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17 results for “Melayonchis”
Fig. 12 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)
Fig. 12. Habitats, Melayonchis tillieri, at the only three sites where M. tillieri is known, near Kuala Sepatang, Peninsular Malaysia. A, From the boat, view of station 256 (in 2016, same site as station 29 in 2011), old and open Rhizophora forest of tall and beautiful trees, with hard mud, many creeks and logs; B. Landing place to access station 256; C, Station 256, inside the forest; D, same as C; E, Station 28 (in 2011, type locality), old and open Rhizophora forest with tall trees, hard mud, creeks, and many logs; F, Station 257 (in 2016), old forest with tall Rhizophora trees, high in the tidal zone (ferns), in the educational mangrove preserve.
Fig. 6 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)
Fig. 6. Geographic distribution of the six known Melayonchis species. The many blue dots correspond to regions where we collected gastropods since 2010 (with several sites per dot), clearly indicating where we have not found Melayonchis (e.g., Philippines, Sulawesi, Queensland). So far, Melayonchis was only found in the Andaman Islands, on both sides of the Strait of Malacca (western Peninsular Malaysia and eastern Sumatra), Singapore, southern Vietnam, Brunei Darussalam, and Northern territory. The colours used for each species are the same as those used in Figs. 3–5.
Fig. 2 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)
Fig. 2. Onchidiid intestinal type III. Small black arrows indicate the direction of the intestinal transport, which starts in the blue loop. A blue loop turns clockwise. A yellow loop turns counterclockwise. A green loop is transitional between a blue loop and a yellow loop. The orientation of the transitional (green) loop is indicated with a red arrow (e.g., at 3 o'clock in C, at 6 o'clock in I, and at 12 o'clock in J). For details about the Melayonchis and Onchidium individuals illustrated here, see Dayrat et al. (2016, 2017). A, Plate's (1893: pl. 8, fig. 31a) original figure of a type III, Onchidium nigrum (junior synonym of Onchidium stuxbergi), redrawn (scale unclear), colours indicate Plate's interpretation; B, same as A, colours indicate a new interpretation based on two parts (in red) drawn by mistake by Plate (see the text); C, O. stuxbergi (from Dayrat et al., 2016: fig. 11B), scale bar = 5 mm; D, O. stuxbergi, (PNM 041200), scale bar = 4 mm; E, O. stuxbergi, [5605], scale bar = 5 mm; F, Melayonchis eloisae, [1011], scale bar = 2 mm; G, M. eloisae, [922], scale bar = 2 mm; H, M. eloisae, [5607], scale bar = 1 mm; I, M. eloisae, [951], scale bar = 2 mm; J, M. aileenae, [5631], scale bar = 2 mm; K, M. aileenae (from Dayrat et al., 2017: fig. 23a), scale bar = 3 mm; L, M. aileenae, [970], scale bar = 2 mm; M, M. siongkiati, [1052], scale bar = 2 mm; N, M. siongkiati, [5608], scale bar = 3 mm; O, M. siongkiati (from Dayrat et al., 2017: fig. 12a), scale bar = 4 mm.
Fig. 16. Penial papilla, Melayonchis tillieri. A in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)
Fig. 16. Penial papilla, Melayonchis tillieri. A, Scale bar = 100 μm, [973] holotype (USMMC 00070); B, Scale bar = 100 μm, [5972] (USMMC 00074); C, Scale bar = 100 μm, [972] (USMMC 00071); D, Tip of the papilla, scale bar = 40 μm, same as C.
Fig. 1. Onchidiid intestinal types I and II in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)
Fig. 1. Onchidiid intestinal types I and II. Small black arrows indicate the direction of the intestinal transport, which starts in the blue loop. A blue loop turns clockwise. A yellow loop turns counterclockwise. A green loop is transitional between a blue loop and a yellow loop. The orientation of the transitional (green) loop is indicated with a red arrow (at 3 o'clock in A and B, at 9 o'clock in C and D, and at 8 o'clock in E). A, Plate's (1893: pl. 8, fig. 29) original figure of a type I, redrawn (scale unclear); B, Type I, Wallaconchis sinanui (from Goulding et al., 2018b: fig. 8D), scale bar = 1 mm; C, Plate's (1893: pl. 8, fig. 31) original figure of a type II, redrawn (scale unclear); D, Type II, Paromoionchis tumidus (from Dayrat et al., 2019a: fig. 12A), scale bar = 2 mm; E. Type II, Melayonchis annae (from Dayrat et al., 2017: fig. 17a), scale bar = 3 mm.
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.
Fig. 9 in New species and new records of Melayonchis slugs (Gastropoda: Euthyneura: Pulmonata: Onchidiidae)
Fig. 9. Digestive system and reproductive system, Melayonchis eberlyi. 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 8 o'clock), dorsal view, scale bar = 4 mm, [950] holotype (USMMC 00066); B, Digestive system (type III, with a transitional loop at 6 o'clock), dorsal view, scale bar = 2 mm, [6045] (USMMC 00069); C, Posterior reproductive parts, scale bar = 3 mm, same as A; D, Anterior male copulatory parts, scale bar = 2 mm, same as A. 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.
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