Trochochaeta Levinsen 1883
Description
Key to species of Trochochaeta Levinsen, 1883
1 Chaetiger 2 neuropodia with only long capillaries........................................................... 2
– Chaetiger 2 neuropodia with short capillaries and acicular spines.............................................. 4
2(1) Chaetiger 2 with smooth slender capillaries both in noto- and neuropodia. Occipital antenna present. Capillaries in notopodia maximum until chaetiger 10....................................................... T. watsoni Pettibone, 1976
– Chaetiger 2 notopodia without chaetae; neuropodia with smooth capillaries in anterior row, and spiral capillaries in posterior row and in inferior fascicle. Occipital antenna absent........................................................ 3
3(2) Capillaries in notopodia maximum until chaetiger 19. Pygidium with up to ten cirri............. T. carica (Birula, 1897)
– Capillaries in notopodia maximum until chaetiger 15. Pygidium with up to eight cirri......... T. pettiboneae Dean, 1987
4(1) Chaetiger 2 notopodia with smooth slender capillaries....................................................... 5
– Chaetiger 2 notopodia without chaetae................................................................... 6
5(4) Occipital antenna absent. Capillaries in notopodia maximum until chaetiger 9. Noto- and neuropodial postchaetal lamellae of some anterior chaetigers cirriform................................................. T. cirrifera (Hartman, 1975 )
– Occipital antenna present. Capillaries in notopodia maximum until chaetiger 13. Noto- and neuropodial postchaetal lamellae of some anterior segments serrated or fimbriated.................................. Trochochaeta sp. A Gilbert, 1984
6(4) Occipital antenna absent. Capillaries in notopodia at least until chaetiger 20. Postchaetal lamellae on anterior chaetigers (at least from chaetiger 3 to about chaetiger 15) serrated. Caruncle extending to end of chaetiger 1...................... 7
– Occipital antenna present. Capillaries in notopodia maximum until chaetiger 10. Postchaetal lamellae on anterior chaetigers entire, smooth. Caruncle extending to end of chaetigers 1–3................................................... 8
7(6) Notopodial postchaetal lamellae of chaetigers 1 and 2 conical, entire. Capillaries in notopodia maximum until chaetiger 20. Ventral paired papillae from about chaetiger 20..................................... T. multisetosa (Örsted, 1843)
– Notopodial postchaetal lamellae of chaetigers 1 and 2 conical, entire, bifid or trifid. Capillaries in notopodia maximum until chaetiger 25. Ventral paired papillae from chaetigers 40–44.......................... T. franciscana (Hartman, 1947)
8(6) Caruncle extending to end of chaetiger 3.................................................................. 9
– Caruncle not extending beyond chaetiger 2............................................................... 10
9(8) Occipital antenna long, cirriform............................................... T. diverapoda (Hoagland, 1920)
– Occipital antenna short, subtriangular............................................ T. kirkegaardi Pettibone, 1976
10(8) Ventral paired papillae absent............................. T. mexicana Hernández-Alcántara & Solís-Weiss, 2011
– Ventral paired papillae present......................................................................... 11
11(10) Caruncle extending to end of chaetiger 1............................................. T. japonica Imajima, 1989
– Caruncle extending to end of chaetiger 2....................................... T. ankeae Bochert & Zettler, 2013
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Trochochaetidae
- Genus
- Trochochaeta
- Kingdom
- Animalia
- Order
- Spionida
- Phylum
- Annelida
- Scientific name authorship
- Levinsen
- Taxon rank
- genus
- Taxonomic concept label
- Trochochaeta Levinsen, 1883 sec. Radashevsky, Rizzo & Peixoto, 2018
References
- Levinsen, G. M. R. (1883) Systematisk-geografisk-Oversigt over de nordiske Annulata, Gephyrea, Chaetognathi og Balanoglossi. Fidenskabelige Meddelelser fra den Naturhistoriske Forening i KJObenhavn, 1883, 92 - 350.
- Pettibone, M. H. (1976) Contribution to the polychaete family Trochochaetidae Pettibone. Smithsonian Contributions to Zoology, 230, 1 - 21. https: // doi. org / 10.5479 / si. 00810282.230
- Orsted, A. S. (1843) Annulatorum danicorum conspectus. Fasc. I. Maricolae. Sumtibus Librariae Wahlianae, Havniae [Copenhagen], 52 pp.
- Hartman, O. (1947) Disoma franciscanum, a new marine annelid from California. Journal of the Washington Academy of Sciences, 37 (5), 160 - 169.
- Hernandez-Alcantara, P. & Solis-Weiss, V. (2011) Trochochaeta mexicana, a new species from an unusual family of Polychaeta, with comments on the world distribution of Trochochaetidae. Journal of the Marine Biological Association of the United Kingdom, 91 (2), 403 - 413. https: // doi. org / 10.1017 / s 002531541000144 X
- Imajima, M. (1989) A new species of Trochochaeta (Polychaeta, Trochochaetidae) from Japan. Bulletin of the National Science Museum, Tokyo, Series A (Zoology), 15 (3), 139 - 146.
- Bochert, R. & Zettler, M. L. (2013) A record of the genus Trochochaeta (Polychaeta) in the southern hemisphere with description of a new species. Journal of the Marine Biological Association of the United Kingdom, 93 (4), 967 - 972. https: // doi. org / 10.1017 / s 0025315412001142