Telothelepodidae, Nogueira, Fitzhugh & Hutchings, 2013

Lavesque, Nicolas, Londoño-Mesa, Mario H., Daffe, Guillemine & Hutchings, Pat, 2020, A revision of the French Telothelepodidae and Thelepodidae (Annelida Terebelliformia), with descriptions of three species and first European record of a non-indigenous species, Zootaxa 4810 (2), pp. 305-327 : 324-325

Key to European species of Telothelepodidae and Thelepodidae

1A. Upper lip expanded; neuropodia poorly developed, beginning from S11….............................................................................................. Parathelepus collaris (Southern, 2014) (Telothelepodidae)

1B. Upper lip compact…..................................................................... 2 ( Thelepodidae )

2A. Notopodia from SG2........................................................................ 3 ( Streblosoma )

2B. Notopodia from SG3................................................................................... 9

3A. Two pairs of branchiae…......................................................... Streblosoma lindsayae n. sp.

3B. Three pairs of branchiae….............................................................................. 4

4A. Uncini arranged in C-shaped loops from mid thorax…........................................................ 5

4B. Uncini not arranged in C-shaped loops….................................................................. 7

5A. Notopodia not extending until posterior body…............................................................. 6

5B. Notopodia until posterior body............................. … Streblosoma pseudocomatus Lezzi & Giangrande, 2019

6A. Eyespots absent…........................................... Streblosoma hutchingsae Lezzi & Giangrande, 2019

6B. Eyespots present…............................................. Streblosoma nogueirai Lezzi & Giangrande, 2019

7A. Branchiae on SG3 and SG4 with 3 or less filaments................ … Streblosoma intestinale M. Sars in G.O. Sars, 1872

7B. Branchiae on SG3 and SG4 with 5–10 filaments…........................................................... 8

8A. Small lateral crest on SG2, absence of branchial cushion, uncini with strongly curved base and two rows of secondary teeth............................................................................. … Streblosoma cabiochi n. sp.

8B. Protruding lateral crest on SG2, presence of branchial cushion, uncini with slightly curved base and three rows of secondary teeth…............................................................... Streblosoma bairdi ( Malmgren, 1866)

9A. Lateral lobes on S2–S4…............................................... Euthelepus setubalensis McIntosh, 1885

9B. Absence of lateral lobes....................................................................... 10 ( Thelepus )

10A. Two pairs of branchiae….............................................................................. 11

10B. Three pairs of branchiae................................................................................ 16

11A. Uncini in single rows throughout…...................................................................... 12

11B. Uncini in loops from SG14….............................................. Thelepus nucleolata ( Claparède, 1870)

12A. Notopodia present on 50-66% of body length…............................................................ 13

12B. Notopodia present on at least 90% of body length…......................................................... 14

13A. Eyespots absent…........................................................... Thelepus davehalli Jirkov, 2018

13B. Eyespots present…............................................................... Thelepus corsicanus n. sp.

14A. Eyespots present…................................................................................... 15

14B. Eyespots absent…............................................................ Thelepus marthae Jirkov, 2018

15A. Branchiae separated by inconspicuous medial gap, notopodia present on 95% of body length.................................................................................................. … Thelepus parapari Jirkov, 2018

15B. Branchiae separated by wide gap, notopodia present on 70% of body length…...... Thelepus cincinnatus ( Fabricius, 1780)

16A. Prow of uncini well developed; notch between the prow and dorsal button of the uncini well marked….......................................................................................... Thelepus triserialis ( Grube, 1855) 16B. Prow of uncini poorly developed; notch between the prow and dorsal button of the uncini poorly marked…............ 17

17A. Notopodia present on about 60% of body length..............................… Thelepus setosus ( Quatrefages, 1866)

17B. Notopodia present until end of body…...................................... Thelepus japonicus Marenzeller, 1884