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200 results for “species delineation”
Figure 2 in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 2. Principal component analysis (PCA) on morphometric data obtained from adult gorgocephalids from multiple localities in the Indo-West Pacific. Note the clustering pattern indicating only two morphotypes, consistent with the two previously described species from the region.
Figure 12 in Gorgocephalidae (Digenea: Lepocreadioidea) in the Indo-West Pacific: new species, life-cycle data and perspectives on species delineation over geographic range
Figure 12. Gorgocephalus euryaleae and Gorgocephalus graboides, scanning electron micrographs. A, B, oral suckers of adult Gorgocephalus euryaleae ex Kyphosus gladius, Point Peron, Rockingham, Western Australia. C, tegument of adult Gorgocephalus euryaleae, ex Kyphosus gladius, Point Peron. D, E, oral suckers of adult Gorgocephalus graboides ex Kyphosus cinerascens, Lizard Island, Queensland, Australia. F, tegument of adult Gorgocephalus graboides ex Kyphosus cinerascens, Lizard Island. Scale bars: A, E, 40 µm; B, D, 50 µm; C, F, 20 µm.
As currently delineated, this is a complex comprising at least two species, as dem- onstrated by the work of J. M. Lamb and colleagues in 2014 and A. Monadjem and colleagues in 2015. Large gray-bellied specimens attributed to M. triton form two highly divergent molecular and chromosomal clades: on the one hand, from Tanzania, Malawi, and Mozambique (with chromosomal complement of 2n = 20-22, FN = 34); and, on the other, from DR Congo (with 2n = 32, FN = 34. Monotypic. Distribution. Extreme S South Sudan, S Ethiopia (Bale Mts), NE DR Congo, and from Uganda and Kenya SW & S to Angola, Zambia, WC Mozambique, and Malawi. in Muridae
As currently delineated, this is a complex comprising at least two species, as dem- onstrated by the work of J. M. Lamb and colleagues in 2014 and A. Monadjem and colleagues in 2015. Large gray-bellied specimens attributed to M. triton form two highly divergent molecular and chromosomal clades: on the one hand, from Tanzania, Malawi, and Mozambique (with chromosomal complement of 2n = 20-22, FN = 34); and, on the other, from DR Congo (with 2n = 32, FN = 34. Monotypic. Distribution. Extreme S South Sudan, S Ethiopia (Bale Mts), NE DR Congo, and from Uganda and Kenya SW & S to Angola, Zambia, WC Mozambique, and Malawi.
Fig. 1 a in Outdated but established?! Conchologically driven species delineations in microgastropods (Carychiidae, Carychium)
Fig. 1 a Geographic map with core distribution area of C. mariae shown in grey and sampling sites of C. mariae specimens from the first description by Paulucci (1878) given in black. Numbers 1-10 indicate
Fig. 4 in Outdated but established?! Conchologically driven species delineations in microgastropods (Carychiidae, Carychium)
Fig. 4 Two syntype specimens of Carychium mariae Paulucci, 1878. Depicted are syntypes stored in the Museo di Storia Naturale dell'Università di Firenze, Sezione di Zoologia de "La Specola" with collection number MZUF GC/11971; 6 sp.; Italy, Lombardy region (MN), Castel Goffredo; M. Paulucci. Additional syntypes (not shown) are MZUF GC/11985 (1 sp.), MZUF GC/13599 (32 sp.) and MZUF GC/ 13600 (202 sp.)
Fig. 2 in Outdated but established?! Conchologically driven species delineations in microgastropods (Carychiidae, Carychium)
Fig. 2 FE-SEM results of conchological details of Carychium tridentatum, C. minimum and C. mariae morphospecies. Shells are arranged in the following order (left to right): ventral view, side view, dorsal view, columellar view. Locality information can be retrieved from Table 1
FIGURE 2. Solanum capsicoides a. Habit. b. Spiny petiole and stem bearing flowers. c. Flower showing spiny calyx. d. Flower showing connate anthers e in Taxonomic delineation of Solanum exarmatum, a new species from Solanum capsicoides All. in Southern Western Ghats, Kerala, India
FIGURE 2. Solanum capsicoides a. Habit. b. Spiny petiole and stem bearing flowers. c. Flower showing spiny calyx. d. Flower showing connate anthers e. Poricidal dehiscence of anthers f. Longitudinal section of flower g. Anther h. Gynoecium i. Twig with mature fruits j. Persistent spiny calyx on mature berry.
FIGURE 1. Solanum exarmatum a. Habit. b. Spineless petiole and stem bearing flowers. c. Inflorescence. d in Taxonomic delineation of Solanum exarmatum, a new species from Solanum capsicoides All. in Southern Western Ghats, Kerala, India
FIGURE 1. Solanum exarmatum a. Habit. b. Spineless petiole and stem bearing flowers. c. Inflorescence. d. Longitudinal section of flower e. Spineless calyx f. Anther g. Gynoecium h. Twig with mature fruits i. Persistent calyx on mature fruit j. Reddish mature berries.
Data from: Nuclear DNA based species delineations of Coccus scale insects in symbiosis with plants and ants, and the role of plant epicuticular wax in structuring associations
We undertook phylogenetic analysis of nuclear DNA to elucidate species boundaries in the symbiotic Coccus scale insects associated with mutualistic Crematogaster ants and Macaranga plants occurring in the ever-wet forests of Southeast Asia. The coccid specimens clustered into ten lineages, each corresponding to a morphospecies assignment. The lineage identified as C. secretus was separated from the Main Clade by an outgroup. We also examined all pairwise associations among the three symbiont guilds to understand how patterns of association were structured. The analyses revealed that each ant, plant or coccid operational (taxonomic) unit often associated with multiple O(T)Us of each of the other two guilds. However, where testing was feasible, a 'preference' for one or sometimes two partner O(T)Us of each guild was often detected. Mutual 'preferences' or 'avoidances' were relatively common among the symbionts, and no conflicts of interest were apparent. The network of preferred partners among all three guilds showed compartmentalization structured by the presence/absence of plant epicuticular wax, suggesting that this feature plays a fundamental role in how the symbionts select partners that best serve their needs. To a lesser degree, the network was also structured by whether the host plant stems were ant-excavated or hollowed naturally.
FIGURES 19–23. P in New species of Neotropical Plecia Wiedemann (Diptera: Bibionidae) and delineation of the americana-, nigra-, and xyele- species-groups
FIGURES 19–23. P. nessiae sp. n., holotype male, terminalia. 19. Dorsal. 20. Ventral. 21. Posterior. 22. Lateral. 23. The classic 1934 "Surgeon's photograph" of the Lochness Monster (photograph public domain); see etymology. Scale bar = ca. 0.5 mm. Abbreviations: c, cerci; gc, gonocoxite; gs, gonostylus; p, dorsal sclerite of paramere; t9, tergite nine.
FIGURES 3–5. P in New species of Neotropical Plecia Wiedemann (Diptera: Bibionidae) and delineation of the americana-, nigra-, and xyele- species-groups
FIGURES 3–5. P. abruptavena sp. n., holotype male, male terminalia. 3. Ventral (not dissected). 4. Dorsal (dissected). 5. Posterodorsal (not dissected). Scale bar = ca. 0.5 mm. Abbreviations: gc, gonocoxite; gs, gonostylus; llgc, lateral lobe of gonocoxite; t9, tergite nine.
FIGURES 10–12. P. marginata Edwards, female. 10. Habitus. 11. Thorax, dorsal. 12 in New species of Neotropical Plecia Wiedemann (Diptera: Bibionidae) and delineation of the americana-, nigra-, and xyele- species-groups
FIGURES 10–12. P. marginata Edwards, female. 10. Habitus. 11. Thorax, dorsal. 12. Wing. Scale bars = ca. 1.0 mm.
FIGURES 27–32. Male terminalia. 27–30, P in New species of Neotropical Plecia Wiedemann (Diptera: Bibionidae) and delineation of the americana-, nigra-, and xyele- species-groups
FIGURES 27–32. Male terminalia. 27–30, P. schusteri sp. n., holotype. 27. Posterior. 28. Posterolateral. 29. Close up of gonostylus, posterior. 30. Close up of gonostylus, posterolateral. 31–32, P. americana Hardy. 31. Close up of gonostylus, posterior. 32. Close up of gonostylus, posterolateral (area behind tip of gonostylus lightened in order to make apex of gonostylus more visible). Scale bar = ca. 0.5 mm (Figs. 29–32 slightly enlarged, not to scale). Abbreviations: c, cerci; gc, gonocoxite; gs, gonostylus; i, inner (medial) surface of lateral lobe of gonocoxite; llgc, lateral lobe of gonocoxite; t9, tergite nine.
FIGURES 24–26. P in New species of Neotropical Plecia Wiedemann (Diptera: Bibionidae) and delineation of the americana-, nigra-, and xyele- species-groups
FIGURES 24–26. P. schusteri sp. n., holotype male. 24. Habitus, scale bar = ca. 1.0 mm. 25. Male terminalia, ventral, scale bar = ca. 0.5 mm. 26. Male terminalia, dorsal, scale bar = ca. 0.5 mm. Abbreviations: gc, gonocoxite; gs, gonostylus; llgc, lateral lobe of gonocoxite; t9, tergite nine.
FIGURE 18. P in New species of Neotropical Plecia Wiedemann (Diptera: Bibionidae) and delineation of the americana-, nigra-, and xyele- species-groups
FIGURE 18. P. nessiae sp. n., holotype male, habitus. Scale bar = ca. 1.0 mm. Abbreviations: cl, clypeus.
FIGURES 7–9. P in New species of Neotropical Plecia Wiedemann (Diptera: Bibionidae) and delineation of the americana-, nigra-, and xyele- species-groups
FIGURES 7–9. P. elsalvadorensis sp. n., male terminalia. 7. Dorsal. 8. Ventral. 9. Posterolateral. Scale bar = ca. 0.5 mm. Abbreviations: gc, gonocoxite; gs, gonostylus; llgc, lateral lobe of the gonocoxite; t9, tergite nine.
FIGURES 14–17. P. marginata Edwards, male terminalia. 14. Dorsal. 15. Ventral. 16. Posterior. 17 in New species of Neotropical Plecia Wiedemann (Diptera: Bibionidae) and delineation of the americana-, nigra-, and xyele- species-groups
FIGURES 14–17. P. marginata Edwards, male terminalia. 14. Dorsal. 15. Ventral. 16. Posterior. 17. Posterolateral. Scale bar = ca. 0.5 mm. Abbreviations: c, cerci; ea, ejaculatory apodeme; gc, gonocoxite; gs, gonostylus; llgc, lateral lobe of gonocoxite; t9, tergite nine.
Figures 15, 16 in Integrative delineation of species of Mediterranean freshwater planarians (Platyhelminthes: Tricladida: Dugesiidae)
Figures 15, 16. Recurva postrema Sluys & Solà sp. nov. 15. ZMA V.Pl. 7122.4. Sagittal reconstruction of the copulatory apparatus. 16. ZMA V.Pl. 7122.1. Sagittal reconstruction of the copulatory apparatus.
Figure 14 in Integrative delineation of species of Mediterranean freshwater planarians (Platyhelminthes: Tricladida: Dugesiidae)
Figure 14. Recurva postrema Sluys & Solà sp. nov. Photograph of external features (scale bar not available).
Figure 18 in Integrative delineation of species of Mediterranean freshwater planarians (Platyhelminthes: Tricladida: Dugesiidae)
Figure 18. Recurva sp. Photograph of external features of specimen from Paros (scale bar not available).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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