Trochochaeta Levinsen 1883
Creators: name: Radashevsky, Vasily I.
name: Rizzo, Alexandra E.
name: Peixoto, Antonio J. M.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Spionida
Trochochaetidae
Trochochaeta

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
description: Published as part of Radashevsky, Vasily I., Rizzo, Alexandra E. & Peixoto, Antonio J. M., 2018, First record of Trochochaeta japonica (Annelida: Spionidae) in Brazil with identification key to species of the genus, pp. 566-578 in Zootaxa 4462 (4) on page 575, DOI: 10.11646/zootaxa.4462.4.8, http://zenodo.org/record/1441881