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20 results for “Pleuroceridae”
FIGURE 1 in Taxonomic revision of Elimia christyi and E. interrupta (Mollusca: Caenogastropoda: Pleuroceridae)
FIGURE 1. Shells and radulae from recognized and nominal Elimia species. A. Eight landmarks used for morphometric analyses shown on an illustration of E. interrupta modified from Burch and Tottenham (1980). B. E. interrupta, lectotype, ANSP 8760 a, 13.6 mm x 7.4 mm. C. Goniobasis christyi, lectotype, USNM 18451, 16.5 mm x 9 mm. D. G. instabilis, lectotype, USNM 118976, 13.2 mm x 7.5 mm. D. E. interrupta, NCSM 29499, 13.6 mm x 7.2 mm. E. E. interrupta, NCSM 6595, rachidian and laterals. Scale bar 100 µm. F. E. interrupta, NCSM 6595, marginals. Scale bar 100 µm.
Supplementary datasets for: Prodigious polyphyly in Pleuroceridae (Gastropoda: Cerithioidea)
<p>Phylogenomic studies with hundreds or thousands of loci are rare for most invertebrate groups, including freshwater gastropods. This can prevent understanding of phylogeny, which hinders many areas of research. Pleuroceridae is a family of freshwater snails that is highly imperiled and plays an essential role in the ecology of many freshwater systems of the eastern United States. However, the evolutionary history of the family is not understood, and the systematics of the family has not been revised in a modern framework. Pleurocerids display a variety of egg-deposition behaviors and shell shapes, making the family an ideal system for studying evolution of invertebrate life history and morphology. However, past mitochondrial-based phylogenetic analyses have failed to produce meaningful phylogenetic hypotheses, preventing conclusions about pleurocerid systematics and evolution. Here, we generated a novel anchored hybrid enrichment probe set with phylogenetic utility for Pleuroceridae. We sampled pleurocerids from across their range to test the probe set and generated a backbone phylogeny. Our analyses uncovered striking levels of polyphyly among currently accepted genera. Numerous species were also polyphyletic, indicative of unrecognized diversity. Phylogenetic patterns also revealed considerable convergence of shell morphologies. In contrast, anatomical and life history features appeared to be much less homoplastic. Despite generic paraphyly, high support for most major clades and phylogenetic cohesiveness of non-shell characters indicate utility of the AHE probe set for studying pleurocerid evolution.</p>
Supplementary datasets for: Prodigious polyphyly in Pleuroceridae (Gastropoda: Cerithioidea)
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FIGURE 2 in Taxonomic revision of Elimia christyi and E. interrupta (Mollusca: Caenogastropoda: Pleuroceridae)
FIGURE 2. Scatterplots of PC1 and PC3 versus PC2 from principal component analyses. Symbols represent type material: star, E. interrupta lectotype; square, G. christyi lectotype; circle, G. instabilis lectotype.
FIGURE 4 in A new species of " Lithasia " (Mollusca: Caenogastropoda: Pleuroceridae) from the Harpeth River, Tennessee, U. S. A.
FIGURE 4. Strict consensus of three equally parsimonious trees generated using COI data. Numbers above nodes are jackknife values = 50%, below nodes are Bremer values. Taxa identified as in Table 1.
FIGURE 3. Radulae and shells from Harpeth River pleurocerids. A. Li in A new species of " Lithasia " (Mollusca: Caenogastropoda: Pleuroceridae) from the Harpeth River, Tennessee, U. S. A.
FIGURE 3. Radulae and shells from Harpeth River pleurocerids. A. Li. armigera laterals from The Narrows of the Harpeth State Park. B. Laterals from "Li." spicula, holotype NCSM 26807. Scale bars, 50 m. C. "Li." spicula, holotype NCSM 26807, 31 mm.
FIGURE 2 in A new species of " Lithasia " (Mollusca: Caenogastropoda: Pleuroceridae) from the Harpeth River, Tennessee, U. S. A.
FIGURE 2. Scatterplots of PC2 and PC3 versus PC1 for Harpeth River Le. praerosa, Li. armigera, and Li. spicula.
FIGURE 1 in Taxonomic revision of Elimia christyi and E. interrupta (Mollusca: Caenogastropoda: Pleuroceridae)
FIGURE 1. Shells and radulae from recognized and nominal Elimia species. A. Eight landmarks used for morphometric analyses shown on an illustration of E. interrupta modified from Burch and Tottenham (1980). B. E. interrupta, lectotype, ANSP 8760a, 13.6 mm x 7.4 mm. C. Goniobasis christyi, lectotype, USNM 18451, 16.5 mm x 9 mm. D. G. instabilis, lectotype, USNM 118976, 13.2 mm x 7.5 mm. D. E. interrupta, NCSM 29499, 13.6 mm x 7.2 mm. E. E. interrupta, NCSM 6595, rachidian and laterals. Scale bar 100 µm. F. E. interrupta, NCSM 6595, marginals. Scale bar 100 µm.
FIGURE 1 in A new species of " Lithasia " (Mollusca: Caenogastropoda: Pleuroceridae) from the Harpeth River, Tennessee, U. S. A.
FIGURE 1. Map showing collections of Li. armigera from the Harpeth River drainage, Tennessee.
Figure 5 from: Whelan NV, Johnson PD, Garner JT, Strong EE (2017) On the identity of Leptoxis taeniata – a misapplied name for the threatened Painted Rocksnail (Cerithioidea, Pleuroceridae). ZooKeys 697: 21-36. https://doi.org/10.3897/zookeys.697.14060
Figure 5 - Type and topotypic material of L. picta and its synonym L. taeniata. A, B USNM 12074, Anculosa picta Conrad, 1834 (possible syntypes) C MCZ 294989, Anculosa picta Conrad, 1834 (possible syntype) D NHMUK uncatalogued, Anculosa taeniata Conrad, 1834 (possible paralectotype) E MCZ 294987, Anculosa taeniata Conrad, 1834 (paralectotype) F ANSP 27620, Anculosa taeniata Conrad, 1834 (lectotype) G–I ANSP 413583, Anculosa taeniata Conrad, 1834 (paralectotypes) J, K ANSP 187076, "Leptoxis taeniata", collected by J.H. McLellan, unknown year (topotypic). L–O ANSP 65451, "Leptoxis taeniata", collected by C.W. Johnson, 1894 (topotypic). Scale bar: 5mm.
Figure 4 from: Whelan NV, Johnson PD, Garner JT, Strong EE (2017) On the identity of Leptoxis taeniata – a misapplied name for the threatened Painted Rocksnail (Cerithioidea, Pleuroceridae). ZooKeys 697: 21-36. https://doi.org/10.3897/zookeys.697.14060
Figure 4 - Photographs of live animals. A Painted Rocksnail (L. coosaensis) B Spotted Rocksnail (L. picta)
Figure 2 from: Whelan NV, Johnson PD, Garner JT, Strong EE (2017) On the identity of Leptoxis taeniata – a misapplied name for the threatened Painted Rocksnail (Cerithioidea, Pleuroceridae). ZooKeys 697: 21-36. https://doi.org/10.3897/zookeys.697.14060
Figure 2 - Growth series. A–F Adult (A–C) and juvenile (D–F) shells of the Painted Rocksnail, Leptoxis coosaensis. All individuals grown in captivity. G–L Adult (G–I) and juvenile (J–L) shells of the Spotted Rocksnail, Leptoxis picta. Juveniles grown in captivity. Scale bar: 4 mm.
Figure 1 from: Whelan NV, Johnson PD, Garner JT, Strong EE (2017) On the identity of Leptoxis taeniata – a misapplied name for the threatened Painted Rocksnail (Cerithioidea, Pleuroceridae). ZooKeys 697: 21-36. https://doi.org/10.3897/zookeys.697.14060
Figure 1 - Map showing historical range of the Painted Rocksnail, L. coosaensis, and the Spotted Rocksnail, L. picta.
Figure 3 from: Whelan NV, Johnson PD, Garner JT, Strong EE (2017) On the identity of Leptoxis taeniata – a misapplied name for the threatened Painted Rocksnail (Cerithioidea, Pleuroceridae). ZooKeys 697: 21-36. https://doi.org/10.3897/zookeys.697.14060
Figure 3 - Type material of L. coosaensis and its synonyms and other specimens showing conchological variation seen in L. coosaensis. A USNM 121295, Anculosa coosaensis Lea, 1861 (lectotype) B UMMZ 101139, Anculosa aldrichi Goodrich, 1922 (holotype) C UMMZ 10144, Anculosa brevispira Goodrich, 1922 (holotype) D UMMZ 10145, Anculosa choccoloccoensis, Goodrich, 1922 (holotype) E USNM 1456804, Anculosa coosaensis Lea, 1861 (paralectotype) F–I USNM 121294 Anculosa coosaensis Lea, 1861 (paralectotypes) J USNM 121296 Anculosa coosaensis Lea, 1861 (paralectotype) K, L USNM 504866 "Leptoxis taeniata". N–P USNM 336408 "Leptoxis taeniata". Scale bar: 5 mm.
Figure 5 from: Minton RL, McGregor BL, Hayes DM, Paight C, Inoue K (2017) Genetic structuring in the Pyramid Elimia, Elimia potosiensis (Gastropoda: Pleuroceridae), with implications for pleurocerid conservation. Zoosystematics and Evolution 93(2): 437-449. https://doi.org/10.3897/zse.93.14856
Figure 5 - Principal coordinates analysis of ISSR genetic distances from the 'small' study showing overlap of populations. Populations labeled as in Figure 2.
Figure 6 from: Minton RL, McGregor BL, Hayes DM, Paight C, Inoue K (2017) Genetic structuring in the Pyramid Elimia, Elimia potosiensis (Gastropoda: Pleuroceridae), with implications for pleurocerid conservation. Zoosystematics and Evolution 93(2): 437-449. https://doi.org/10.3897/zse.93.14856
Figure 6 - Principal coordinates analysis of ISSR genetic distances from the 'large' study showing separation of populations. Populations labeled as in Figure 2.
Figure 4 from: Minton RL, McGregor BL, Hayes DM, Paight C, Inoue K (2017) Genetic structuring in the Pyramid Elimia, Elimia potosiensis (Gastropoda: Pleuroceridae), with implications for pleurocerid conservation. Zoosystematics and Evolution 93(2): 437-449. https://doi.org/10.3897/zse.93.14856
Figure 4 - Maximum-likelihood phylogeny of E. potosiensis sequences. Individual snails are color-coded by river drainage and labelled according to Figure 1 and Table 1. Branches with bootstrap support ? 80% are labeled.
Figure 2 from: Minton RL, McGregor BL, Hayes DM, Paight C, Inoue K (2017) Genetic structuring in the Pyramid Elimia, Elimia potosiensis (Gastropoda: Pleuroceridae), with implications for pleurocerid conservation. Zoosystematics and Evolution 93(2): 437-449. https://doi.org/10.3897/zse.93.14856
Figure 2 - Map showing collecting localities for both ISSR studies. Inset shows position of Oklahoma (OK) relative to Arkansas (ARK1-3) populations. Shell of E. potosiensis from population OK is shown.
Figure 1 from: Minton RL, McGregor BL, Hayes DM, Paight C, Inoue K (2017) Genetic structuring in the Pyramid Elimia, Elimia potosiensis (Gastropoda: Pleuroceridae), with implications for pleurocerid conservation. Zoosystematics and Evolution 93(2): 437-449. https://doi.org/10.3897/zse.93.14856
Figure 1 - Map of E. potosiensis collection localities, color coded by river drainage, used in the phylogenetic analysis. Detailed locality information is in Table 1.
Figure 3 from: Minton RL, McGregor BL, Hayes DM, Paight C, Inoue K (2017) Genetic structuring in the Pyramid Elimia, Elimia potosiensis (Gastropoda: Pleuroceridae), with implications for pleurocerid conservation. Zoosystematics and Evolution 93(2): 437-449. https://doi.org/10.3897/zse.93.14856
Figure 3 - TCS parsimony network of E. potosiensis 16S haplotypes color coded by river drainage. Hash marks represent mutational steps between haplotypes.
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