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728 results for “morphological identification”
Fig. 2 in The identification of the species of the 'Spilogona contractifrons species-group' and the 'Spilogona nitidicauda species-group' (Diptera, Muscidae) based on morphological and molecular analysis
Fig. 2. Spilogona orthosurstyla Xue & Tian, 1988. A. Terminalia, lateral view. B. Terminalia, dorsal view. C. Sternite 5. Scare bars: 0.25 mm.
Fig. 1 in The identification of the species of the 'Spilogona contractifrons species-group' and the 'Spilogona nitidicauda species-group' (Diptera, Muscidae) based on morphological and molecular analysis
Fig. 1. Males of Spilogona Schnabl, 1911. A–C. Male head and scutum, anterior view. A. S. contractifrons (Zetterstedt, 1838). B. S. arctica (Zetterstedt, 1838). C. S. alticola (Malloch, 1920). D–F. Sternite 5. D. S. contractifrons. E. S. arctica. F. S. alticola. G–I. Abdomen, dorsal view. G. S. contractifrons. H. S. arctica. I. S. alticola. J–L. Terminalia, lateral view. J. S. contractifrons. K. S. arctica. L. S. alticola. Scale bars: 1 mm.
Fig. 5 in The identification of the species of the 'Spilogona contractifrons species-group' and the 'Spilogona nitidicauda species-group' (Diptera, Muscidae) based on morphological and molecular analysis
Fig. 5. Males of Spilogona Schnabl, 1911. A–C. Terminalia, lateral view. A. S. imitatrix (Malloch, 1921). B. S. nitidicauda (Schnabl, 1911). C. S. platyfrons Sorokina, 2018. D–F. Cercal plate, posterior view. D. S. imitatrix. E. S. nitidicauda. F. S. platyfrons. G–I. Sternite 5. G. S. imitatrix. H. S. nitidicauda. I. S. platyfrons. Scale bars: 0.25 mm.
Fig. 6 in The identification of the species of the 'Spilogona contractifrons species-group' and the 'Spilogona nitidicauda species-group' (Diptera, Muscidae) based on morphological and molecular analysis
Fig. 6. Localities of the species of Spilogona Schnabl, 1911 used in the DNA analysis. Symbols denote the species, whilst the colour shows the same DNA sequences. A. 'S. contractifrons species-group'. B. 'S. nitidicauda species-group'.
Fig. 4 in The identification of the species of the 'Spilogona contractifrons species-group' and the 'Spilogona nitidicauda species-group' (Diptera, Muscidae) based on morphological and molecular analysis
Fig. 4. Males of Spilogona Schnabl, 1911. A–C. Head, lateral view. A. S. imitatrix (Malloch, 1921). B. S. nitidicauda (Schnabl, 1911). C. S. platyfrons Sorokina, 2018. D–F. Frons, anterior view. D. S. imitatrix. E. S. nitidicauda. F. S. platyfrons. G–I. Abdomen, dorsal view. G. S. imitatrix. H. S. nitidicauda. I. S. platyfrons. Scale bars: 1 mm.
Figure 3 in Morphology, natural history and molecular identification of tadpoles of three endemic frog species of Nyctibatrachus Boulenger, 1882 (Anura: Nyctibatrachidae) from Central Western Ghats, India
Figure 3. Tadpole of N. jog, BNHS 5900. (a) Dorsal view; (b) ventral view; (c) lateral view; (d) mouth part (not to scale).
Fig. 3 in Identification and morphological description of tadpoles of the horned frog (Amphibia: Anura: Megophryidae) Pelobatrachus stejenegeri from the southern Philippines
Fig. 3. Dorsal view of live (A) and preserved (B) tadpole of Pelobatrachus stejnegeri showing its oral disc. Scale bar = 15 mm.
Fig. 6 in Identification and morphological description of tadpoles of the horned frog (Amphibia: Anura: Megophryidae) Pelobatrachus stejenegeri from the southern Philippines
Fig. 6. Preserved tadpole of Pelobatrachus stejnegeri. A, dorsal view; B, ventral view; C, lateral view. Scale bar = 12 mm.
Fig. 7 in Identification and morphological description of tadpoles of the horned frog (Amphibia: Anura: Megophryidae) Pelobatrachus stejenegeri from the southern Philippines
Fig. 7. Tadpole of Pelobatrachus stejnegeri observed at night attaching to wood debris in its habitat.
Fig. 5 in Identification and morphological description of tadpoles of the horned frog (Amphibia: Anura: Megophryidae) Pelobatrachus stejenegeri from the southern Philippines
Fig. 5. Live tadpole of Pelobatrachus stejnegeri. A, dorsal view; B, ventral view; C, lateral view. Scale bar = 12 mm.
Figures 1-3 in Morphological and molecular identification of the hard ticks parasitizing Tremarctos ornatus (Carnivora: Ursidae) from paramo of Ecuador
Figures 1-3. Ixodes boliviensis (male)— 1. Dorsal view, 2. Ventral view, 3. Ventral view of capitulum and idiosoma.
Figure 1 in A morphology-based identification key to the Cognettia species of the world (Clitellata: Enchytraeidae)
Figure 1. Morphological characters in Cognettia species. (A) C. ozensis, anterior part, lateral view, showing nephridium (ne), and pharyngeal glands with primary pharyngeal glands (ppg), secondary pharyngeal glands (spg) (modified from Torii 2015). (B) C. anomala anterior part, lateral view, showing pharyngeal glands with ventral lobes (vl) (modified from Černosvitov 1928). (C) C. floridae, spermatheca, with ectal swelling (es), and one chamber in the spermathecal ampulla (sa) (modified from Healy 1996). (D) C. glandulosa spermatheca of the standard Cogenttia-type, with an ectal gland (eg) and two chambers in the ampulla (modified from Martinsson et al. 2015a).
Data for: Morphological species delimitation in the Western Pond Turtle (Actinemys): Can machine learning methods aid in cryptic species identification?
<p>As the discovery of cryptic species has increased in frequency, there has been interest in whether geometric morphometric data can detect fine-scale patterns of variation that can be used to morphologically diagnose such species. We used a combination of geometric morphometric data and an ensemble of five supervised machine learning methods to investigate whether plastron shape can differentiate two putative cryptic turtle species, <em>Actinemys marmorata</em> and <em>Actinemys pallida</em>. <em>Actinemys</em> has been the focus of considerable research due to its biogeographic distribution and conservation status. Despite this work, reliable morphological diagnoses for its two species are still lacking. We validated our approach on two datasets, one consisting of eight morphologically disparate emydid species, and the other consisting of two subspecies of <em>Trachemys</em> (<em>T. scripta scripta</em>, <em>T. scripta elegans</em>). The validation tests returned near-perfect classification rates, demonstrating that plastron shape is an effective means for distinguishing taxonomic groups of emydids via machine learning methods. By contrast, the same methods did not return high classification rates for a set of alternative phylogeographic and morphological binning schemes in <em>Actinemys</em>. All classification hypotheses performed poorly relative to the validation datasets and no single hypothesis was unequivocally supported for <em>Actinemys</em>. Two hypotheses had machine learning performance that was marginally better than our remaining hypotheses. In both cases, those hypotheses favored a two-species split between <em>A. marmorata</em> and <em>A. pallida</em> specimens, lending tentative morphological support to the hypothesis of two <em>Actinemys</em> species. However, the machine learning results also underscore that <em>Actinemys</em> as a whole have lower levels of plastral variation than other turtles within Emydidae, but the reason for this morphological conservatism is unclear.</p>
Fig. 3 in Molecular and Morphological Identification of Mola Sunfish Specimens (Actinopterygii: Tetraodontiformes: Molidae) from the Indian Ocean
Fig. 3. Photographs of the clavus of the two specimens of Mola sp. A from Oman (A: OMMSFC 1085; B: OMMSTC 1097). Solid arrows indicate clavus fin rays. Open arrows indicate ossicles. The double-headed arrow indicates the width of the smooth band. Question marks indicate unclear ossicles.
Fig. 4 in Molecular and Morphological Identification of Mola Sunfish Specimens (Actinopterygii: Tetraodontiformes: Molidae) from the Indian Ocean
Fig. 4. Specimens of Mola sp. A as illustrated in earlier literature. A, OMMSFC 1085, 91.6 cm TL, fig. 1 (fresh) in Jawad et al. (2012); B, OMMSTC 1097, 135.0 cm TL, fig. 1 (fresh) in Jawad (2013); C, KMNH VR 100,123, 325.0 cm TL, fig. 2C (stuffed) in Sawai et al. (2015). Arrows indicate bumps developing with age. Scale bars: 10 cm. Redrawn with permission from Jawad et al. (2012), Jawad (2013), and Sawai et al. (2015).
Fig. 1 in Molecular and Morphological Identification of Mola Sunfish Specimens (Actinopterygii: Tetraodontiformes: Molidae) from the Indian Ocean
Fig. 1. Correspondence between species names of Mola sunfishes in previous studies. The dotted arrows indicate unclear relationships, while the solid arrows indicate clear relationships.
Table S1. Geographical localization of Pinus pseudostrobus Lindley. specimens used in the study and concordance of morphological identification with real-time PCR-HRM assay for Pinus pseudostrobus varieties pseudostrobus, apulcensis, oaxacana and coatepecensis, based on the cluster pattern.
<p>File encloses geographical location of collected Pinus pseudostrobus samples in México, as well as haplotype grouping obtaines from HRM analysis</p>
Fig. 4 in Morphological and molecular identification of Cryptocotyle lingua metacercariae isolated from Atlantic cod (Gadus morhua) from Danish seas and whiting (Merlangius merlangus) from the English Channel
Fig. 4 Phylogenetic trees based on cox1 mtDNA (left tree) and ITS rDNA (right tree) sequences using the ML method with 1000 bootstraps
Fig. 3 in Morphological and molecular identification of Cryptocotyle lingua metacercariae isolated from Atlantic cod (Gadus morhua) from Danish seas and whiting (Merlangius merlangus) from the English Channel
Fig. 3 Excysted Cryptocotyle lingua metacercariae at different degrees of contraction a in whiting from the English Channel, b in cod from Danish waters
Fig. 2 in Morphological and molecular identification of Cryptocotyle lingua metacercariae isolated from Atlantic cod (Gadus morhua) from Danish seas and whiting (Merlangius merlangus) from the English Channel
Fig. 2 Morphology of excysted Cryptocotyle lingua metacercariae (ventral view) from Gadus morhua and Merlangius merlangius. Abbreviations: bi.i, bifurcation of intestine; e, oesophagus; ex.c, excretory canal; ex.p, excretory pore; ic, intestinal caecum; pp, prepharynx; ph, pharynx; ov, ovary; os, oral sucker; s.r, seminal receptacle; t, testis; vg.c, ventrogenital complex; vi, vitellaria; ① distance from oral sucker to end of pharynx; ② distance from oral sucker to intestinal branches; ③ width 1; ④ width 2; ⑤ oral sucker diameter; ⑥ ventrogenital complex diameter; ⑦ total length
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
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The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
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