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Рис. 18. Распредение биомассы Hiatella atctica на литорали дальневоcточных морей России. in Bivalve mollusks of the intertidal zone of the Far Eastern seas of Russia

Рис. 18. Распредение биомассы Hiatella atctica на литорали дальневоcточных морей России.

Рис. 15. Распредение биомассы Mya japonica на литорали дальневоcточных морей России. in Bivalve mollusks of the intertidal zone of the Far Eastern seas of Russia

Рис. 15. Распредение биомассы Mya japonica на литорали дальневоcточных морей России.

Рис. 14. Mya (Arenomya) japonica Jay, 1857. Fig. 14. Mya (Arenomya) japonica Jay, 1857. in Bivalve mollusks of the intertidal zone of the Far Eastern seas of Russia

Рис. 14. Mya (Arenomya) japonica Jay, 1857. Fig. 14. Mya (Arenomya) japonica Jay, 1857.

Рис. 13. Распредение биомассы Turtonia minuta на литорали дальневоcточных морей России. in Bivalve mollusks of the intertidal zone of the Far Eastern seas of Russia

Рис. 13. Распредение биомассы Turtonia minuta на литорали дальневоcточных морей России.

Рис. 12. Распредение биомассы Protothaca euglypta на литорали дальневоcточных морей России. in Bivalve mollusks of the intertidal zone of the Far Eastern seas of Russia

Рис. 12. Распредение биомассы Protothaca euglypta на литорали дальневоcточных морей России.

Рис. 5. Распредение биомассы Macoma balthica на литорали дальневоcточных морей России. in Bivalve mollusks of the intertidal zone of the Far Eastern seas of Russia

Рис. 5. Распредение биомассы Macoma balthica на литорали дальневоcточных морей России.

Рис. 3. Распредение биомассы Musculus laevigatus на литорали дальневоcточных морей России. in Bivalve mollusks of the intertidal zone of the Far Eastern seas of Russia

Рис. 3. Распредение биомассы Musculus laevigatus на литорали дальневоcточных морей России.

Figure 4 in Two new species of Lauratonema (Nematoda: Lauratonematidae) from the intertidal zone of the East China Sea

Figure 4. Lauratonema dongshanense sp. nov. (A) lateral view of female anterior part; (B) lateral view of female tail; (C) lateral view of spicule; (D) lateral view of male tail and spicule; (E) full view of female, showing reproductive system; (F) lateral view of male anterior part. Scale bar: 25 µm.

Figure 2 in Two new species of Lauratonema (Nematoda: Lauratonematidae) from the intertidal zone of the East China Sea

Figure 2. Lauratonema macrostoma sp. nov. (A) lateral view of male head end, showing amphids and bacteria; (B) lateral view of male body part, showing spicule; (C) lateral view of female body part, showing eggs; (D) lateral view of female head end, showing buccal cavity; (E) lateral view of female tail. Scale bar: A–D = 10 µm; E = 25 µm.

Figure 1 in Two new species of Lauratonema (Nematoda: Lauratonematidae) from the intertidal zone of the East China Sea

Figure 1. Lauratonema macrostoma sp. nov. (A) lateral view of male anterior part; (B) lateral view of female tail; (C) lateral view of male tail; (D) lateral view of female posterior part, showing reproductive system; (E) lateral view of female anterior part. Scale bar: A, B, C, E = 20 µm; D = 50 µm.

Figure 3 in Two new species of Lauratonema (Nematoda: Lauratonematidae) from the intertidal zone of the East China Sea

Figure 3. Lauratonema dongshanense sp. nov. (A) lateral view of male head end, showing amphid and cephalic setae; (B) lateral view of female head end, showing buccal cavity; (C) lateral view of female head end, showing amphid and bacteria; (D) lateral view of female body part, showing eggs; (E, F) lateral view of male body part, showing spicules; (G) lateral view of male tail. Scale bar: A–F = 10 µm; G = 25 µm.

Figure 12 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 12. Guard papillae of Vignadula (A–D) and Xenostrobus (E–G) species on the posterior region of the inner mantle margin attached to LV. All animals shown preserved in ethanol. A, Vignadula atrata, SL = 11.4 mm, Toishi-ko, Nagasaki, Japan. B, Vignadula mangle comb. nov., SL = 13.5 mm, Kampong Bako, Kuching, Sarawak. C, Vignadula kuraburiensis sp. nov., SL = 13.2 mm, Kuraburi, Phangnga, Thailand. D, V. kuraburiensis sp. nov., SL = 8.8 mm, Ban Baen, Ranong, Thailand. E, Xenostrobus inconstans, SL = 22.7 mm, Dunnalley Bay, Tasmania, Australia (TMAG E21829). F, Xenostrobus securis, SL = 24.8 mm, Swan River, Perth, WA, Australia. G, Xenostrobus pulex, SL = 13.1 mm, Cottesloe, Perth, WA, Australia. Scale bars: 1 mm in A–C, E–G; 500 µm in D.

Figure 14 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 14. Type material of species that are more aligned to Limnoperna than to Xenostrobus or Vignadula. A, B, holotype of Modiolus sambasensis Dautzenberg, 1904 from Sambas River, Kalimantan, north-west Borneo (IRSN); SL = 16.2 mm. C–H, syntypes of Modiolus taprobanensis Preston, 1915 from Ceylon (Sri Lanka) (BMNH). C, D, SL = 17.5 mm. E, F, SL = 18.6 mm. G, H, SL = 18.5 mm. Abbreviations: cam, ctenidial attachment muscle scar; pam, posterior adductor muscle; pbr1, first posterior byssal retractor muscle; pbr2, second posterior byssal retractor muscle.

Figure 13 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 13. Geographical distribution of Vignadula and Xenostrobus species in East Asia, Australia and New Zealand. Locations are based on examined museum material or material collected in the field for this study by the authors, and supplemented by information contained in papers by Colgan (2017: Xenostrobus securis); Colgan et al. (2020: Xenostrobus neozelanicus and X. securis); Horikoshi & Okamoto (2007: X. securis); Iwasaki (2013: X. securis); Iwasaki & Yamamoto (2014: X. securis); Kimura (1996: Vignadula atrata); Kimura et al. (1999: X. securis [?], as Xenostrobus sp.); Lee & Morton (1985: Vignadula mangle comb. nov., as Xenostrobus atratus); Lamarck (1819: X. securis [?], as Mytilus securis; MNHN-IM-2000-34894, three syntypes); Lutaenko et al. (2019: V. atrata); Morton (1999: Xenostrobus pulex); Morton (2004: Xenostrobus inconstans); Morton & Leung (2015: X. securis); Park et al. (2017: V. atrata); Wang et al. (2011: V. atrata); Wilson (1967: Xenostrobus spp.).

Figure 11 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 11. Relationship between shell size and number of folds observed on the labial palps of four Vignadula species from East and Southeast Asia. Data from Ockelmann (1983) for Vignadula atrata, Vignadula balani and Vignadula mangle are indicated separately. Apart from data points based on the study by Ockelmann (1983) and three individuals of Vignadula kuraburiensis sp. nov., all are referable to genetically sequenced individuals based on this study.

Figure 10 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 10. Vignadula mangle (Ockelmann, 1983) comb. nov. A, numerous individuals amongst barnacles (Amphibalanus amphitrite (Darwin, 1854)) on an intertidal rocky shore at Teluk Senangin, Perak, Malaysia. Scale bar: 1 cm. B, intact living individual seen from its left, with extended inhalant (inner mantle lobes bearing simple guard papillae, gp) and exhalant (es) siphons. Scale bar: 1 mm. C, surface of posterior half of left valve (SL = 8.0 mm; specimen collected from Sembawang, Singapore) with 'special byssus secretions' (sbs), or commarginal series of thickenings or blunt serrations, sensu Ockelmann (1983). Scale bar: 500 µm. D, outer plicate gland, after removal of ctenidium. Scale bar: 1 mm. E–G, detail of the posterior region of living individuals, showing simple and branched (yellow asterisks) guard papillae. Both types of papillae can occur in the same individual, as shown in E and F. Blue and green arrows depict the direction of inhalant and exhalant currents. Scale bars: 1 mm. D, Hat Yao jetty, Trang, Gulf of Thailand. E, Teluk Batik, Lumut, Perak. B, F, G, Bangsaen Beach, Chonburi, Gulf of Thailand.

Figure 9 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 9. Type material of Vignadula mangle comb. nov. and Vignadula balani. A–D, Xenostrobus mangle Ockelmann, 1983 paratypes NHMD 916051 Jeram, Selangor, peninsular Malaysia. A, B, SL = 8.2 mm. C, D, SL = 11.0 mm. E–H, Xenostrobus balani Ockelmann, 1983 paratypes NHMD 915909 Phuket, Thailand. E, F, SL = 6.4 mm. G, LV, SL = 7.2 mm. H, LV, SL = 8.5 mm.

Figure 7 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 7. Vignadula kuraburiensis sp. nov. Sequenced specimens from western Thailand: A–H, Ban Thung La Ong in Kuraburi District, Phang-nga Province; I, J, Bang Ben Bay, Laem Son National Park, Kapoe District, Ranong Province. A, B, XTSW1; LV, SL = 12.8 mm (holotype, PMBC 25290). C, D, XTSW2; LV, SL = 13.2 mm (paratype, PMBC 25291). E, F, XTSW3; LV, SL = 12.3 mm (paratype ZRC.MOL.24068). G, H, XTSW4; RV (anterior half of ventral edge partially broken), SL = 11.5 mm (ZRC.MOL.24069). I, J, XTSW5; LV, SL = 9.0 mm (ZRC.MOL.24070). See also Clade B in Figures 1–3.

Figure 8 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 8. Vignadula atrata (Lischke, 1871). A, posterior region of living juvenile with extended mantle margins (imm) devoid of guard papillae. Blue and green arrows depict the direction of inhalant and exhalant currents. Scale bar: 500 µm. B, posterior region of ethanol-preserved sequenced individual XNJ 0519B, with left valve removed to show posterior end of ctenidium (ct), mixture of simple (marked by yellow crosses) and branched (yellow asterisks) guard papillae (gp) along the inner mantle margin (imm) and posterior adductor muscle (pam). Scale bar: 1 mm. C, living individual with numerous simple and branched guard papillae. Scale bar: ~500 µm. D, living individual with mostly simple guard papillae. Note the well-formed exhalant siphon. Scale bar: ~1 mm. A, Kagoshima, Japan. B–D, Nagasaki, Japan.

Figure 6 in Xenostrobus or Vignadula (Bivalvia: Mytilidae)? A taxonomic re-evaluation of small black mussels inhabiting the upper intertidal zone of the estuaries of Southeast Asia

Figure 6. Vignadula mangle (Ockelmann, 1983) comb. nov. Selected sequenced specimens from Malaysia (A, B), Thailand (C–H) and Taiwan (I–L). A, B, XA MYPK 0419C, Lumut, Perak (Malacca Strait); RV, SL = 6.2 mm (ZRC.MOL.24041). C, D, XBT3, Pak Meng, Trang Province, Thailand (Andaman Sea); LV, SL = 11.9 mm (ZRC.MOL.24067). E, F, XTE6, Hua Hin, Prachuap Khiri Khan Province (Gulf of Thailand); LV, SL = 10.1 mm (ZRC.MOL.24004). G, H, XM TBB 0719C, Bangsaen Beach, Chonburi Province (Gulf of Thailand); LV, SL = 9.7 mm (ZRC.MOL.24007). I, J, XTW1, Kinmen, Taiwan; LV, SL = 9.2 mm (ZRC.MOL.24033). K, L, XTW6, Kinmen, Taiwan; LV, SL = 9.5 mm (ZRC.MOL.24038). See also Clade D in Figures 1–3.