Find research datasets worth reusing

Fig. 5 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 5. Live individual of Varadia amboliensis Bhosale, Thackeray, Muley & Raheem gen. et sp. nov. from the site near Amboli waterfall. Image: O. Yadav.

Fig. 4 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 4. Shell sculpture of a paratype (BNHS GAS 119) of Varadia amboliensis Bhosale, Thackeray, Muley & Raheem gen. et sp. nov. A. Protoconch showing irregular collabral lines; black arrow indicates the approximate point of transition from the protoconch to the teleoconch. B–C. Close longitudinal striae of protoconch (B) and teleoconch (C). The direction of the longitudinal striae and the faint collabral striae (barely evident) are shown, respectively, by the white and black arrows in C.

Fig. 2 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 2. Shell height and width, as measured for this study. The shell axis is parallel to the height and perpendicular to the width.

Fig. 8 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 8. Reproductive system of the holotype (BNHS GAS 113) of Varadia amboliensis Bhosale, Thackeray, Muley & Raheem gen. et sp. nov. A. Gross morphology. B. Dissection of capsular gland, showing morphology of inner wall. Abbreviations: ag = albumen gland; cg = capsular gland; ec = epiphallic caecum; ep = epiphallus; esh = extension of penial sheath around epiphallus; fl = flagellum; ga = genital atrium; gd = gametolytic duct; gs = gametolytic sac; hd = hermaphrodite duct; ir = irregularly-marked papillate ridges; lw = lung wall; ot = ovatestes; ov = oviduct; pe = penis; pg = prostate gland; pr = penial retractor muscle; thsh = thick penial sheath; tsh = thin penial sheath; so = spermoviduct; va = vagina; vd = vas deferens.

Fig. 7 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 7. Arrangement of the mantle in Varadia amboliensis Bhosale, Thackeray, Muley & Raheem gen. et sp. nov. A. Left lateral view. B. Dorsal view. C. Right lateral view. The shell is shaded in grey. Abbreviations: ldl = left dorsal lobe; rdl = right dorsal lobe; lsl = left shell lobe; rsl = right shell lobe.

Fig. 14 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 14. Bayesian majority rule consensus tree of the rRNA gene cluster dataset (874 bp) for the Limacoidea. Ingroup taxa are colour-coded by their family-level placements, with subfamily-level placements being shown only for Ariophantidae (see Table 1). The tree is rooted with an outgroup consisting of three members of the Arionoidea (Arion hortensis Férussac, 1819, Meghimatium bilineatum (Benson, 1842) and Philomycus carolinianus (Bosc, 1802)). Clades A and B are indicated by arrows. Branch support values are shown in the following sequence: Bayesian posterior probabilities, ML bootstraps and NJ bootstraps. Symbols: '*' = maximal support (Bayesian = 1; NJ, ML = 100%); '-' = differences in branching pattern between Bayesian and NJ trees. Scale bar indicates substitutions per site.

Fig. 12 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 12. Radula and jaw of a paratype (BNHS GAS 127) of Varadia amboliensis Bhosale, Thackeray, Muley & Raheem gen. et sp. nov. A. Central (indicated by arrows), inner lateral and outer lateral teeth. B. Central and inner lateral teeth. C–D. Marginal teeth. E. Jaw. Note median projection.

Fig. 11 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 11. Spermatophore of Varadia amboliensis Bhosale, Thackeray, Muley & Raheem gen. et sp. nov. A. Fragments of two spermatophores (part of the tail-pipe is missing in both), as found in situ in the gametolytic sac of the paratype BNHS GAS 125. B–D. Morphology of the fully-intact spermatophore found in the gametolytic sac of the paratype ZSI Moll/1820. B. The upper arrow indicates the U-shaped bend at the junction of the capsule and tail-pipe, and the lower arrow shows the funnel-like opening at the tip of the tail-pipe. Also shown is the cross section of the spermatophore (indicated by the dotted line) close to the tip of the tail-pipe; note the hollow central area. C. Detail of a small section of the tailpipe (indicated by rectangle in B), showing one of the four longitudinal ribs and the hair-like spines on the spermatophore surface. D. Detail of tip of tail-pipe, showing the funnel-like opening that leads into the hollow central area (shown by arrow). Note the hair-like spines. Abbreviations: cap = capsule; gd = gametolytic duct; gs = gametolytic sac; o = opening at tip of tail-pipe; sp = spermatophore; tp = tail-pipe.

Fig. 13 in Varadia, a new helicarionoidean semi-slug genus from India's Western Ghats (Stylommatophora: Helicarionoidea)

Fig. 13. Habitat of Varadia amboliensis Bhosale, Thackeray, Muley & Raheem gen. et sp. nov. A. Hiranyakeshi temple. B–C. Amboli Forest Park; snails were observed on the walls of the temple and other structures and in the surrounding forest. D–E. Amboli waterfall; snails were observed on the wall near the sunshade (D) and on the roadside safety barrier (E). F. Yana Forest, where snails were found on the forest floor, close to the footpath.

Fig. 3 in A new genus Swennenia for Gascoignella jabae Swennen, 2001, a small rare mangrove dwelling sea slug in the Gulf of Thailand, with notes on the species (Gastropoda: Sacoglossa: Plakobranchoidea)

Fig. 3. Drawings of Swennenia jabae (Swennen, 2001). A, dorsal view of animal with important parts indicated; B, pharynx; C, eye; D, penis; E, teeth; F, diagram of digestive system; G, diagram of reproductive system. Abbreviations: ad, albumen duct; ag, albumen gland; an, anus; as, ascus; cc, central canal; cg, capsule gland; dg, digestive gland; ey, eye; ga, ganglion; gr, genital receptacle; hd, hermaphrodite duct; hg, hermaphrodite follicles; in, intestine; lo, large oviduct; ma, male aperture; mu, mucus gland; oa, oviducal aperture; oe, oesophagus; ph, pharynx; pr, prostate; ps, penis style; rp, renal pore; sr, seminal receptacle; st, stomach; te, teeth; va, vagina aperture; vd, vas deferens;?, indeterminate gland.

Fig. 4 in A new genus Swennenia for Gascoignella jabae Swennen, 2001, a small rare mangrove dwelling sea slug in the Gulf of Thailand, with notes on the species (Gastropoda: Sacoglossa: Plakobranchoidea)

Fig. 4. Internal organs of Swennenia jabae. A, pericardium; B, dorsal view of the body with the skin removed to show the hermaphrodite follicles and septum; C, dorsal view with the skin and internal organs removed to show the septum; D, penial style; E, hermaphrodite follicles; F, position of digestive gland, hermaphrodite follicles, and albumen gland. Abbreviations: ag, albumen gland; dg, digestive gland; ey, eye; h, heart; hf, hermaphrodite follicles; in, intestine; ki, kidney; se, septum.

Fig. 2 in A new genus Swennenia for Gascoignella jabae Swennen, 2001, a small rare mangrove dwelling sea slug in the Gulf of Thailand, with notes on the species (Gastropoda: Sacoglossa: Plakobranchoidea)

Fig. 2. Swennenia jabae (Swennen, 2001), total length including cerata ca. 6 mm, from Pattani Bay photographed in the lab. A, slight dorso-lateral view; B, dorsal view.

Fig. 1. A in A new genus Swennenia for Gascoignella jabae Swennen, 2001, a small rare mangrove dwelling sea slug in the Gulf of Thailand, with notes on the species (Gastropoda: Sacoglossa: Plakobranchoidea)

Fig. 1. A, natural habitat in Pattani, Thailand, with mat of the algae Boodleopsis cf. pusilla, amongst pneumatophores in the mangroves; B, clay blocks cut out of the ground.

Fig. 6 in A new genus Swennenia for Gascoignella jabae Swennen, 2001, a small rare mangrove dwelling sea slug in the Gulf of Thailand, with notes on the species (Gastropoda: Sacoglossa: Plakobranchoidea)

Fig. 6. Egg mass and embryos of Swennenia jabae. A, egg string; B, closer view of egg string showing individual capsules; C, veligers about to hatch on 4th day.

Fig. 5 in A new genus Swennenia for Gascoignella jabae Swennen, 2001, a small rare mangrove dwelling sea slug in the Gulf of Thailand, with notes on the species (Gastropoda: Sacoglossa: Plakobranchoidea)

Fig. 5. Dorsal view of animal. A, faeces being expelled in thin strings from the anus (total length including cerata ca. 5.5 mm); B, animal with new ceras being regenerated (total length including cerata ca. 3 mm).

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.