1. Species Synchelidium haplocheles (Grube, 1864)
2. Species Synchelidium intermedium G.O. Sars, 1892
3. Species Synchelidium longidigitatum Ruffo, 1947
4. Species Synchelidium longisegmentum Hirayama & Takeuchi, 1993
5. Species Synchelidium maculatum Stebbing, 1906
6. Species Synchelidium purpurivitellum Durham & White, 2023
7. Species Synchelidium tenuimanum Norman, 1895
8. Species Synchelidium trioostegitum Jo, 1990
9. Species Synchelidium americanum Bousfield, 1973 accepted as Americhelidium americanum (Bousfield, 1973) (unaccepted > superseded combination)
10. Species Synchelidium ampliforbicum Hirayama, 1992 accepted as Chitonomandibulum ampliforbicum (Hirayama, 1992)
11. Species Synchelidium brevicarpum (Spence Bate & Westwood, 1868) accepted as Synchelidium haplocheles (Grube, 1864) (junior subjective synonym)
12. Species Synchelidium bulytschevae Kudrjaschov & Tzvetkova, 1975 accepted as Eochelidium bulytschevae (Kudrjaschov & Tzvetkova, 1975)
13. Species Synchelidium carinorostrum Jo, 1990 accepted as Eochelidium carinorostrum (Jo, 1990)
14. Species Synchelidium gurjanovae Kudrjaschov & Tzvetkova, 1975 accepted as Americhelidium gurjanovae (Kudrjaschov & Tzvetkova, 1975) (unaccepted > superseded combination)
15. Species Synchelidium haplocheles Grube, 1864, sensu G.O. Sars, 1892 accepted as Synchelidium tenuimanum Norman, 1895 (unaccepted > misapplication)
16. Species Synchelidium lenorostralum Hirayama, 1986 accepted as Eochelidium lenorostralum (Hirayama, 1986) (unaccepted > superseded combination)
17. Species Synchelidium micropleon J.L. Barnard, 1977 accepted as Americhelidium micropleon (J.L. Barnard, 1977) (unaccepted > superseded combination)
18. Species Synchelidium miraculum Imbach, 1967 accepted as Eochelidium miraculum (Imbach, 1967) (unaccepted > superseded combination)
19. Species Synchelidium nonmiraculum Hirayama, 1992 accepted as Eochelidium nonmiraculum (Hirayama, 1992)
20. Species Synchelidium nonrostrum Hirayama, 1992 accepted as Eochelidium nonrostrum (Hirayama, 1992)
21. Species Synchelidium rectipalmum Mills, 1962 accepted as Americhelidium rectipalmum (Mills, 1962) (unaccepted > superseded combination)
22. Species Synchelidium rostriopiculum Hirayama, 1987 accepted as Eochelidium rostriopiculum (Hirayama, 1987) (unaccepted > superseded combination)
23. Species Synchelidium shoemakeri Mills, 1962 accepted as Americhelidium shoemakeri (Mills, 1962) (unaccepted > superseded combination)

marine, brackish, fresh, terrestrial

Sars, G.O. (1892). Amphipoda. Part XIV. Oediceridae (continued). An account of the Crustacea of Norway, with short descriptions and figures of all the species. I: 297-320, pls 105-112. Cammermeyer, Christiana (Oslo)., available online at https://www.biodiversitylibrary.org/page/10925968 [details] 

Horton, T.; Lowry, J.; De Broyer, C.; Bellan-Santini, D.; Copilas-Ciocianu, D.; Corbari, L.; Costello, M.J.; Daneliya, M.; Dauvin, J.-C.; Fišer, C.; Gasca, R.; Grabowski, M.; Guerra-García, J.M.; Hendrycks, E.; Hughes, L.; Jaume, D.; Jazdzewski, K.; Kim, Y.-H.; King, R.; Krapp-Schickel, T.; LeCroy, S.; Lörz, A.-N.; Mamos, T.; Senna, A.R.; Serejo, C.; Souza-Filho, J.F.; Tandberg, A.H.; Thomas, J.D.; Thurston, M.; Vader, W.; Väinölä, R.; Valls Domedel, G.; Vonk, R.; White, K.; Zeidler, W. (2025). World Amphipoda Database. Synchelidium G.O. Sars, 1892. Accessed at: https://www.marinespecies.org/amphipoda/aphia.php?p=taxdetails&id=101704 on 2025-05-13

[taxonomic tree]