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Fig. 11 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 11. Photographs showing typical habitat types of the new species: A, B, Amynthas arenulus, new species. A, earthen dyke around paddy field; B, casting. C, D, Amynthas longicaeca, new species. C, dipterocarp forest; D, casting. E, F, Amynthas thakhantho, new species. E, organic gardening; F, tower–like casting.

Fig. 7 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 7. External and internal morphology of holotype (CUMZ 3306) of Amynthas phucheefah, new species: A, external ventral view; B, internal dorsal view; C, spermathecae. Dark arrow indicates the connection of the spermathecae and spermathecal pore.

Fig. 4 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 4. External and internal morphology of holotype (CUMZ 3304) of Amynthas longicaeca, new species: A, external ventral view; B, internal dorsal view; C, spermathecae. Dark arrow indicates the connection of the spermathecae and spermathecal pore.

Fig. 1 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 1. Map of type localities of Amynthas arenulus, new species, from Ban Khok Pho, Surin (1), Amynthas longicaeca, new species, from Phu Lan Kha National Park, Chaiyaphum (2), Amynthas phucheefah, new species, from Phu Chee Fah, Chiang Rai (3), and Amynthas thakhantho, new species, from Tha Khantho, Kalasin (4).

Fig. 6 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 6. External and internal morphology of syntype (ZMH V7171) of Amynthas osmastoni: A, external ventral view; B, internal dorsal view; C, spermathecae. Dark arrow indicates the connection of the spermathecae and spermathecal pore.

Fig. 3 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 3. External and internal morphology of holotype (CUMZ 3299) of Amynthas arenulus, new species: A, external ventral view; B, internal dorsal view; C, spermathecae. Dark arrow indicates the connection of the spermathecae and spermathecal pore.

Fig. 2 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 2. External and internal morphology of Amynthas aeruginosus, the type species. A–C, lectotype (SMNH 154): A, external ventral view; B, internal dorsal view; C, spermathecae. D–F, paralectotype (ZMH V5221): D, spermathecal pores; E, male pores; F, incomplete internal dorsal view.

Fig. 9 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 9. External and internal morphology of the syntype (ZMH 9294) of Amynthas jacobsoni: A, external ventral view; B, internal dorsal view; C, spermathecae. Dark arrow indicates the connection of the spermathecae and spermathecal pore.

Fig. 5 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 5. External and internal morphology of syntype (ZMH V3864) of Amynthas burchardi: A, external ventral view; B, internal dorsal view; C, spermathecae. Dark arrow indicates the connection of the spermathecae and spermathecal pore.

Fig. 8 in Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae)

Fig. 8. External and internal morphology of holotype (CUMZ 3308) of Amynthas thakhantho, new species: A, external ventral view; B, internal dorsal view; C, spermathecae. Dark arrow indicates the connection of the spermathecae and spermathecal pore.

Fig. 3 in Two new earthworm species of the genus Polypheretima Michaelsen, 1934 (Clitellata: Megascolecidae) from central Vietnam

Fig. 3. Polypheretima tabhinhensis, new species, holotype. A1, A2, ventral view of male pores region; B1, B2, spermathecae; C1, C2, prostatic glands; D, testis sacs (ts) and seminal vesicles (sv); E, ventral view of spermathecal region; F, male pore cross section slide; G, genital marking cross section slide; H, body wall cross section slide. Scale bar: 1 mm.

Fig. 4 in Two new earthworm species of the genus Polypheretima Michaelsen, 1934 (Clitellata: Megascolecidae) from central Vietnam

Fig. 4. Polypheretima kyhaensis (Thai, 1996) redrawn following the original description (Thai, 1996). A, ventral view of male pore region; B, lateral view of spermathecal region; C, spermathecae; D, testis sacs (ts), seminal vesicles (sv), and ovaries (ov). Scale bar: 1 mm.

Fig. 1 in Two new earthworm species of the genus Polypheretima Michaelsen, 1934 (Clitellata: Megascolecidae) from central Vietnam

Fig. 1. Collecting sites of two new earthworms (A from Google Map; B and C from The World Agroforestry Centre in Vietnam). Legend: ●, Polypheretima medialis; ▲, Polypheretima tabhingensis; ★, Polypheretima medialis & Polypheretima tabhingensis.

Fig. 2 in Two new earthworm species of the genus Polypheretima Michaelsen, 1934 (Clitellata: Megascolecidae) from central Vietnam

Fig. 2. Polypheretima medialis, new species, holotype. A1, A2, ventral view of male pores region; B, ventral view of spermathecal region; C1, C2, prostatic gland; D1, D2, spermathecae; E, male pore cross section slide; F, genital markings cross section slide. Scale bar: 1 mm.

Fig. 3 in On the polythecate earthworms of the genus Metaphire (Oligochaeta: Megascolecidae) from Vietnam, with descriptions of three new species

Fig. 3. Metaphire magnophiloides, new species, holotype. A, male pore region (mp = male pore); B, spermathecal region; C, spermathecae, right side (am = ampulla; dv = diverticula); D, prostate gland; E, intestinal caeca. Scale bars = 1 mm.

Fig. 2 in On the polythecate earthworms of the genus Metaphire (Oligochaeta: Megascolecidae) from Vietnam, with descriptions of three new species

Fig. 2. Metaphire dorsomultitheca, new species, holotype. A, spermathecal region (sp = spermathecal pores); B, spermathecae, left side (am = ampulla; dv = diverticula); C, male pore region (mp = male pore); D, Prostate gland (ag = accessory gland); E, intestinal caeca; F, G, transverse body section of segment xviii: F, accessory glands; and G, male pore. Scale bars = 1mm.

Fig. 1 in On the polythecate earthworms of the genus Metaphire (Oligochaeta: Megascolecidae) from Vietnam, with descriptions of three new species

Fig. 1. Metaphire kiengiangensis, new species, holotype and specimen 13 (CTU.EW019-p04). A, B, male pore region (mp = male pore; gm = genital markings): A, mainland population; and B, island population; C, D, spermathecae, left side (am = ampulla; dv = diverticula): C, mainland population; and D, island population; E, prostate gland (ag = accessory gland); F, intestinal caeca; G, H, transverse body section of segment xviii: G, male pore; and H, accessory glands. Scale bars = 1mm.

Fig. 4 in On the polythecate earthworms of the genus Metaphire (Oligochaeta: Megascolecidae) from Vietnam, with descriptions of three new species

Fig. 4. Metaphire dipapillata (Thai et Tran, 1986). A, male pore region (mp = male pore; gm = genital markings); B, spermathecae, right side (am = ampulla; dv = diverticula); C, prostate gland; D, intestinal caeca. Scale bars = 1 mm.

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Fig. 1 in Araguanema mutabile sp. nov., a new species of a rare genus (Drilonematoidea: Cephalobomorpha) parasitic in earthworms of Ecuador

Fig. 1. Araguanema mutabile sp. nov. Female. A, B, D-F, H-I: holotype; C, G: paratype. Except G, all in lateral position. Scale bars in μm. (A) Entire worm. (B) Head. (C) Anterior part. (D) Vulval region. (E-F) Lateral chord at mid-body. (G) Tail, subventral view. (H-I) Egg-shell. Abbreviations: FO ‒ fimbriate organ, VO ‒ vesicular organ.