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opennotspecifiedOct 2020View details →

Figure 1 in The temperate Australasian genus Papawera Oskars and Malaquias, 2019 (Gastropoda: Cephalaspidea: Haminoeidae), with a redescription of P. zelandiae and P. maugeansis

Figure 1. Bayesian phylogeny depicting relationships and species diversity of the genus Papawera. Hypothesis based on the combined analysis of the mitochondrial COI, 16S rRNA and 12S rRNA and nuclear 28S rRNA and Histone H3 genes. The tree is a composite based on Figures 1 and 2 from Oskars & Malaquias (2019). Values above branches are BI posterior probabilities and below branches are bootstrap values derived by ML (Oskars & Malaquias, 2019). Images of Lamprohaminoea cymbalum, Mozambique (TH64), courtesy of Y. Tibiriçá; Bakawan rotundata, Singapore (496), courtesy of K. Jensen; Smaragdinella cf. sieboldi, Mozambique (TH55), courtesy of Y. Tibiriçá; Haminoea alfredensis, South Africa, NHMUK 20070315 (174), courtesy of G. Branch and C. Griffiths.

Figure 1. Scaphander gracilis Watson, 1883 in Revisiting the deep-sea Atlantic gastropod species Scaphander gracilis Watson, 1883 (Gastropoda: Cephalaspidea: Scaphandridae): first data on its anatomy, systematics, and ecology

Figure 1. Scaphander gracilis Watson, 1883. (a) apertural (left), adpertural (right), apical (bottom) views of shell from south off Flores Island, Azores, lectotype, NHMUK 1887.2.9.2183–6, H = 13.5 mm (images courtesy of the NHMUK photographic unit). (b) apertural (left), adpertural (right), apical (bottom) views of shell from south of São Miguel Island, Azores, paralectotype, NHMUK 1887.2.9.2187 − 8, H = 13.0 mm (images courtesy of the NHMUK photographic unit). (c) apertural (left), adpertural (right), apical (bottom) views of shell from between São Miguel and Santa Maria Islands, Azores, DBUA 1630, H = 20 mm. (d) stereo microscope image of the sculpture of the shell illustrated in C. Scale bar = 1 mm.

Figure 4 in Revisiting the deep-sea Atlantic gastropod species Scaphander gracilis Watson, 1883 (Gastropoda: Cephalaspidea: Scaphandridae): first data on its anatomy, systematics, and ecology

Figure 4. Bayesian phylogenetic tree based on partial sequences of the COI gene. Figures on nodes are posterior probabilities, scale bar refers to branch lengths. The tree was rooted using the species Bulla vernicosa.

Figure 3 in Revisiting the deep-sea Atlantic gastropod species Scaphander gracilis Watson, 1883 (Gastropoda: Cephalaspidea: Scaphandridae): first data on its anatomy, systematics, and ecology

Figure 3. Scanning electron micrographs of foraminifera taken from the gut content of Scaphander gracilis (DBUA 1630, H = 20 mm). (a–b) agglutinating foraminifera; (c−j) calcareous foraminifera. Scale bar = 1 mm.

Figure 2 in Revisiting the deep-sea Atlantic gastropod species Scaphander gracilis Watson, 1883 (Gastropoda: Cephalaspidea: Scaphandridae): first data on its anatomy, systematics, and ecology

Figure 2. Anatomical details of Scaphander gracilis Watson, 1883 (DBUA 1630, H = 20 mm). (a) radula; (b) rachidian tooth; (c) denticulation of the inner edge of lateral teeth; (d) anterior part of digestive tract; (e) gizzard plates, inner side of the paired plates and lateral view of the unpaired plate; (f) male reproductive system; (g) lining of the penial chamber. bb, buccal bulb; c, crop; go, genital opening; m, mouth; o, oesophagus; p, prostate; pc, penial chamber; pd, prostatic duct; pgp, paired gizzard plates; sg, salivary gland; ugp, unpaired gizzard plate. Scale bars: A, G = 200 µm; B, C = 20 µm; D, F = 1 mm; E = 2 mm.

Figure 5 in Revisiting the deep-sea Atlantic gastropod species Scaphander gracilis Watson, 1883 (Gastropoda: Cephalaspidea: Scaphandridae): first data on its anatomy, systematics, and ecology

Figure 5. Distribution of Scaphander gracilis, based on reliable literature records (shells) and newly sampled material (complete specimen).

Figure 5 in The new genus Aglaona: the first abyssal aglajid (Heterobranchia: Cephalaspidea: Aglajidae) with a description of two new species from the north-western Pacific Ocean

Figure 5. Aglaona valdesi gen. & sp. nov. dorsal view of the paratype (A); ventral view of a paratype (B); ventral view of paratype shell, SEM: the 'wing-like' callus is marked with an arrow (C); shell spiral sculpture (D); shell apex, SEM (E); buccal bulb, frontal view, SEM (F); anterior part of digestive system, lateral view (G); jaw elements, enlarged SEM (H); radula, SEM (I); cephalic copulatory system, photo (J); penial papilla, SEM (K); sketch, penial sheath dissected (L). Abbreviations: c, parietal callus; es, oesophagus; f, foot; pl, chitinous plate at the end of the penial papilla; pp, penial papilla; pr, penial prostate; psh, penial sheath; rad, radular sac; sgl, salivary gland; sh, headshield. Scale bars: 1 mm (A, B, C, G), 500 µm (E, J), 200 µm (D, F), 50 µm (I, K), 10 µm (H).

Figure 3 in The new genus Aglaona: the first abyssal aglajid (Heterobranchia: Cephalaspidea: Aglajidae) with a description of two new species from the north-western Pacific Ocean

Figure 3. Molecular phylogenetic hypotheses of the family Aglajidae, concatenated dataset of four markers (COI, 16S, H3, 28S), Bayesian inference. Outgroup taxa are collapsed by their families, aglajid taxa except Aglaona gen. nov. by putative species-level clades. Posterior probabilities from Bayesian inference higher than 0.9 are shown above each branch, bootstrap values of maximum likelihood higher than 60% below each branch. Morphological characters states (A, shell; B, gizzard plates; C, radula) are shown in three bars on the right.

Figure 2 in The new genus Aglaona: the first abyssal aglajid (Heterobranchia: Cephalaspidea: Aglajidae) with a description of two new species from the north-western Pacific Ocean

Figure 2. Molecular phylogenetic hypotheses of the superfamily Phillinoidea showing relationships between Aglajidae genera, based on a concatenated dataset of four markers (COI, 16S, H3, 28S). Outgroup taxa are collapsed by their families, aglajid taxa except Aglaona gen. nov. by their genera. A, Bayesian inference, posterior probabilities higher than 0.9 are shown in the respective node. B, maximum likelihood; bootstrap values higher than 60% are shown in the respective nodes.

Figure 4 in The new genus Aglaona: the first abyssal aglajid (Heterobranchia: Cephalaspidea: Aglajidae) with a description of two new species from the north-western Pacific Ocean

Figure 4. Aglaona rudmani gen. & sp. nov. dorsal view of the holotype (A); ventral view of a paratype (B); paratype shell, ventral view, SEM the 'wing-like' callus is marked with an arrow (C); shell apex, SEM (E); shell spiral sculpture, SEM (D); radula, SEM (F); lateral teeth (G); copulatory system (SEM) (H); sketch, dissected penial sheath (I); chitinous stylet of penis SEM (J). Abbreviations: ej, ejaculatory duct opening; f, foot; pr, penial prostate; sh, headshield; psh, penial sheath; st, penial stylet. Scale bars: 2 mm (C), 1 mm (A, B), 500 µm (H), 400 µm (E), 200 µm (D), 100 µm (F, J), 50 µm (G).

Figure 1 in The new genus Aglaona: the first abyssal aglajid (Heterobranchia: Cephalaspidea: Aglajidae) with a description of two new species from the north-western Pacific Ocean

Figure 1. Map illustrating the collection sites of deepsea aglajids in the Sea of Okhotsk and Bussol Strait of the Kuril Islands.

FIGURE 6 in Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks

FIGURE 6. Radula (A) and penial morphology (B) of Scaphander grandis comb. n. by Minichev, 1965, reconstructed using serial sections (C); a, b, c are sections through different parts of the male copulatory system. Abbreviations: pr, prostate; ps, penis. Scale bars: (A) 100 µm; (B) 0.5 mm; and (C) 200 µm.

FIGURE 4 in Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks

FIGURE 4. Anatomical details of Scaphander grandis comb. n. Specimen ZISP 3/62442 without shell: (A) dorsal view; (B) gizzard; (C, F) odontophore with radula; (D) anterior part of the digestive system; (E) gizzard paired plate, outer side; (G) gizzard unpaired plate, lateral view; (H, I) penis. Abbreviations: bb, buccal bulb; bc, bursa copulatrix; b.g, buccal ganglion; c, cephalic shield; cr, crop; d, prostate duct; es, esophagus; g, gill; gast, stomach; gpl, gizzard plate; mc, mantle coecum; n, kidney; pr, prostate; r, location of rachidals; re, retractor of buccal bulb; p.sh, penial sheath; s.gl, salivary gland. Scale bars: (A) 4 mm; (B, E–I) 2 mm; (D) 1 mm; and (C) 0.5 mm.

FIGURE 5 in Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks

FIGURE 5. Morphology of radula and gizzard plates of Scaphander grandis comb. n. (SEM). (A–С) radula: (A) lateral view of lateral teeth, (B) top view, and (C) denticles of the lateral tooth; (D) spiral sculpture of shell; (E, F) paired gizzard plates; (F1–F3) microsculpture of different zones of the paired gizzard plate, according to the designation to the plate in Fig. F; (G) unpaired plate; (H, I) gizzard contents. The end of tooth crown is indicated by asterisk. Scale bars: (A, B, D, H) 100 µm; (C, I) 50 µm; (D1–D3) 10 µm; and (E, F, G) 1 mm.

FIGURE 2 in Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks

FIGURE 2. Bayesian phylogenetic tree of the family Scaphandridae based on the concatenated dataset. Species-level clades are collapsed to a single specimen per species. Numbers above branches indicate the posterior probabilities, bellow—bootstrap support values. Distribution patterns are highlighted in color: Atlantic (blue), North Pacific (green), Indo-West Pacific (red). Sagaminopteron psychedelicum is chosen as outgroup. Studied specimen of Meloscaphander grandis is highlighted in bold.

FIGURE 3 in Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks

FIGURE 3. Shell of Scaphander grandis comb. n. (A–C) Holotype ZISP 1/62440: ventral view (A), dorsal view (B), apical view (C), h = 33 mm. (D–I) Ventral views of the following specimens: (D, H) ZISP 2/62441, station 6-10, h = 9.7 mm (D), h = 18.1 mm (H); (E) station 1-13, h = 24 mm (photo by A. Majorova); (F) ZISP 3/62442, station 10-10, h = 21.5 mm; (G) MIMB 36540, station 6-9, h = 20.3 mm (photo by A.Majorova); (I) MIMB 36540, station 6-9, specimen for DNA, h = 16.7 mm (photo by A. Majorova).

FIGURE S2 in Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks

FIGURE S2. Uncollapsed maximum likelihood phylogenetic tree of the family Scaphandridae based on the concatenated dataset. Numbers above branches indicate the bootstrap values.

FIGURE S1 in Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks

FIGURE S1. Uncollapsed Bayesian phylogenetic tree of the family Scaphandridae based on the concatenated dataset. Numbers above branches indicate the posterior probabilities.

opennotspecifiedJul 2018View details →

Figure 1 in First records of the Red Sea alien mollusc Haminoea cyanomarginata (Gastropoda: Heterobranchia: Cephalaspidea) in the Western Mediterranean

Figure 1. Underwater pictures of Haminoea cyanomarginata taken at 27 m depth in Illa del Toro, Calvià, Mallorca, Balearic Islands. (a) Dorsal view; (b) lateral view.