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Figure 13. Marionina fusca. A in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 13. Marionina fusca. A, chaetalbundle (CE12478). B, anterior part of body (CE12478). C, spermatheca (CE12478). D, nephridia (holotype). E, spermatheca (CE12476). F, genitalia (holotype). Abbreviations are defined under 'Taxonomy'. Scale bars: 100 μm.

Figure 1 in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 1. Majority-rule consensus tree for COI estimated with Bayesian inference. Specimens shaded in grey are from the Southern Hemisphere. Specimens in bold represent new species. Support values are posterior probabilities. Scale bar represents the estimated number of substitutions per site.

Figure 4. Lumbricillus antarcticus and Marionina colpites. A–C, L. antarcticus, sectioned specimen BMNH 1933.2.23.899. A, B, spermatheca. C, genitalia. D–F, M. colpites. D in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 4. Lumbricillus antarcticus and Marionina colpites. A–C, L. antarcticus, sectioned specimen BMNH 1933.2.23.899. A, B, spermatheca. C, genitalia. D–F, M. colpites. D, male pore and associated glands (BMNH 1933.2.23.888). E, F, spermatheca (BMNH 1933.2.23.886 and BMNH 1933.2.23.888). Abbreviations are defined under 'Taxonomy'. Scale bars: 100 μm.

Figure 8 in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 8. 'Lumbricillus' cf. macquariensis. A, chaetal bundle (CE12486). B, anterior part of body (CE12485). C, nephridium (CE12484). D, spermatheca (CE12483). E, genitalia (CE12483); the testis sacs are illustrated from another specimen (CE12486) but with the same scale. Abbreviations are defined under 'Taxonomy'. Scale bars: 100 μm.

Figure 12. Marionina grisea. A, BMNH 1933.2.23.902, spermatheca. B, BMNH 1933.2.23.901 in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 12. Marionina grisea. A, BMNH 1933.2.23.902, spermatheca. B, BMNH 1933.2.23.901, segments VIII–X. C, BMNH 1933.2.23.902, male apparatus. Abbreviations are defined under 'Taxonomy'. Scale bars: 100 μm.

Figure 3. Lumbricillus antarcticus. A in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 3. Lumbricillus antarcticus. A, chaetal bundle (CE12480). B, anterior part of body (CE12479). C, nephridium (CE12480). D, genitalia (CE12479). E, F, spermathecae (CE12479 and CE34641). Abbreviations are defined under 'Taxonomy'. Scale bars: 100 μm.

Figure 11. Marionina aestuum. A, B, BMNH 1933.2.23.896. A, spermatheca. B, nephridium. C, D, BMNH 1933.2.23.895 in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 11. Marionina aestuum. A, B, BMNH 1933.2.23.896. A, spermatheca. B, nephridium. C, D, BMNH 1933.2.23.895, penial body and associated prostate glands (same specimen). Abbreviations are defined under 'Taxonomy'. Scale bars: 100 μm.

Figure 2 in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 2. Species tree estimated using the multispecies coalescent model in *BEAST. Specimens shaded in grey are from the Southern Hemisphere. Specimens in bold represent new species. Two support values are presented: first, the posterior probabilities from *BEAST; second, the posterior probabilities from the concatenated MRBAYES tree (see Supporting Information, Fig. S3), where '–' indicates the absence of the node in question. Scale bar shows the expected number of changes per site scaled in accordance with the substitution rate of COI.

Figure 10 in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 10. Marionina aestuum (CE12477, ventral view). A, chaetal bundle. B, anterior part of body. C, spermatheca; note that there is another hidden ectal gland behind the spermatheca. D, genitalia. Abbreviations are defined under 'Taxonomy'. Scale bars: 100 μm.

Figure 7 in New insights into the systematics of Lumbricillus and Marionina (Clitellata: Enchytraeidae) inferred from Southern Hemisphere samples, including three new species

Figure 7. Lumbricillus sp. 'Marion Is.'. A, chaetal bundle. B, anterior part of body. Abbreviations are defined under 'Taxonomy'. Scale bars: 100 μm.

Subspecies and Distribution. B.p.physalusLinnaeus,1758—oceansoftheNorthernHemisphere. B. p. quoyi Fischer, 1829 — oceans of the Southern Hemisphere. in Balaenopteridae

Subspecies and Distribution. B.p.physalusLinnaeus,1758—oceansoftheNorthernHemisphere. B. p. quoyi Fischer, 1829 — oceans of the Southern Hemisphere.

Distribution. Tropical and warm temperate waters of the Northern and Southern Hemispheres, generally between 40° N and 40° S. in Balaenopteridae

Distribution. Tropical and warm temperate waters of the Northern and Southern Hemispheres, generally between 40° N and 40° S.

Distribution. Southern Hemisphere, from tropical waters (7° S) to the edge of and within pack ice (65° S) around the Antarctic continent. One record from off the coast of Suriname (4° N) in the Northern Hemisphere. in Balaenopteridae

Distribution. Southern Hemisphere, from tropical waters (7° S) to the edge of and within pack ice (65° S) around the Antarctic continent. One record from off the coast of Suriname (4° N) in the Northern Hemisphere.

Subspecies and Distribution. B.a.acutorostrataLacépede,1804—NAtlanticOcean. B. a. scammoni Demére, 1986 — N Pacific Ocean. An unnamed form is found in the Southern Hemisphere. in Balaenopteridae

Subspecies and Distribution. B.a.acutorostrataLacépede,1804—NAtlanticOcean. B. a. scammoni Demére, 1986 — N Pacific Ocean. An unnamed form is found in the Southern Hemisphere.

Subspecies and Distribution. B.b.borealisLesson,1828—oceansoftheNorthernHemisphere. B. b. schlegelii Flower, 1865 — oceans of the Southern Hemisphere. in Balaenopteridae

Subspecies and Distribution. B.b.borealisLesson,1828—oceansoftheNorthernHemisphere. B. b. schlegelii Flower, 1865 — oceans of the Southern Hemisphere.

Distribution. Cold-temperate waters of the Southern Hemisphere, mainly at 20-60° S except on both coasts of South America, where they occur at most lower latitudes. Concentrated in winter near the coastlines off S Australia, New Zealand, Atlantic coast of South America (Argentina, Brazil), and S Africa (mainly South Africa), but also off Chile, Peru, Tristan da Cunha Is and the E coast of Madagascar; in summer they are found mainly in latitudes of 40-50° S but have been seen in the Antarctic as far as 65° S and around South Georgia Is. in Balaenidae

Distribution. Cold-temperate waters of the Southern Hemisphere, mainly at 20-60° S except on both coasts of South America, where they occur at most lower latitudes. Concentrated in winter near the coastlines off S Australia, New Zealand, Atlantic coast of South America (Argentina, Brazil), and S Africa (mainly South Africa), but also off Chile, Peru, Tristan da Cunha Is and the E coast of Madagascar; in summer they are found mainly in latitudes of 40-50° S but have been seen in the Antarctic as far as 65° S and around South Georgia Is.

Distribution. Southern Hemisphere, circumpolar, generally between 30° S and 55° S but can occur north to 19° S if cold currents are present. in Neobalaenidae

Distribution. Southern Hemisphere, circumpolar, generally between 30° S and 55° S but can occur north to 19° S if cold currents are present.

Distribution. Poorly known, but it appears to be restricted to cooler waters of the Southern Hemisphere between 32° S and the Antarctic convergence; it has been recorded stranding in New Zealand, Australia, Tristan da Cunha, and Tierra del Fuego. Its distribution may be circumpolar, but it is also possible that there is a gap in its distribution between the Chatham Is and South America. in Ziphiidae

Distribution. Poorly known, but it appears to be restricted to cooler waters of the Southern Hemisphere between 32° S and the Antarctic convergence; it has been recorded stranding in New Zealand, Australia, Tristan da Cunha, and Tierra del Fuego. Its distribution may be circumpolar, but it is also possible that there is a gap in its distribution between the Chatham Is and South America.

Distribution. Anti-tropical distribution: N Atlantic Ocean, in a poorly defined region ranging from Ireland to the Canary Is in the E, and from Nova Scotia to Florida in the W, Southern Hemisphere, recorded in S Brazil, South Africa, Madagascar, and S Australia. Nevertheless, due to the small number of records, the full extent of its distribution in the Southern Hemisphere is unclear. in Ziphiidae

Distribution. Anti-tropical distribution: N Atlantic Ocean, in a poorly defined region ranging from Ireland to the Canary Is in the E, and from Nova Scotia to Florida in the W, Southern Hemisphere, recorded in S Brazil, South Africa, Madagascar, and S Australia. Nevertheless, due to the small number of records, the full extent of its distribution in the Southern Hemisphere is unclear.

Distribution. Poorly known due to a lack of records for the species, but it appears to have a circumpolar distribution within colder waters in the Southern Hemisphere. in Ziphiidae

Distribution. Poorly known due to a lack of records for the species, but it appears to have a circumpolar distribution within colder waters in the Southern Hemisphere.