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Fig. 20 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 20. Hollow spine of the accessory penial gland (A–D), and penial papilla (E, F), Melayonchis siongkiati, Darwin, Northern Territory, Australia. A, Scale bar = 100 μm, [5878] (NTM P.59485); B, Scale bar = 100 μm, [5877] (NTM P.59484); C, Scale bar = 100 μm, [5875] (NTM P.59483); D, Spine tip, scale bar = 8 μm, same as C; E, Scale bar = 100 μm, same as A; F, Scale bar = 100 μm, same as B.

Fig. 8 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 8. Live animals, Melayonchis eberlyi, dorsal (A–C) and ventral (D–F) views. A, Holotype, 40 mm long [950] (USMMC 00066); B, 30 mm long [6042] (USMMC 00067); C, 33 mm long [6044] (USMMC 00068); D, same as A; E, 25 mm long [6045] (USMMC 00069); F, same as B.

Fig. 7 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 7. Habitats, Melayonchis eberlyi, unique site (type locality) where Melayonchis eberlyi was found and which corresponds to the stations 27 (in 2011), 262 (in 2016), and 263 (in 2016) (A, B). Old forest with tall Rhizophora trees, high in the tidal zone (ferns), in the educational mangrove preserve near Kuala Sepatang, Peninsular Malaysia.

Fig. 15. Radula, Melayonchis tillieri. A in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 15. Radula, Melayonchis tillieri. A, Rachidian and innermost lateral teeth, scale bar = 10 μm, [973] holotype (USMMC 00070); B, Right lateral teeth, scale bar = 20 μm, [5972] (USMMC 00074). Abbreviations: 1rlt, first, right, lateral tooth; 2rlt, second, right, lateral tooth; hlt, hook of lateral tooth; ilp, inner lateral protuberance; mc, median cusp of rachidian tooth; rt, rachidian tooth.

Fig. 13 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 13. Live animals, Melayonchis tillieri, dorsal (A–D) and ventral (E–G) views. A, Holotype, 50 mm long [973] (USMMC 00070); B, 36 mm long [5957] (USMMC 00072); C, 36 mm long [5970] (USMMC 00073); D, 52 mm long [5972] (USMMC 00074); E, same as A; F, same as B; G, same as D.

Fig. 14 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 14. External morphology, digestive system, and reproductive system, Melayonchis tillieri. Small arrows indicate the direction of the intestinal transport. Large arrows indicate the orientation of the transitional loop. A, Ventral, anterior view, scale bar = 5 mm, [5972] (USMMC 00074); B, Digestive system (type III, with a transitional loop at 12 o'clock), dorsal view, scale bar = 5 mm, holotype [973] (USMMC 00070); C, Digestive system (type III, with a transitional loop at 1 o'clock), dorsal view, scale bar = 2 mm, same as A; D, Posterior reproductive parts, scale bar = 4 mm, same as B; E, Anterior male copulatory parts, scale bar = 3 mm, same as B. Abbreviations: dd, deferent duct; ddg, dorsal lobe of digestive gland; ddt, deferent duct (by transparency); f, foot (pedal sole); fgm, female gland mass; h, hyponotum; hd, hermaphroditic duct; hg, hermaphroditic gland; i, intestine; mo, male opening; ol, oral lobe; ot, ocular tentacle; ov, oviduct; pdg, posterior lobe of the digestive gland; ppg, peripodial groove; ps, penial sheath; rg, rectal gland; rm, penial retractor muscle; rs, receptaculum seminis; sp, spermatheca; st, stomach; tp, transversal protuberance (on oral lobe); v, vestibule.

Fig. 19 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 19. Radula, Melayonchis siongkiati, [5875] (NTM P.59483), Darwin, Northern Territory, Australia. A, Rachidian and innermost lateral teeth, scale bar = 20 μm; B, Right lateral teeth, scale bar = 20 μm. Abbreviations: 1rlt, first, right, lateral tooth; 2rlt, second, right, lateral tooth; hlt, hook of lateral tooth; ilp, inner lateral protuberance; mc, median cusp of rachidian tooth; rt, rachidian tooth.

Fig. 18 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 18. Digestive system, and reproductive system, Melayonchis siongkiati, [5878] (NTM P.59485), Darwin, Northern Territory, Australia. Small arrows indicate the direction of the intestinal transport. Large arrows indicate the orientation of the transitional loop. A, Digestive system (type III, with a transitional loop at 4 o'clock), dorsal view, scale bar = 2 mm; B, Posterior reproductive parts, scale bar = 2 mm; C, Anterior male copulatory parts, scale bar = 2 mm. Abbreviations: ag, accessory penial gland; dd, deferent duct; ddg, dorsal lobe of digestive gland; fgm, female gland mass; hd, hermaphroditic duct; hg, hermaphroditic gland; i, intestine; ov, oviduct; pdg, posterior lobe of the digestive gland; ps, penial sheath; rg, rectal gland; rm, penial retractor muscle; rs, receptaculum seminis; sp, spermatheca; st, stomach; v, vestibule.

Fig. 11. Penial papilla, Melayonchis eberlyi. A in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 11. Penial papilla, Melayonchis eberlyi. A, Scale bar = 100 μm, [950] holotype (USMMC 00066); B, Scale bar = 100 μm, [6045] (USMMC 00069); C, Scale bar = 100 μm, [6042] (USMMC 00067); D, Tip of the papilla, scale bar = 30 μm, same as C.

Fig. 17 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 17. Live animals, Melayonchis siongkiati, Darwin, Northern Territory, Australia, dorsal (A–C), ventral (D, G), and lateral (E, F) views. A, 33 mm long [5875] (NTM P.59483); B, 35 mm long [5877] (NTM P.59484); C, 28 mm long [5878] (NTM P.59485); D, same as C; E, same as A; F, same as B; G, same as A.

Fig. 10 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)

Fig. 10. Radula, Melayonchis eberlyi, [6042] (USMMC 00067). A, Rachidian and innermost lateral teeth, scale bar = 20 μm; B, Right lateral teeth, scale bar = 20 μm. Abbreviations: 1llt, first, left, lateral tooth; 1rlt, first, right, lateral tooth; 2llt, second, left, lateral tooth; 2rlt, second, right, lateral tooth; hlt, hook of lateral tooth; ilp, inner lateral protuberance; mc, median cusp of rachidian tooth; rt, rachidian tooth.

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Fig. 2 in Aiteng Ater, New Genus, New Species, An Amphibious And Insectivorous Sea Slug That Is Difficult To Classify [Mollusca: Gastropoda: Opisthobranchia: Sacoglossa(?): Aitengidae, New Family]

Fig. 2. Aiteng ater, new species: A, dorsal view of slug, length 9 mm, in rest; B, ventral view of slug in rest against glass; C, lateral view of creeping slug, length 11 mm; D, diagram of digestive system in dorsal view; E, dorsal vessels; F, pharynx, length 900 µm; G, diagram of the genital complex in dorsal view; H, radular teeth of two specimens. Legend: ag − albumen gland; al − ascending limb of radula; am − ampulla; as − ascus;bw − body wall; cg − capsule gland; dg − digestive gland; dl − descending limb of radula; dv − dorsal vessels; (fa) − position of female aperture hidden under free notum border; fa − female aperture; fb − foot border; fg − foot groove; hd − hermaphrodite duct; in − intestine; ma − male aperture; mg − mucus gland; mo − mouth; nb − notum border; oe − oesophagus; pc − renopericardium; ph − pharynx; pr − prostate; ps − penis sack; sd − salivary duct; sg − area of salivary follicles; so − short oviduct; sr − seminal receptacle; st − stomach; vd − vas deferens; ve − velum.

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Fig. 1 in Aiteng Ater, New Genus, New Species, An Amphibious And Insectivorous Sea Slug That Is Difficult To Classify [Mollusca: Gastropoda: Opisthobranchia: Sacoglossa(?): Aitengidae, New Family]

Fig. 1. Aiteng ater, new species: A, photo of a wayang (shadow puppet) and of a statue of Ai Theng at a shop near Pak Phanang; B, creeping adult specimen length 9.0 mm in lab; C, creeping young slug length 2.0 mm; D, young slug curled up length 2.1 mm; E, nerve ring, width of photo 170 µm; F, digestive tubes in ventral view in posterior part of body, width of photo 2600 µm; G, posterior lateral side of notum in dorsal view with skin largely removed showing digestive follicles and dorsal vessels; H, prostate dorsal view, width photo 270 µm; I, parasites around salivary follicles, ventral view; J, ventral view of albumen gland, ampulla, and follicles; K, eye; L, penis; M, lateral view of radular teeth. Legend: ag − albumen gland; am − ampulla; dg − digestive follicles; dt − digestive tubes; dv − dorsal vessels; ey − eye; fb − foot border; fo − follicles of ovotestis; nb − notum border; pa − parasite; ph − pharynx; pr − prostate; sg − salivary follicles; sr − seminal receptacle; st − stomach; ve −velum.

Fig. 5 in Systematic revision one clade at a time: A new genus of onchidiid slugs from the Indo-West Pacific (Gastropoda: Euthyneura: Pulmonata)

Fig. 5. Live specimens, dorsal (A–H) and ventral (I–K) views, Marmaronchis vaigiensis, Indonesia. A, Bali, 23 mm long [3081] (UMIZ 00186); B, Bali, 17 mm long [3083] (UMIZ 00186); C, Halmahera, 18 mm long [5046] (UMIZ 00187); D, Halmahera, 19 mm long [5153] (UMIZ 00187); E, Kei, 10 mm long [2908] (UMIZ 00185); F, Sulawesi, 8 mm long [2224] (UMIZ 00182); G, Sulawesi, 8 mm long [2243] (UMIZ 00183); H, Sulawesi, 14 mm long [2244] (UMIZ 00183); I, same as A; J, same as C; K, same as H.

Fig. 10 in Systematic revision one clade at a time: A new genus of onchidiid slugs from the Indo-West Pacific (Gastropoda: Euthyneura: Pulmonata)

Fig. 10. Habitats, Marmaronchis vaigiensis (A–H) and Marmaronchis marmoratus (H), Indonesia (A–E), Singapore (F), and Papua New Guinea (G, H). A, Halmahera, station 217 (UMIZ 00187); B, Same as A; C, Sulawesi, station 91 (UMIZ 00184); D, Kei, station 140 (UMIZ 00185); E, Bali, station 155 (UMIZ 00186); F, Singapore, station 10 (ZRC.MOL.3007); G, New Ireland, Kavieng, station KM20 (MNHN IM-2013-54460, -54467, -54463); H, Madang, station PM24 (MNHN IM-2013-13760, -15566).

Fig. 9 in Systematic revision one clade at a time: A new genus of onchidiid slugs from the Indo-West Pacific (Gastropoda: Euthyneura: Pulmonata)

Fig. 9. Geographic distribution of the two known species of the genus Marmaronchis. The red and dark blue dots correspond to the records for each species from the material included in the present study (the same colour are used on the phylogenetic trees represented in Figs. 1–4). The dark red dot (Ambon, Indonesia) corresponds to a record of Marmaronchis vaigiensis for an old specimen for which no DNA sequences was available (Dayrat, 2010). The four green dots corresponds to type localities of M. vaigiensis and its synonyms. The black dots correspond to paralectotypes of synonyms of M. vaigiensis. The yellow dot corresponds to the type locality of M. marmoratus. The many light blue dots correspond to regions where we collected gastropods in the past few years and where Marmaronchis was not found (acknowledging that it may have been missed in some of them). The orange dot (Guam) corresponds to a record of a Marmaronchis species (likely M. viagiensis) based on a picture and so it is not included within the species distribution area (see Discussion). Finally, the coloured areas correspond to hypothetical ranges based on known records.

Fig. 6 in Systematic revision one clade at a time: A new genus of onchidiid slugs from the Indo-West Pacific (Gastropoda: Euthyneura: Pulmonata)

Fig. 6. Digestive system and reproductive system, Marmaronchis vaigiensis (A, C, F) and Marmaronchis marmoratus (B, D, E). A, Digestive system (type I), dorsal view, scale bar = 3 mm, Indonesia, Sulawesi [2244] (UMIZ 00183); B, Digestive system (type I), dorsal view, scale bar = 3 mm, Papua New Guinea, New Ireland, Kavieng [6092] (MNHN IM-2013-55527); C, Posterior reproductive parts, scale bar = 2 mm, same as A; D, Posterior reproductive parts, scale bar = 2 mm, same as B; E, Anterior male copulatory parts, scale bar = 2 mm, same as B; F, Anterior male copulatory parts, scale bar = 2 mm, Papua New Guinea, Madang [5435] (MNHN IM-2013-11718). Abbreviations: dd, deferent duct; ddg, dorsal lobe of digestive gland; fgm, female gland mass; hd, hermaphroditic duct; hg, hermaphroditic gland; i, intestine; ov, oviduct; pdg, posterior lobe of the digestive gland; ps, penial sheath; rg, rectal gland; rm, penial retractor muscle; rs, receptaculum seminis; sp, spermatheca; st, stomach; v, vestibule.

Fig. 1 in Systematic revision one clade at a time: A new genus of onchidiid slugs from the Indo-West Pacific (Gastropoda: Euthyneura: Pulmonata)

Fig. 1. Phylogenetic tree showing relationships between Marmaronchis individuals based on mitochondrial COI sequences. Numbers above branches are the bootstrap values (Maximum Likelihood analysis) and below are the posterior probabilities (Bayesian analysis); only significant numbers (>75% and>0.9) are indicated. All other sequences serve as outgroups. Information on individually-identified Marmaronchis specimens can be found in the list of material examined.

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Fig. 7 in A new genus and a new species of onchidiid slugs from eastern Indonesia (Gastropoda: Euthyneura: Onchidiidae)

Fig. 7. Reproductive system, Alionchis jailoloensis, Indonesia, Halmahera [5023] (UMIZ 00118). A, Posterior, hermaphroditic parts, scale bar = 3 mm; B, Anterior, male copulatory parts, scale bar = 3 mm. Abbreviations: dd, deferent duct; fgm, female gland mass; hd, hermaphroditic duct; hg, hermaphroditic gland; ov, oviduct; pb, penis bulb-like tip; ps, penial sheath; rm, penial retractor muscle; rs, receptaculum seminis; sp, spermatheca; v, vestibule.