Published December 3, 2022
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Table 2 in Neither slugs nor snails: a molecular reappraisal of the gastropod family Velutinidae
Description
Table 2. Synopsis of the most useful characters and information for diagnosis of subfamilies and genera
| Character | Marseniopsinae | Hainotinae | Velutininae | Lamellariinae | Calyptoconcha | Variolipallium | Pacifica | Djiboutia | Coriocella | Lamellaria | Marsenia | Marseniella |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| External morphology | ||||||||||||
| Shape | Flat or dome shaped; outline rounded or polygonal | Dome shaped; outline rounded or polygonal | Flat or dome shaped; outline rounded | Flat or dome shaped; outline rounded or polygonal | Flat or dome shaped; outline rounded | Flat or dome shaped; outline rounded or polygonal | Flat or dome shaped; outline rounded | Flat or dome shaped; outline rounded | Dome shaped; outline rounded, two to six warts | Flat or dome shaped; outline rounded | Flat or dome shaped; outline rounded | Flat; outline rounded |
| Size (cm) | 0.5–11.5 | 0.5–5.0 | 0.5–11.0 | 0.5–10.0 | 1–4 | 0.5–3.0 | 0.5–1.0 | 0.5-3.3 | 1.5–8.5 | 0.3–1.1 | 0.3–10 | 2.2 |
| Mantle | Fused or dorsal fissure | Fused | Fused or not fused | Fused or dorsal fissure | Fused | Fused or dorsal fissure | Fused | Fused | Fused | Fused | Fused or dorsal fissure | Fused |
| Shell | ||||||||||||
| Shape | Ear shaped | Ear shaped | Ear, shield or cap shaped | Ear shaped | Ear shaped | Ear shaped | Ear shaped | Ear shaped | Ear shaped | Ear shaped | Ear shaped | Ear shaped, last whorl detached from spire |
| Spire | High | High | Low or high | Low or high | High | High | Low | Low | Low | Low | Low or high | Low |
| Thickness | Very thin | Thin or very thin | Moderately thin or thin | Thin or very thin | Very thin | Very thin | Very thin | Thin or very thin | Thin | Thin | Thin | Thin |
| Texture | Weak to membranaceous | Weak | Strong to weak | Strong to membranaceus | Weak to membranaceous | Weak to membranaceous | Weak | Weak | Strong to moderate | Weak | Weak | Membranaceous |
| Periostracum | Thin to not visible | Thin to moderately developed, hairy | Moderately or well developed, occasionally hairy | Thin to not visible | Not visible | Not visible | Not visible | Not visible | Thin | Not visible | Not visible | ? |
| Nucleous | With or without granular sculpture | ? | With or without granular sculpture | Subsutural axial folds | Smooth | Subsutural axial folds | Subsutural axial folds | Subsutural axial folds | Subsutural axial folds | Subsutural axial folds | Subsutural axial folds | ? |
| Radula | ||||||||||||
| Formula | 2:1:1:1:2 | 2:1:1:1:2 | 2:1:1:1:2 | 0:1:1:1:0 | 0:1:1:1:0 | 0:1:1:1:0 | 0:1:1:1:0 | 0:1:1:1:0 | 0:1:1:1:0 | 0:1:1:1:0 | 0:1:1:1:0 | 0:1:1:1:0 |
| Rachidian | Elongated.Base rectangular. Cusp, three to four small to pronounced denticles, each side | Elongated. Base rectangular. Cusp, two denticles each side | Squared. Base broad. Cusp with or without one to six pronounced denticles each side | Elongated. Base with or without bifurcation. Cusp with or without several denticles | Elongated.Base squared. Cusp, several small denticles | Elongated. Base bifurcated.Cusp, few to several very small to pronounced denticles | Elongated. Base bifurcated. Cusp, three or four long denticles each side | Elongated. Base bifurcated.Cusp smooth, slim | Elongated. Base bifurcated. Cusp, several small denticles | Elongated. Base bifurcated.Cusp, few to several small denticles, right side | Elongated. Base bifurcated. Cusp, several denticles | Elongated. Base bifurcated. Cusp, several denticles |
| Lateral | Elongated.Cusp triangular, external.Denticles: two or three small to pronounced, internal; one or two small to large, external | Elongated. Cusp external.Denticles: one internal; two external. | Squared or elongated. Cusp triangular, internal or external. Denticles: one to six, both sides | Elongated.Cusp external, with or without bold, with or without internal truncated projection.Denticles: with or without both or internal side | Elongated. Cusp triangular external. Denticles: several small, both sides | Elongated. Cusp triangular external. Denticles: few to several, very small to pronounced, both sides or internal side | Elongated. Cusp triangular external. Denticles: four to seven, long, both sides | Elongated. Cusp bold, smooth, external. Truncated projection internal, smooth | Elongated. Cusp bold, external, triangular. Denticles: small, external. Truncated projection, internal, small denticles, distal side | Elongated. Cusp bold, external, smooth. Truncated projection internal, several small denticles, distal side | Elongated. Cusp triangular, external. Denticles: several, both sides | Elongated. Cusp triangular, external. Denticles: several, both sides |
| Marginal | Narrow, smooth | Narrow, one small denticle, internal side | Narrow, with or without one small denticle, internal side | – | – | – | – | – | – | – | – | – |
| Jaws | ||||||||||||
| Shape | Elongated | Elongated. Denticles | Short to elongated. Denticles | Short to elongated | Short.Small, vertical, central protrusion | Short to elongated | Short.External, upper side protrusion | Short | Elongated | Short to elongated | Short to elongated | Short |
| Composition | Scale-like elements | ? | Scale-like elements | Uniform | Uniform | Uniform | Uniform | Uniform | Uniform | Uniform | Uniform | Uniform |
| Geographical distribution | Southern Ocean, south Argentinian waters | North-eastern Pacific, South Australia, New Zealand | Arctic, worldwide temperate regions | Worldwide temperate, tropical regions | Northern temperate Atlantic, Alboran Sea, South Africa, Brazil, Uruguay | Tropical West Pacific, New Zealand, Caribbean, tip of South America, South Africa | Indo-West Pacific | Indo-West Pacific | Indo-West Pacific | Tropical and Temperate eastern Pacific, Tropical Atlantic, north-eastern Atlantic, Mediterranean Sea, North Sea | Indo-West Pacific, Mediterranean Sea, Caribbean Sea | Norway |
| Depth (m) | 75 – 668 | 0 – 45 | 0– 1200 | 0 – 4500 | 58 – 4500 | 42 – 1573 | 20 – 244 | 0 –101 | 0 – 18 | 0 – 61 | 0 – 214 | ? |
Notes
Published as part of Fassio, Giulia, Stefani, Matteo, Russini, Valeria, Buge, Barbara, Bouchet, Philippe, Treneman, Nancy, Malaquias, Manuel António E., Schiaparelli, Stefano, Modica, Maria Vittoria & Oliverio, Marco, 2023, Neither slugs nor snails: a molecular reappraisal of the gastropod family Velutinidae, pp. 946-948 in Zoological Journal of the Linnean Society 197 (4) on page 946, DOI: 10.1093/zoolinnean/zlac091, http://zenodo.org/record/7814306
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Related works
- Is part of
- Journal article: 10.1093/zoolinnean/zlac091 (DOI)
- Journal article: urn:lsid:plazi.org:pub:705CFFAFFFB4FFF3164A7701FFBC587C (LSID)
- Journal article: http://publication.plazi.org/id/705CFFAFFFB4FFF3164A7701FFBC587C (URL)
- Journal article: http://zenodo.org/record/7814306 (URL)
- Journal article: http://zoobank.org/6DBA2650-DB10-4BDC-AEDB-2EF08D82815E (URL)