicolaji (Buzhinskaja, 1994) Russia, Japan 7(5) Dorsal branchiae as long as ventral ones; caruncle shorter than palp scar... D. mamoi Jimi, Fujiwara & Kajihara, 2017 Japan - Dorsal branchiae shorter than ventral ones; caruncle longer than palp scar............................................................................................... D. asamushiensis Jimi, Fujiwara & Kajihara, 2017 Japan 8(3) Papillae digitate, longer than wide; chaetiger 1 with notochaetae fragile, if complete, as long as body width.............. 9 - Papillae hemispherical, about as long as wide; cephalic cage chaetae shorter than body width....................... 10 9(8) Median chaetigers with neurochaetae with articles slightly longer than wide; body brownish................................................................................................. D. capensis Day, 1961 South Africa – Median chaetigers with neurochaetae with articles 4–6 times longer than wide; body yellowish................................................................................... D. imajimai Jimi, Fujiwara & Kajihara, 2017 Japan 10(8) Median chaetigers with 5–6 neurochaetae, shorter than notochaetae, with articles 2.0–2.5 times longer than wide.................................................... D. kudenovi Salazar-Vallejo & Buzhinskaja, 2011 Eastern Pacific Ocean - Median chaetigers with 2–3 neurochaetae, about as long as notochaetae, with articles 7–8 times longer than wide........................................................... D. stopbowitzi Darbyshire & Mackie, 2009 Southern Irish Sea 11(2) Anterior chaetigers barely wider than following ones........................................................ 12 - Anterior chaetigers swollen, much wider than following ones................................................. 13 12(11) Some lateral papillae twice as long as in chaetal lobes................. D. rugosus Teixeira, Rizzo & Santos, 2015 Brazil - Lateral papillae shorter.............................................................. Diplocirrus sp. Morocco 13(11) Lateral papillae 1/25–1/5 as long as longest notochaetae..................................................... 14 - Lateral papillae 1/3–5/6 as long as longest notochaetae...................................................... 18 14(13) Ventrolateral gonopores present........................................................................ 15 - Ventrolateral gonopores absent......................................................................... 16 15(14) Cephalic cage well developed (2/3 as long as body width)............. D. ohtsukai Jimi, Fujiwara & Kajihara, 2017 Japan - Cephalic cage poorly developed (1/4 as long as body width)....... D. salazarvallejoi Teixeira, Rizzo & Santos, 2015 Brazil 16(14) Cephalic cage well developed (as long as body width)....................................................... 17 - Cephalic cage poorly developed (1/3 as long as body width)......... D. tohokuensis Jimi, Fujiwara & Kajihara, 2017 Japan 17(16) Neurochaetal rounded projection present in each article............ D. toyoshioae Jimi, Fujiwara & Kajihara, 2017 Japan - Neurochaetal rounded projection absent..................................... D. glaucus (Malmgren, 1867) Norway 18(13) Lateral papillae in chaetal lobe short (1/3 as long as notochaeta); anterior part (roughly corresponding to chaetigers 1–3) not pigmented............................................... D. incognitus Darbyshire & Mackie, 2009 South Africa - Lateral papillae in chaetal lobe long (5/6 as long as notochaeta); anterior part (chaetigers 1–3) with rusty pigments.................................................................... D. seisuiae Jimi, Fujiwara & Kajihara, 2017 Japan : Published as part of Salazar-Vallejo, Sergio I., 2020, Four new deep-water flabelligerid species from Pacific Costa Rica (Annelida Sedentaria, Flabelligeridae), pp. 560-578 in Zootaxa 4885 (4) on pages 565-566, DOI: 10.11646/zootaxa.4885.4.6, http://zenodo.org/record/4296955 : {"references": ["Haase, P. (1915) Boreale und arktisch Chloraemiden. Wissenschaftliche Meeresuntersuchungen der Kommission zur Wissenschaftlichen Untersuchung der Deutschen Meere, Neue Folge, Kiel, 17, 169 - 228.", "Jimi, N., Fujiwara, Y. & Kajihara, H. (2017) Remarkable biodiversity of flabelligerids in Japan: seven new species of Diplocirrus (Annelida: Flabelligeridae) from Japanese waters. Zootaxa, 4337 (3), 344 - 360. https: // doi. org / 10.11646 / zootaxa. 4337.3.2", "Gallardo, V. A. (1968 (1967 )) Polychaeta from the Bay of Nha Trang, South Viet Nam. Scientific Results of Marine Investigations of the South China Sea and the Gulf of Thailand, 1959 - 1961. Scripps Institution of Oceanography NAGA Report, 4, 35 - 279.", "Rullier, F. (1965) Contribution a la faune des annelides polychetes de l'Australie. University of Queensland Papers, Department of Zoology, 2 (9), 163 - 201.", "Buzhinskaja, G. N. (1994 (1993 )) Diversibranchius nicolaji gen. et sp. n. from the Sea of Japan with unique branchial structure (Polychaeta: Flabelligeridae). Zoosystematica Rossica, 2, 229 - 231.", "Day, J. H. (1961) The Polychaeta Fauna of South Africa, 6. Sedentary species dredged off Cape coast with a few new records from the shore. Zoological Journal of the Linnean Society, London, 44, 463 - 560. https: // doi. org / 10.1111 / j. 1096 - 3642.1961. tb 01623. x", "Salazar-Vallejo, S. I. & Buzhinskaja, G. (2011) Revision of Diplocirrus Haase, 1915, including Bradiella Rullier, 1965, and Diversibranchus Buzhinskaja, 1993 (Polychaeta, Flabelligeridae). ZooKeys, 106, 1 - 45. https: // doi. org / 10.3897 / zookeys. 106.795", "Darbyshire, T. & Mackie, A. S. Y. (2009) Two new species of Diplocirrus (Polychaeta: Flabelligeridae) from the southern Irish Sea and South Africa. Zoosymposia, 2, 91 - 103. https: // doi. org / 10.11646 / zoosymposia. 2.1.9", "Teixeira, J. H., Rizzo, A. E. & Santos, C. S. G. (2015) Three new species of Diplocirrus Haase, 1915 (Polychaeta: Flabelligeridae) from Campos Basin in SE Brazil. Zootaxa, 4027, 287 - 295. https: // doi. org / 10.11646 / zootaxa. 4027.2.8", "Malmgren, A. J. (1867) Annulata Polychaeta: Spetsbergiae, Groenlandiae, Islandiae et Scandinaviae. Hactenus Cognita. Kongelige Vetenskaps-Akademiens Forhandlingar, 1867 (4), 127 - 235, pls. 2 - 15. https: // doi. org / 10.5962 / bhl. title. 13358"]}