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1,692 results for “Caenogastropoda”
FIG. 10. — Reynellona borbonica n in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 10. — Reynellona borbonica n. sp., La Réunion, Marion-Dufresne, cruise MD 32, stn DR47 (MNHN); A, B, holotype, H = 3.1 mm; C, paratype, protoconch. Scale bar: C, 100 µm.
FIG. 9. — Reynellona bollandi n in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 9. — Reynellona bollandi n. sp., holotype, Okinawa, Japan (LACM 2455), H = 2.2 mm; A, B, apertural and side views; C, protoconch. Scale bar: C, 100 µm.
FIG. 8. — Microliotia alvanioides n in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 8. — Microliotia alvanioides n. sp., off Fatu Hiva, Marquesas Is (MNHN); A, B, holotype, apertural and side views, H = 1.75 mm; C, D, paratypes; C, basal view; D, protoconch. Scale bar: D, 100 µm.
FIG. 7. — Mareleptopoma vaubani n in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 7. — Mareleptopoma vaubani n. sp., holotype, off Nouméa, New Caledonia, 250-350 m (MNHN), H = 0.95 mm; A, B, apertural and side views; C, protoconch. Scale bar: C, 50 µm.
FIG. 5. — Mareleptopoma intermedia n in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 5. — Mareleptopoma intermedia n. sp., holotype, Fanning, Line Islands (BPBM), H = 1.3 mm; A, B, apertural and side views; C, protoconch. Scale bar: C, 100 µm.
FIG. 6. — Mareleptopoma pellucens n in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 6. — Mareleptopoma pellucens n. sp., Rottnest I., Western Australia (AMS 135347); A-C, holotype, H = 1.1 mm; A, B, apertural and side views; C, protoconch; D, paratype, H = 0.75 mm. Scale bar: C, 100 µm.
FIG. 3. — Clatrosansonia troendlei n. gen., n in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 3. — Clatrosansonia troendlei n. gen., n. sp., holotype, Tahiti, French Polynesia (MNHN), H = 1.0 mm; A, B, apertural and side views; C, protoconch. Scale bar: C, 50 µm.
FIG. 2 in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 2. — Clatrosansonia philippina (Bandel & Kowalke, 1997) n. comb., Jeddah, Red Sea (MZB 003794), H = 1.27 mm; A, B, apertural and side views; C, protoconch. Scale bar: C, 50 µm.
FIG. 4. — Mareleptopoma drivasi n in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 4. — Mareleptopoma drivasi n. sp.; A-C, holotype, cap La Houssaye, La Réunion (MNHN), H = 1.1 mm; A, B, apertural and side views; C, protoconch; D, paratype, Boucan Canot, La Réunion (MNHN), H = 0.93 mm. Scale bar: C, 100 µm.
FIG. 1 in New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda)
FIG. 1. — Astrosansonia dautzenbergi (Bavay, 1917) n. comb.; A, B, radula; C-E, topotype from Raiatea I., Society Is, Polynesia (MNHN), diameter 1.1 mm; F, protoconch. Abbreviations: c, central tooth; l, lateral; m, marginals. Scale bars: A, 2 µm; B, 3 µm; F, 50 µm.
Figures 38–40 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)
Figures 38–40. Tenagodus squamatus, from living and preserved specimens (Bahamas). 38: oblique dorsal aspect of headfoot region, mantle reflected along naturally occurring slit; note small head and massive operculum, short looped osphradium, absence of rectum, and simple mantle margin (FMNH 296703, from preserved animal). 39: posterior animal, right side (FMNH 296700, from living specimen). 40: posterior animal, left side (as before, different animal). Scale bar = 5 mm. Abbreviations: com, columellar muscle; ct, ctenidium; dg, digestive gland; en, endostyle; es, oesophagus; ey, eye; fg, food groove; ft, foot; gd, gonoduct; go, gonad; he, heart; hy, hypobranchial gland; ki, kidney; mo, mouth opening; op, operculum; os, osphradium; pg, pallial gonoduct; pgl, lamella attached to right side of pallial gonoduct; sh, shell; st, stomach; vs, vascular system with embedded crystals.
Figures 26–31. Figs 26-28 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)
Figures 26–31. Figs 26-28, Tenagodus modestus, operculum (Florida Keys, FMNH 296716). 26: outside (heads-on) aspect, diameter = 2.5 mm. 27: razorblade section of whole mount attached to foot, showing internal compartments; diameter = 2.5 mm. 28: detail of Fig. 26, spines on lamellar margin. Figs 29, 30, Tenagodus squamatus, operculum (Bahamas, FMNH 296703). 29: razorblade section of whole mount attached to foot, showing internal compartments; diameter = 5.6 mm. 30: details of Fig. 29, spines on lamellar margin (note attached sponge spicules). Fig. 31, Tenagodus modestus, highly flexible ctenidial filaments (FMNH 296716). All SEM, critical-point dried. Scale bars = 100 Mm.
Figures 32–35. Figs 32, 33 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)
Figures 32–35. Figs 32, 33, Tenagodus modestus, radula (Florida Keys, FMNH 296716). 32: part of whole mount showing entire rows. 33: half row, rachidian teeth on left (partly dislocated to show base), smooth outer marginal on right. Figs 34, 35, Tenagodus squamatus, radula (Bahamas, FMNH 296701). 34: part of whole mount showing entire rows. 35: half row, rachidian tooth in centre left, smooth outer marginal on right (surface pattern resulting from preservation artefact). All SEM. Scale bars = 40 Mm (Figs 32, 34) and 20 Mm (Figs 33, 35).
Figures 7–14. Figs 7-9 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)
Figures 7–14. Figs 7-9, Tenagodus modestus, teleoconch detail (Florida Keys, FMNH 296716). 7: transition from shell covering posterior organs (shell slit filled) to posterior mantle cavity region (shell slit narrowed to series of holes). 8: detail of Fig. 7; note regular, layered restrictions. 9: late shell; slit unrestricted. Figs 10–13, Tenagodus squamatus, teleoconch detail (Bahamas, FMNH 296709). 10: transition from shell covering posterior organs (shell slit filled) to posterior mantle cavity region (shell slit open). 11, 12: detail of Fig. 10; note incomplete restrictions when compared to Fig. 8. Fig. 13: adult sculpture; note fluted hollow spines. Fig. 14, Tenagodus barbadensis sp. nov., teleoconch detail (FMNH 301290); early whorls opened to display internal septation by calcareous plugs. All SEM. Scale bars = 300 Mm (Figs 8, 11, 12) and 1 mm (all others).
Figures 1–6. Figs 1, 2 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)
Figures 1–6. Figs 1, 2, Tenagodus modestus, shell. 1: Florida Keys, 56 m, FMNH 296716; greatest length = 48 mm. 2: lectotype of Siliquaria modesta Dall, 1889, Cuba, MCZ 341075; greatest length = 22.8 mm. Figures 3–5, Tenagodus squamatus, shell. 3: Venezuela, Golfo Triste, 46–55 m, FMNH 296706; greatest length = 165 mm. 4: Bermuda, 110 m, FMNH 296697; greatest dimension (diameter of spiral) = 46.6 mm. 5: lectotype of Tenagodus anguillae Mörch 1861, Anguilla; ZMK; greatest length = 11.6 mm. Fig. 6, Tenagodus barbadensis sp. nov., shell; Barbados, 69 m, FMNH 301239; greatest length = 35.8 mm.
Figures 41–43 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)
Figures 41–43. Tenagodus modestus in sponge Thrombus sp. (Florida Keys, HBOM 065: 00767, 065: 02026). 41: sponge colony in 56 m depth off Key Largo; approximately 3 m in length (underwater photograph by submersible). 42: detail of Fig. 41, sponge surface with apertural openings of gastropods (alcohol-preserved). 43: side view of dissected, alcoholpreserved sponge, showing density in situ. Coin diameter = 19 mm.
Figures 36–37 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)
Figures 36–37. Tenagodus modestus, external softbody anatomy, from preserved specimen (Florida Keys, FMNH 296715). 36: overall morphology; ctenidial filaments reflected out of naturally slitted mantle cavity to expose food groove; note greatly reduced cephalic and pedal region compared to rest of body. 37: oblique lateral aspect of head-foot region, mantle reflected along naturally occurring slit; note short looped osphradium, glandular pad, absence of rectum, and weak mantle papillae on inner mantle margin. Scale bars = 2 mm. Abbreviations: an, anus; com, columellar muscle; ct, ctenidium; dg, digestive gland; en, endostyle; ey, eye on outer base of tentacle; fg, food groove; ft, foot; mep, mantle edge papillae; ms, mantle slit; op, operculum; os, osphradium; ov, ovipositor.
Figures 15–25. Figs 15-21 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)
Figures 15–25. Figs 15-21, Tenagodus modestus, protoconch (Florida Keys, FMNH 296716). 15, 16: side aspects. 17: basal aspect with larval shell umbilicus. 18: apical aspect, showing smooth embryonic shell and sculptured larval shell. 19, 20: oblique aspects of protoconch. 21: detail of sculpture, pustules and striae (embryonic shell on the left). Fig. 22, Tenagodus squamatus, protoconch (courtesy J. Leal). Figs 23–25, Tenagodus barbadensis sp. nov., protoconch (FMNH 301290). 23: detail of sculpture, pustules and striae (embryonic shell on the left). 24: side aspect showing large embryonic shell. 25: apical aspect, showing smooth embryonic shell and comparatively small larval shell. All SEM. Arrows marking simple apertural margin of embryonic shell (PC-I) and sinuous apertural margin of larval shell (PC-II). Scale bars = 20 Mm (Fig. 20), 80 Mm (Figs 22, 24, 25), and 40 Mm (all others).
Figure 26 in Refining molluscan characters: morphology, character coding and a phylogeny of the Caenogastropoda
Figure 26. Strict consensus tree showing all character optimizations. Black hashmarks indicate forward changes, grey hashmarks indicate forward homoplasies (DELTRAN). Numbers at the nodes indicate Bremer support.
Figure 25 in Refining molluscan characters: morphology, character coding and a phylogeny of the Caenogastropoda
Figure 25. Strict consensus of two MPT's, length = 188, CI = 0.53 and RI = 0.63. Numbers at the nodes refer to discussion in the text.
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